1.4.0

* With 160 envs, cuts time from ~14s to ~2.5s
* Change the output to be more like `pyenv-versions'
* Shellcheck fixes
* virtualenv: Only show non-envs for completion since env engines don't support piggy-backing envs
* Remove dead/unused code
* Fix IFS handling
`IFS=: <command>' doesn't apply that IFS to expansions in <command>,
it has to be set separately earlier
* Adjust and refactor tests

---------

Co-authored-by: Ivan Pozdeev <vano@mail.mipt.ru>

.github/FUNDING.yml

@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [pyenv] # Replace with up to 4 GitHub Sponsors-enabled usernames e.g., [user1, user2]
+patreon: # Replace with a single Patreon username
+open_collective: pyenv # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: # Replace with a single Tidelift platform-name/package-name e.g., npm/babel
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,46 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+### Prerequisite
+* [ ] Make sure no duplicated issue has already been reported in [the pyenv-virtualenv issues](https://github.com/pyenv/pyenv-virtualenv/issues). You should look in closed issues, too.
+* [ ] Make sure you are reporting a problem in Pyenv-Virtualenv and not seeking consultation with Pyenv-Virtualenv use.
+  * GitHub issues are intended mainly for Pyenv-Virtualenv development purposes. If you are seeking help with Pyenv-Virtualenv use, check [Pyenv-Virtualenv documentation](https://github.com/pyenv/pyenv-virtualenv?tab=readme-ov-file#usage), go to a user community site like [Gitter](https://gitter.im/yyuu/pyenv), [StackOverflow](https://stackoverflow.com/questions/tagged/pyenv), etc, or to [Discussions](https://github.com/orgs/pyenv/discussions).
+* [ ] Make sure your problem is not derived from packaging (e.g. [Homebrew](https://brew.sh)).
+  * Please refer to the package documentation for the installation issues, etc.
+* [ ] Make sure your problem is not derived from other plugins.
+  * This repository is maintaining the `pyenv-virtualenv` plugin only. Please refrain from reporting issues of other plugins here.
+
+### Describe the bug
+A clear and concise description of what the bug is.
+Do specify what the expected behaviour is if that's not obvious from the bug's nature.
+
+#### Reproduction steps
+Listing the commands to run in a new console session and their output is usually sufficient.
+Please use a Markdown code block (three backticks on a line by themselves before and after the text) to denote a console output excerpt.
+
+#### Diagnostic details
+- [ ] Platform information (e.g. Ubuntu Linux 20.04):
+- [ ] OS architecture (e.g. amd64):
+- [ ] pyenv version:
+- [ ] pyenv-virtualenv version:
+- [ ] Python version:
+- [ ] virtualenv version (if installed):
+- [ ] Please attach the debug log of a faulty Pyenv invocation as a gist
+  * If the problem happens in a Pyenv invocation, you can turn on debug logging by setting `PYENV_DEBUG=1`, e.g. `env PYENV_DEBUG=1 pyenv install -v 3.6.4`
+  * If the problem happens outside of a Pyenv invocation, get the debug log like this:
+     ```bash
+     # for Bash
+     export PS4='+(${BASH_SOURCE}:${LINENO}): ${FUNCNAME[0]:+${FUNCNAME[0]}(): }'
+     # for Zsh
+     export PS4='+(%x:%I): %N(%i): '
+
+     set -x
+     <reproduce the problem>
+     set +x
+     ```

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,24 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+**Describe the intended use case**
+* What your general environment is if it's relevant to the feature request and is not a generic console with a typical Pyenv installation (CI, server with a custom setup, cloud environment, IDE)
+* What you are trying to achieve
+* What specifically you are doing for that regarding Pyenv
+* Where you are stuck
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+[ ] In particular, did you consider [writing a plugin](https://github.com/pyenv/pyenv/blob/master/README.md#pyenv-plugins)? Note that if your plugin has general applicability, you can publish it in the 3rd-party plugin catalog on the Pyenv Wiki as per the link above.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.

.github/no-response.yml

@@ -0,0 +1,13 @@
+# Configuration for probot-no-response - https://github.com/probot/no-response
+
+# Number of days of inactivity before an Issue is closed for lack of response
+daysUntilClose: 30
+# Label requiring a response
+responseRequiredLabel: need-feedback
+# Comment to post when closing an Issue for lack of response. Set to `false` to disable
+closeComment: >
+  This issue has been automatically closed because there has been no response
+  to our request for more information from the original author. With only the
+  information that is currently in the issue, we don't have enough information
+  to take action. Please reach out if you have or find the answers we need so
+  that we can investigate further.

.github/workflows/tests.yml

@@ -0,0 +1,19 @@
+name: tests
+on: [pull_request, push]
+jobs:
+  tests:
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - ubuntu-22.04
+          - ubuntu-24.04
+          - macos-14
+          - macos-15
+          - macos-15-intel
+          - macos-26
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v2
+      - run: git clone https://github.com/bats-core/bats-core.git --depth=1 -b v1.10.0 bats
+      - run: bats/bin/bats --tap test

.gitignore

@@ -1,3 +1,4 @@
+/bats/
 /libexec/pyenv-virtualenv/*/*.class
 /libexec/pyenv-virtualenv/*/*.pyc
 /libexec/pyenv-virtualenv/*/*.pyo

.travis.yml

@@ -0,0 +1,14 @@
+sudo: false
+install: git clone --depth=1 https://github.com/sstephenson/bats.git
+script: bats/bin/bats --tap test
+language: c
+notifications:
+  email:
+    on_success: never
+deploy:
+  provider: releases
+  api_key:
+    secure: DsGAt0UmTSGVfsNJ6LmM+LvsV6FYmvX4FcET82XrskPiQW+N8+8JZR8WuZxfmwdJZu+dkkdoq6gYgL2xF7m4LxRG7aw3B5TtbMTrJQeW0hdtCSBwbbYyvwcp2m7ywE8lGAfZQITaGj1R6f2Cgh8cgtcrErjcF0KJsYlVlgNv+/M=
+  on:
+    repo: pyenv/pyenv-virtualenv
+    tags: true

CHANGELOG.md

@@ -0,0 +1,272 @@
+## Version History
+
+## v1.4.0
+* Fix POSIX sh (dash) compatibility in pyenv-virtualenv-init by @chrisolof in https://github.com/pyenv/pyenv-virtualenv/pull/526
+* Improve performance and output of `pyenv virtualenvs` by @samdoran in https://github.com/pyenv/pyenv-virtualenv/pull/502
+
+## v1.3.0
+* CI: cleanup by @native-api in https://github.com/pyenv/pyenv-virtualenv/pull/521
+* CI: tests: use Bats 1.10; support concurrent, out-of-order and multiple-times execution of stub commands; fix race condition between concurrent stubs by @native-api in https://github.com/pyenv/pyenv-virtualenv/pull/520
+* Drastically speed up precommand hook by caching active version to skip redundant `activate` calls by @jakelodwick in https://github.com/pyenv/pyenv-virtualenv/pull/523
+
+## v1.2.6
+* Fix changelog and version numbers
+
+## v1.2.5
+* Add prompt customization by @jimenezj8 in https://github.com/pyenv/pyenv-virtualenv/pull/476
+* README: fix and distinguish syntax highlighting in Bash vs Fish snippets by @diericx in https://github.com/pyenv/pyenv-virtualenv/pull/489
+* Fix pyenv-virtualenv using a different Python version in a conda environment by @native-api in https://github.com/pyenv/pyenv-virtualenv/pull/492
+* Fix confusing activate/deactivate error messages when Pyenv is not installed as a shell function by @native-api in https://github.com/pyenv/pyenv-virtualenv/pull/495
+* Fix errorneously creating a symlink inside env directory if running w… by @native-api in https://github.com/pyenv/pyenv-virtualenv/pull/496
+* Update LICENSE, fix copyright license year by @JasonnnW3000 in https://github.com/pyenv/pyenv-virtualenv/pull/499
+* docs: add WSL note about core.autocrlf to prevent CRLF issues by @stoneHee99 in https://github.com/pyenv/pyenv-virtualenv/pull/512
+* docs: fix the link to Pyenv shell setup steps by @cshen-dev in https://github.com/pyenv/pyenv-virtualenv/pull/516
+* Convert issue template to new Github format by @native-api in https://github.com/pyenv/pyenv-virtualenv/pull/519
+* Prevent loss of data on `virtualenv-delete -f` if the env doesn't exist and the PREFIX envvar is set elsewhere by @SabriRamadanTNG in https://github.com/pyenv/pyenv-virtualenv/pull/518
+
+## v1.2.4
+* Fix failing to detect `-m venv` when "python" is not provided by the distro by @native-api in https://github.com/pyenv/pyenv-virtualenv/pull/479
+* README: Remove dollar signs from commands that are meant to be copied by @galonsky in https://github.com/pyenv/pyenv-virtualenv/pull/481
+* Reflect pyenv-latest switch change in 2.4.8 by @native-api in https://github.com/pyenv/pyenv-virtualenv/pull/484
+
+## v1.2.3
+* Fix: add `colorize` helper by @silverjam in https://github.com/pyenv/pyenv-virtualenv/pull/470
+* Bump pyenv-virtualenv reporting version to match release by @ushuz in https://github.com/pyenv/pyenv-virtualenv/pull/471
+* Add fish prompt changing by @romirk in https://github.com/pyenv/pyenv-virtualenv/pull/475
+* Don't activate if a 3rd-party venv is activated over ours by @native-api in https://github.com/pyenv/pyenv-virtualenv/pull/478
+
+## v1.2.2
+* Prompt removal was never done and is not planned anymore by @native-api in https://github.com/pyenv/pyenv-virtualenv/pull/447
+* Update PYENV_VIRTUALENV_VERSION by @jack-mcivor in https://github.com/pyenv/pyenv-virtualenv/pull/449
+* Add activate/deactivate hooks by @joshfrench in https://github.com/pyenv/pyenv-virtualenv/pull/452
+* More helpful error message when requesting a nonexistent base version by @MarcinKonowalczyk in https://github.com/pyenv/pyenv-virtualenv/pull/454
+* Add fish install oneliner by @ElijahLynn in https://github.com/pyenv/pyenv-virtualenv/pull/322
+* Link python*-config into VE by @native-api in https://github.com/pyenv/pyenv-virtualenv/pull/460
+
+## v1.2.1
+* Support prefixes resolved by pyenv-latest as base version names by @native-api in https://github.com/pyenv/pyenv-virtualenv/pull/446
+
+## v1.2.0
+* ~/.*rc should be modified instead of ~/.*profile by @native-api in https://github.com/pyenv/pyenv-virtualenv/pull/384
+* Fixes #394 - update pyenv virtualenvs to list virtualenvs start with dot prefixes by @Gauravtalreja1 in https://github.com/pyenv/pyenv-virtualenv/pull/395
+* Fix installation steps to allow for Pyenv 2 by @native-api in https://github.com/pyenv/pyenv-virtualenv/pull/388
+* Fix get-pip.py URLs for older versions of Python by @jivanf in https://github.com/pyenv/pyenv-virtualenv/pull/403
+* Add (y/N) prompt help text by @sh-cho in https://github.com/pyenv/pyenv-virtualenv/pull/404
+* perf(sh-activate): avoid a pyenv-version-name call by @scop in https://github.com/pyenv/pyenv-virtualenv/pull/380
+* Fix unbound variable errors when running `pyenv activate` with `set -u` Use default empty value. This fixes #422. by @ackalker in https://github.com/pyenv/pyenv-virtualenv/pull/423
+* Fix another unbound variable error by @ackalker in https://github.com/pyenv/pyenv-virtualenv/pull/424
+* Update `get-pip.py` URLs in `pyenv-virtualenv` by @mcdonnnj in https://github.com/pyenv/pyenv-virtualenv/pull/426
+* Deduplicate shims in $PATH for the fish shell during initialization by @ericvw in https://github.com/pyenv/pyenv-virtualenv/pull/430
+* Upgrade uninstall hook after pyenv/pyenv#2432 by @laggardkernel in https://github.com/pyenv/pyenv-virtualenv/pull/438
+* Stop delete force failing when virtualenv does not exist by @eganjs in https://github.com/pyenv/pyenv-virtualenv/pull/330
+* fix: relative path to pyenv-realpath.dylib by @scop in https://github.com/pyenv/pyenv-virtualenv/pull/378
+* Spelling fixes by @scop in https://github.com/pyenv/pyenv-virtualenv/pull/352
+* Clone bats with --depth=1, gitignore it by @scop in https://github.com/pyenv/pyenv-virtualenv/pull/351
+* set -u fixes by @scop in https://github.com/pyenv/pyenv-virtualenv/pull/350
+* Set up Github Actions CI by @native-api in https://github.com/pyenv/pyenv-virtualenv/pull/440
+* Enhance documentation about options for `pyenv virtualenv` by @pylipp in https://github.com/pyenv/pyenv-virtualenv/pull/425
+* Return control to pyenv-uninstall in uninstall/envs.bash by @aiguofer in https://github.com/pyenv/pyenv-virtualenv/pull/321
+* Use realpath of scripts to determine relative locations by @andrew-christianson in https://github.com/pyenv/pyenv-virtualenv/pull/308
+* Shell detect improvements by @scop in https://github.com/pyenv/pyenv-virtualenv/pull/377
+
+## v1.1.5
+
+* Fix install script (#290, #302)
+
+## v1.1.4
+
+* Support newer conda (#290)
+* Prefer `python3.x` executable if available (#206, #282, #296)
+
+## v1.1.3
+
+* No code changes since 1.1.2
+
+## v1.1.2
+
+* Use custom get-pip URL based on the target version (#253, #254, #255)
+* Source conda 4.4.4 shell files (#251)
+* Evaluate force flag before testing if venv exists (#232)
+
+## v1.1.1
+
+* Set `CONDA_PREFIX` to make is useable in conda activate/deactivate scripts (#224)
+* Generate `pydoc` executable after creating new virtualenv (#197, #230)
+
+## v1.1.0
+
+* fish: use "set -gx" instead of "setenv" (#215, #216, #217, #218)
+
+## v1.0.0
+
+* Use similar versioning scheme as pyenv; YYYYMMDD -> X.Y.Z
+
+## v20160716
+
+* Suppress activate/deactivate messages by default (#169, #170, #171)
+* Source conda package activate/deactivat scripts if exist (#173)
+* Use `source` in favor of `.` for `fish` (#175)
+* Use `python -m venv` instead of `pyvenv` due to deprecation of `pyvenv` after 3.6 (#184, #185)
+
+## v20160315
+
+* Evaluate `${PATH}` when outputted code is eval'd. (#154)
+* Set proper `CONDA_DEFAULT_ENV` for shorter name (#160)
+
+## v20160202
+
+* Install virtualenv 13.1.2 for CPython/Stackless 3.2.x (yyuu/pyenv#531)
+
+## v20160112
+
+* Fix problem with `virtualenv` to look up executables from source version with `--system-site-packages` (#62)
+
+## v20151229
+
+* Fix `deactivate` error on `fish` (#136)
+
+## v20151222
+
+* Improved interoperability with Anaconda/Miniconda (#103, #106, #107, #108)
+* Create `virtualenv` inside `envs` directory of source version, like Anaconda/Miniconda (#103, #107)
+* Rewrite `pyenv activate` and `pyenv deactivate` without using scripts provided by virtualenv and conda (#51, #69, #103, #104, #121)
+* Improve the `pyenv activate` behaviour on multiple versions (#105, #111)
+* Reject creating a virtualenv named `system` (yyuu/pyenv#475)
+* Add `--skip-aliases` to `pyenv virtualenvs` (#120)
+* Stop showing `version not installed` warning messages in precmd (#49)
+
+## v20151103
+
+* Passing return value from executed command. (#100)
+* Add workaround for commands installed in a virtual environment created by `pyvenv` (#62)
+* init: zsh: prepend hook to `precmd_functions` (#101)
+
+## v20151006
+
+* Ignore user's site-packages on ensurepip/get-pip (#89)
+* Find `python-config` from source version if current version is a virtualenv
+* Fix pyenv-virtualenv-init script for fish where command was in string and not being evaluated (#98)
+* Add foolproof for `-p` argument. (yyuu/pyenv#98)
+
+## v20150719
+
+* Add support for `conda` environments created by Anaconda/Miniconda (#91)
+* Look up commands for original version as well if the environment is created with `--system-site-packages` (#62)
+* Add error message if the source version is not installed (#83)
+
+## v20150526
+
+* Use `typeset -g` with `precmd_functions` (#75)
+* activate: display setup instructions only with `PYENV_VIRTUALENV_INIT=0` (#78)
+* Ignore failure of pyenv activate (#68)
+
+## v20150119
+
+ * Ignore errors from `pyenv-version-name` since it might fail if there is configuration error (yyuu/pyenv#291)
+ * The _shell_ version set in `activate` should be unset in `deactivate` (#61)
+ * Anaconda has `activate` script nevertheless it is not a virtual environment (#65)
+
+## v20141106
+
+ * Stop creating after `ensurepip` since it has done by `ensurepip` itself
+ * Suppress some useless warnings from `pyenv virtualenv-init`
+
+## v20141012
+
+ * Fix warnings from `shellcheck` to improve support for POSIX sh (#40)
+ * Do not allow whitespace in `VIRTUALENV_NAME` (#44)
+ * Should not persist `PYENV_DEACTIVATE` after automatic deactivation (#47, #48)
+
+## v20140705
+
+ * Display information on auto-(de)?activation
+ * Support manual (de)?activation with auto-activation enabled (#32, #34)
+ * Exit as error when (de)?activation failed
+ * Use https://bootstrap.pypa.io/ to install setuptools and pip
+ * Create backup of original virtualenv within `$(pyenv root)/versions` when `--upgrade`
+
+## v20140615
+
+ * Fix incompatibility issue of `pyenv activate` and `pyenv deactivate` (#26)
+ * Workaround for the issue with pyenv-which-ext (#26)
+
+## v20140614
+
+ * Add `pyenv virtualenv-init` to enable auto-activation feature (#24)
+ * Create symlinks for executables with version suffix (yyuu/pyenv#182)
+
+## v20140602
+
+ * Use new style GH raw url to avoid redirects (raw.github.com -> raw.githubusercontent.com)
+ * Repaired virtualenv activation and deactivation for the fish shell (#23)
+
+## v20140421
+
+ * Display error if `pyenv activate` was invoked as a command
+ * Fix completion of `pyenv activate` (#15)
+ * Use `virtualenv` instead of `pyvenv` if `-p` has given (yyuu/pyenv#158)
+
+## v20140123
+
+ * Add `activate` and `deactivate` to make `pyenv-virtualenv` work with [jedi](https://github.com/davidhalter/jedi) (#9)
+ * Use `ensurepip` to install `pip` if it is available
+ * Unset `PIP_REQUIRE_VENV` to avoid problem on the installation of `virtualenv` (#10)
+ * Add tests
+
+## v20140110.1
+
+ * Fix install script
+
+## v20140110
+
+ * Support environment variables of `EZ_SETUP` and `GET_PIP`.
+ * Support a short option `-p` of `virtualenv`.
+
+## v20131216
+
+ * Use latest release of setuptools and pip if the version not given via environment variables.
+
+## v20130622
+
+ * Removed bundled `virtualenv.py` script. Now pyenv-virtualenv installs `virtualenv` package into source version and then use it.
+ * On Python 3.3+, use `pyvenv` as virtualenv command if `virtualenv` is not available.
+ * Install setuptools and pip into environments created by `pyvenv`.
+
+## v20130614
+
+ * Add `pyenv virtualenvs` to list all virtualenv versions.
+ * *EXPERIMENTAL*: Add `--upgrade` option to re-create virtualenv with migrating packages
+
+## v20130527
+
+ * Remove `python-virtualenv` which was no longer used.
+ * Change the installation path of the `virtualenv.py` script. (`./libexec` -> `./libexec/pyenv-virtualenv/${VIRTUALENV_VERSION}`)
+ * Download `virtualenv.py` if desired version has not been installed.
+
+## v20130507
+
+ * Display virtualenv information in `--help` and `--version`
+ * Update virtualenv version; 1.8.4 -> 1.9.1
+
+## v20130307
+
+ * Rename the project; `s/python-virtualenv/pyenv-virtualenv/g`
+ * The `pyenv-virtualenv` script is not depending on `python-virtualenv` now.
+   `python-virtualenv` will left for compatibility and will not continue for future releases.
+ * Update virtualenv version; 1.8.2 -> 1.8.4
+
+## v20130218
+
+ * Add pyenv 0.2.x (rbenv 0.4.x) style help messages.
+
+## v20121023
+
+ * Create virtualenv with exact name of python executables.
+ * Changed command-line options of python-virtualenv.
+   First argument should be a path to the python executable.
+ * Add install script.
+
+## v20120927
+
+ * Initial public release.
+

LICENSE

@@ -1,4 +1,4 @@
-Copyright (c) 2013 Yamashita, Yuu
+Copyright (c) 2025 Yamashita, Yuu
 
 Permission is hereby granted, free of charge, to any person obtaining
 a copy of this software and associated documentation files (the

MAINTENANCE.md

@@ -0,0 +1,15 @@
+Creating a release
+==================
+
+The release of the new version of Pyenv is done via GitHub Releases.
+
+Release checklist:
+* Start [drafting a new release on GitHub](https://github.com/pyenv/pyenv-virtualenv/releases) to generate a summary of changes. Save the summary locally.
+  * The summary may need editing. E.g. rephrase entries, delete/merge entries that are too minor or irrelevant to the users (e.g. typo fixes, CI)
+* Push the version number in `bin/pyenv-virtualenv`
+  * Minor version is pushed if there are significant functional changes (not e.g. bugfixes/formula adaptations/supporting niche use cases).
+  * Major version is pushed if there are breaking changes
+* Update `CHANGELOG.md` with the new version number and the edited summary (only the changes section), reformatting it like the rest of the changelog sections
+* Commit the changes locally into `master`
+* Create a new tag with the new version number and push the changes including the tag
+* Create a new release on GitHub based on the tag, using the saved summary

README.md

@@ -1,145 +1,266 @@
-# pyenv-virtualenv (a.k.a. [python-virtualenv](https://github.com/yyuu/python-virtualenv))
+# pyenv-virtualenv
 
-pyenv-virtualenv is a [pyenv](https://github.com/yyuu/pyenv) plugin
-that provides a `pyenv virtualenv` command to create virtualenv for Python
-on UNIX-like systems.
+[![Join the chat at https://gitter.im/yyuu/pyenv-virtualenv](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/yyuu/pyenv-virtualenv?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+
+[![Build Status](https://travis-ci.org/pyenv/pyenv-virtualenv.svg?branch=master)](https://travis-ci.org/pyenv/pyenv-virtualenv)
+
+pyenv-virtualenv is a [pyenv](https://github.com/pyenv/pyenv) plugin
+that provides features to manage virtualenvs and conda environments
+for Python on UNIX-like systems.
 
 (NOTICE: If you are an existing user of [virtualenvwrapper](http://pypi.python.org/pypi/virtualenvwrapper)
-and you love it, [pyenv-virtualenvwrapper](https://github.com/yyuu/pyenv-virtualenvwrapper) may help you
-to manage your virtualenvs.)
+and you love it, [pyenv-virtualenvwrapper](https://github.com/pyenv/pyenv-virtualenvwrapper) may help you
+(additionally) to manage your virtualenvs.)
 
 ## Installation
 
 ### Installing as a pyenv plugin
 
-Installing pyenv-virtualenv as a pyenv plugin will give you access to the
-`pyenv virtualenv` command.
-
-    $ git clone git://github.com/yyuu/pyenv-virtualenv.git ~/.pyenv/plugins/pyenv-virtualenv
-
 This will install the latest development version of pyenv-virtualenv into
-the `~/.pyenv/plugins/pyenv-virtualenv` directory. From that directory, you
-can check out a specific release tag. To update pyenv-virtualenv, run `git
-pull` to download the latest changes.
+the `$(pyenv root)/plugins/pyenv-virtualenv` directory.
 
-### Installing with Homebrew (for OS X users)
+**Important note:**  If you installed pyenv into a non-standard directory, make
+sure that you clone this repo into the 'plugins' directory of wherever you
+installed into.
 
-Mac OS X users can install pyenv-virtualenv with the
-[Homebrew](http://brew.sh) package manager. This
-will give you access to the `pyenv-virtualenv` command. If you have pyenv
+From inside that directory you can:
+ - Check out a specific release tag.
+ - Get the latest development release by running `git pull` to download the
+   latest changes.
+
+💡 **WSL note:** If you're using WSL, we recommend setting Git to use Unix-style line endings to prevent script execution errors:
+
+```sh
+git config --global core.autocrlf input
+```
+
+1. **Check out pyenv-virtualenv into plugin directory**
+
+    ```bash
+    git clone https://github.com/pyenv/pyenv-virtualenv.git $(pyenv root)/plugins/pyenv-virtualenv
+    ```
+
+    For the Fish shell:
+
+    ```fish
+    git clone https://github.com/pyenv/pyenv-virtualenv.git (pyenv root)/plugins/pyenv-virtualenv
+    ```
+
+2. (OPTIONAL) **Add `pyenv virtualenv-init` to your shell** to enable auto-activation of virtualenvs. This is entirely optional but pretty useful. See "Activate virtualenv" below.
+
+    ```bash
+    echo 'eval "$(pyenv virtualenv-init -)"' >> ~/.bashrc
+    ```
+
+    **Fish shell note**:  Add this to your `~/.config/fish/config.fish`
+
+    ```fish
+    status --is-interactive; and pyenv virtualenv-init - | source
+    ```
+
+    **Zsh note**: Modify your `~/.zshrc` file instead of `~/.bashrc`.
+    
+3. **Restart your shell to enable pyenv-virtualenv**
+
+    ```bash
+    exec "$SHELL"
+    ```
+
+
+### Installing with Homebrew (for macOS users)
+
+macOS users can install pyenv-virtualenv with the
+[Homebrew](https://brew.sh) package manager.
+This will give you access to the `pyenv-virtualenv` command. If you have pyenv
 installed, you will also be able to use the `pyenv virtualenv` command.
 
-*This is recommended method of installation if you installed pyenv
+*This is the recommended method of installation if you installed pyenv
  with Homebrew.*
 
-    brew install pyenv-virtualenv
+```sh
+brew install pyenv-virtualenv
+```
 
 Or, if you would like to install the latest development release:
 
-    brew install --HEAD pyenv-virtualenv
+```sh
+brew install --HEAD pyenv-virtualenv
+```
+
+After installation, you'll still need to do
+[Pyenv shell setup steps](https://github.com/pyenv/pyenv#b-set-up-your-shell-environment-for-pyenv)
+then add 
+```sh
+eval "$(pyenv virtualenv-init -)"
+```
+to your shell's `.rc` file (as stated in the caveats). You'll only ever have to do this once.
 
 
 ## Usage
 
 ### Using `pyenv virtualenv` with pyenv
 
-To create a virtualenv for the Python version use with pyenv, run
-`pyenv virtualenv` with tha exact name of the version you want to create
-virtualenv. For example,
+To create a virtualenv for the Python version used with pyenv, run
+`pyenv virtualenv`, specifying the Python version you want and the name
+of the virtualenv directory. For example,
 
-    $ pyenv virtualenv 2.7.5 venv27
+```sh
+pyenv virtualenv 2.7.10 my-virtual-env-2.7.10
+```
 
-virtualenvs will be created into a directory of the same name
-under `~/.pyenv/versions`.
+will create a virtualenv based on Python 2.7.10 under `$(pyenv root)/versions` in a
+folder called `my-virtual-env-2.7.10`.
 
+`pyenv virtualenv` forwards any options to the underlying command that actually
+creates the virtual environment (`conda`, `virtualenv`, or `python -m venv`).
+See the output of `pyenv virtualenv --help` for details.
 
 ### Create virtualenv from current version
 
-If there is only one argument is given to `pyenv virtualenv`,
-virtualenv will be created with given name based on current
-version.
+If there is only one argument given to `pyenv virtualenv`, the virtualenv will
+be created with the given name based on the current pyenv Python version.
 
-    $ pyenv version
-    3.3.2 (set by /home/yyuu/.pyenv/version)
-    $ pyenv virtualenv venv33
+```sh
+$ pyenv version
+3.4.3 (set by /home/yyuu/.pyenv/version)
+$ pyenv virtualenv venv34
+```
 
 
 ### List existing virtualenvs
 
-`pyenv virtualenvs` shows you the list of existing virtualenvs.
+`pyenv virtualenvs` shows you the list of existing virtualenvs and `conda` environments.
 
-    $ pyenv shell venv27
-    $ pyenv virtualenvs
-    * venv27 (created from /home/yyuu/.pyenv/versions/2.7.5)
-      venv33 (created from /home/yyuu/.pyenv/versions/3.3.2)
+```sh
+$ pyenv shell venv34
+$ pyenv virtualenvs
+  miniconda3-3.9.1 (created from /home/yyuu/.pyenv/versions/miniconda3-3.9.1)
+  miniconda3-3.9.1/envs/myenv (created from /home/yyuu/.pyenv/versions/miniconda3-3.9.1)
+  2.7.10/envs/my-virtual-env-2.7.10 (created from /home/yyuu/.pyenv/versions/2.7.10)
+  3.4.3/envs/venv34 (created from /home/yyuu/.pyenv/versions/3.4.3)
+  my-virtual-env-2.7.10 (created from /home/yyuu/.pyenv/versions/2.7.10)
+* venv34 (created from /home/yyuu/.pyenv/versions/3.4.3)
+```
+
+There are two entries for each virtualenv, and the shorter one is just a symlink.
+
+
+### Activate virtualenv
+
+Some external tools (e.g. [jedi](https://github.com/davidhalter/jedi)) might
+require you to `activate` the virtualenv and `conda` environments.
+
+If `eval "$(pyenv virtualenv-init -)"` is configured in your shell, `pyenv-virtualenv` will automatically activate/deactivate virtualenvs on entering/leaving directories which contain a `.python-version` file that contains the name of a valid virtual environment as shown in the output of `pyenv virtualenvs` (e.g., `venv34` or `3.4.3/envs/venv34` in example above) . `.python-version` files are used by pyenv to denote local Python versions and can be created and deleted with the [`pyenv local`](https://github.com/pyenv/pyenv/blob/master/COMMANDS.md#pyenv-local) command.
+
+You can also activate and deactivate a pyenv virtualenv manually:
+
+```sh
+pyenv activate <name>
+pyenv deactivate
+```
+
+
+### Delete existing virtualenv
+
+Removing the directories in `$(pyenv root)/versions` and `$(pyenv root)/versions/{version}/envs` will delete the virtualenv, or you can run:
+
+```sh
+pyenv uninstall my-virtual-env
+```
+
+You can also delete existing virtualenvs by using `virtualenv-delete` command, e.g. you can run:
+```sh
+pyenv virtualenv-delete my-virtual-env
+```
+This will delete virtualenv called `my-virtual-env`.
+
+
+### virtualenv and venv
+
+There is a [venv](http://docs.python.org/3/library/venv.html) module available
+for CPython 3.3 and newer.
+It provides an executable module `venv` which is the successor of `virtualenv`
+and distributed by default.
+
+`pyenv-virtualenv` uses `python -m venv` if it is available and the `virtualenv`
+command is not available.
+
+
+### Anaconda and Miniconda
+
+You can manage `conda` environments by `conda create` as same manner as standard Anaconda/Miniconda installations.
+To use those environments, you can use `pyenv activate` and `pyenv deactivate`.
+
+```sh
+$ pyenv version
+miniconda3-3.9.1 (set by /home/yyuu/.pyenv/version)
+$ conda env list
+# conda environments:
+#
+myenv                    /home/yyuu/.pyenv/versions/miniconda3-3.9.1/envs/myenv
+root                  *  /home/yyuu/.pyenv/versions/miniconda3-3.9.1
+$ pyenv activate miniconda3-3.9.1/envs/myenv
+discarding /home/yyuu/.pyenv/versions/miniconda3-3.9.1/bin from PATH
+prepending /home/yyuu/.pyenv/versions/miniconda3-3.9.1/envs/myenv/bin to PATH
+$ python --version
+Python 3.4.3 :: Continuum Analytics, Inc.
+$ pyenv deactivate
+discarding /home/yyuu/.pyenv/versions/miniconda3-3.9.1/envs/myenv/bin from PATH
+```
+
+If `conda` is available, `pyenv virtualenv` will use it to create environment by `conda create`.
+
+```sh
+$ pyenv version
+miniconda3-3.9.1 (set by /home/yyuu/.pyenv/version)
+$ pyenv virtualenv myenv2
+$ conda env list
+# conda environments:
+#
+myenv                    /home/yyuu/.pyenv/versions/miniconda3-3.9.1/envs/myenv
+myenv                    /home/yyuu/.pyenv/versions/miniconda3-3.9.1/envs/myenv2
+root                  *  /home/yyuu/.pyenv/versions/miniconda3-3.9.1
+```
+
+You can use version like `miniconda3-3.9.1/envs/myenv` to specify `conda` environment as a version in pyenv.
+
+```sh
+$ pyenv version
+miniconda3-3.9.1 (set by /home/yyuu/.pyenv/version)
+$ pyenv shell miniconda3-3.9.1/envs/myenv
+$ which python
+/home/yyuu/.pyenv/versions/miniconda3-3.9.1/envs/myenv/bin/python
+```
 
 
 ### Special environment variables
 
-You can set certain environment variables to control the pyenv-virtualenv.
+You can set certain environment variables to control pyenv-virtualenv.
 
 * `PYENV_VIRTUALENV_CACHE_PATH`, if set, specifies a directory to use for
   caching downloaded package files.
-* `VIRTUALENV_VERSION`, if set, forces pyenv-virtualenv to install desired
-  version of virtualenv. If the virtualenv has not been installed,
+* `VIRTUALENV_VERSION`, if set, forces pyenv-virtualenv to install the desired
+  version of virtualenv. If `virtualenv` has not been installed,
   pyenv-virtualenv will try to install the given version of virtualenv.
-* `EZ_SETUP_URL` and `GET_PIP_URL`, if set and pyvenv is preferred
-  than virtualenv, download `ez_setup.py` and `get_pip.py` from specified URL.
-* `SETUPTOOLS_VERSION` and `PIP_VERSION`, if set and pyvenv is preferred
-  than virtualenv, install specified version of setuptools and pip.
-
+* `GET_PIP`, if set and `venv` is preferred over `virtualenv`,
+  use `get_pip.py` from the specified location.
+* `GET_PIP_URL`, if set and `venv` is preferred over
+  `virtualenv`, download `get_pip.py` from the specified URL.
+* `PIP_VERSION`, if set and `venv` is preferred
+  over `virtualenv`, install the specified version of pip.
+* `PYENV_VIRTUALENV_VERBOSE_ACTIVATE`, if set, shows some verbose outputs on activation and deactivation
+* `PYENV_VIRTUALENV_PROMPT`, if set, allows users to customize how `pyenv-virtualenv` modifies their shell prompt. The default prompt ("(venv)") is overwritten with any user-specified text. Specify the location of the virtual environment name with the string `{venv}`. For example, the default prompt string would be `({venv})`.
 
 ## Version History
 
-#### 20130622
+See [CHANGELOG.md](CHANGELOG.md).
 
- * Removed bundled `virtualenv.py` script. Now pyenv-virtualenv installs `virtualenv` package into source version and then use it.
- * On Python 3.3+, use `pyvenv` as virtualenv command if `virtualenv` is not available.
- * Install setuptools and pip into environments created by `pyvenv`.
-
-#### 20130614
-
- * Add `pyenv virtualenvs` to list all virtualenv versions.
- * *EXPERIMENTAL*: Add `--upgrade` option to re-create virtualenv with migrating packages
-
-#### 20130527
-
- * Remove `python-virtualenv` which was no longer used.
- * Change the installation path of the `virtualenv.py` script. (`./libexec` -> `./libexec/pyenv-virtualenv/${VIRTUALENV_VERSION}`)
- * Download `virtualenv.py` if desired version has not been installed.
-
-#### 20130507
-
- * Display virtualenv information in `--help` and `--version`
- * Update virtualenv version; 1.8.4 -> 1.9.1
-
-#### 20130307
-
- * Rename the project; `s/python-virtualenv/pyenv-virtualenv/g`
- * The `pyenv-virtualenv` script is not depending on `python-virtualenv` now.
-   `python-virtualenv` will left for compatibility and will not continue for future releases.
- * Update virtualenv version; 1.8.2 -> 1.8.4
-
-#### 20130218
-
- * Add pyenv 0.2.x (rbenv 0.4.x) style help messages.
-
-#### 20121023
-
- * Create virtualenv with exact name of python executables.
- * Changed command-line options of python-virtualenv.
-   First argument should be a path to the python executable.
- * Add install script.
-
-#### 20120927
-
- * Initial public release.
 
 ### License
 
-(The MIT License)
+[(The MIT License)](LICENSE)
 
-* Copyright (c) 2013 Yamashita, Yuu
+* Copyright (c) 2015 Yamashita, Yuu
 
 Permission is hereby granted, free of charge, to any person obtaining
 a copy of this software and associated documentation files (the

bin/pyenv-activate

@@ -0,0 +1,30 @@
+#!/usr/bin/env bash
+#
+# Summary: Activate virtual environment
+#
+# Usage: pyenv activate <virtualenv>
+#        pyenv activate --unset
+#
+# Activate a Python virtualenv environment in current shell.
+# This acts almost as same as `pyenv shell`, but this invokes the `activate`
+# script in your shell.
+#
+# <virtualenv> should be a string matching a Python version known to pyenv.
+
+set -e
+[ -n "$PYENV_DEBUG" ] && set -x
+
+# Provide pyenv completions
+if [ "$1" = "--complete" ]; then
+  echo --unset
+  exec pyenv-virtualenvs --bare
+fi
+
+{ printf "\x1B[31;1m"
+  echo
+  echo "\`pyenv activate' requires Pyenv and Pyenv-Virtualenv to be loaded into your shell."
+  echo "Check your shell configuration and Pyenv and Pyenv-Virtualenv installation instructions."
+  echo
+  printf "\x1B[0m"
+} 1>&2
+exit 1

bin/pyenv-deactivate

@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+#
+# Summary: Deactivate virtual environment
+#
+# Usage: pyenv deactivate
+#
+# Deactivate a Python virtual environment.
+
+set -e
+[ -n "$PYENV_DEBUG" ] && set -x
+
+{ printf "\x1B[31;1m"
+  echo
+  echo "\`pyenv deactivate' requires Pyenv and Pyenv-Virtualenv to be loaded into your shell."
+  echo "Check your shell configuration and Pyenv and Pyenv-Virtualenv installation instructions."
+  echo
+  printf "\x1B[0m"
+} 1>&2
+exit 1

bin/pyenv-sh-activate

@@ -0,0 +1,305 @@
+#!/usr/bin/env bash
+#
+# Summary: Activate virtual environment
+#
+# Usage: pyenv activate <virtualenv>
+#        pyenv activate --unset
+#
+# Activate a Python virtualenv environment in current shell.
+# This acts almost as same as `pyenv shell`, but this invokes the `activate`
+# script in your shell.
+#
+# <virtualenv> should be a string matching a Python version known to pyenv.
+
+set -e
+[ -n "$PYENV_DEBUG" ] && set -x
+
+if [ -z "${PYENV_ROOT}" ]; then
+  PYENV_ROOT="$(pyenv-root)"
+fi
+
+resolve_link() {
+  $(type -p greadlink readlink | head -1) "$1"
+}
+
+unset FORCE
+unset QUIET
+
+# Define `before_activate` and `after_activate` functions that allow
+# plugin hooks to register a string of code for execution before or
+# after activating a virtualenv.
+declare -a before_hooks after_hooks
+
+before_activate() {
+  local hook="$1"
+  before_hooks["${#before_hooks[@]}"]="$hook"
+}
+
+after_activate() {
+  local hook="$1"
+  after_hooks["${#after_hooks[@]}"]="$hook"
+}
+
+# Load plugin hooks.
+OLDIFS="$IFS"
+IFS=$'\n' scripts=(`pyenv-hooks activate`)
+IFS="$OLDIFS"
+for script in "${scripts[@]}"; do source "$script"; done
+
+while [ $# -gt 0 ]; do
+  case "$1" in
+  "--complete" )
+    # Provide pyenv completions
+    echo --unset
+    exec pyenv-virtualenvs --bare
+    ;;
+  "-f" | "--force" )
+    FORCE=1
+    ;;
+  "-q" | "--quiet" )
+    QUIET=1
+    ;;
+  "--unset" )
+    exec pyenv-sh-deactivate
+    ;;
+  "-v" | "--verbose" )
+    unset QUIET
+    PYENV_VIRTUALENV_VERBOSE_ACTIVATE=1
+    ;;
+  * )
+    break
+    ;;
+  esac
+  shift 1
+done
+
+get_current_versions() {
+  local IFS=:
+  current_versions=($(pyenv-version-name 2>/dev/null))
+}
+
+no_shell=
+versions=("$@")
+current_versions=()
+if [ -z "${versions}" ]; then
+  no_shell=1
+  get_current_versions
+  versions=("${current_versions[@]}")
+fi
+
+if [ -z "${PYENV_VIRTUALENV_INIT}" ]; then
+  # Backward compatibility issue
+  # https://github.com/yyuu/pyenv-virtualenv/issues/26
+  no_shell=
+fi
+
+venv="${versions}"
+
+if [ -n "${VIRTUAL_ENV}" ]; then
+  # exit as success if a non-pyenv virtualenv is active
+  if [[ -z $PYENV_VIRTUAL_ENV || $PYENV_VIRTUAL_ENV != "$VIRTUAL_ENV" ]]; then
+    if [ -z "${FORCE}" ]; then
+      if [ -z "${QUIET}" ]; then
+        echo "pyenv-virtualenv: virtualenv \`${VIRTUAL_ENV}' is already activated" 1>&2
+      fi
+      echo "true"
+      exit 0
+    fi
+  fi
+fi
+
+if ! pyenv-virtualenv-prefix "${venv}" 1>/dev/null 2>&1; then
+  # fallback to virtualenv of current version
+  [ -n "${current_versions}" ] || get_current_versions
+  new_venv="${current_versions%/envs/*}/envs/${venv}"
+  if pyenv-virtualenv-prefix "${new_venv}" 1>/dev/null 2>&1; then
+    venv="${new_venv}"
+    versions[0]="${new_venv}"
+  else
+    if [ -z "${QUIET}" ]; then
+      echo "pyenv-virtualenv: version \`${venv}' is not a virtualenv" 1>&2
+    fi
+    echo "false"
+    exit 1
+  fi
+fi
+
+# exit as error if there are multiple virtualenvs
+# https://github.com/yyuu/pyenv-virtualenv/issues/105
+for version in "${versions[@]}"; do
+  if [[ "${version}" != "${venv}" ]]; then
+    if pyenv-virtualenv-prefix "${version}" 1>/dev/null 2>&1; then
+      if [ -z "${QUIET}" ]; then
+        echo "pyenv-virtualenv: cannot activate multiple versions at once: ${versions[@]}" 1>&2
+      fi
+      echo "false"
+      exit 1
+    fi
+  fi
+done
+
+shell="${PYENV_SHELL:-${SHELL##*/}}"
+prefix="$(pyenv-prefix "${venv}")"
+
+if [ -L "${prefix}" ]; then
+  prefix="$(resolve_link "${prefix}" 2>/dev/null)"
+fi
+
+# exit as success if the virtualenv is already activated
+if [[ "${VIRTUAL_ENV}" == "${prefix}" ]]; then
+  if [ -z "${FORCE}" ]; then
+    if [ -z "${QUIET}" ]; then
+      echo "pyenv-virtualenv: version \`${venv}' is already activated" 1>&2
+    fi
+    echo "true"
+    exit 0
+  fi
+fi
+
+pyenv-sh-deactivate --force --quiet || true
+
+# Execute `before_activate` hooks.
+for hook in "${before_hooks[@]}"; do eval "$hook"; done
+
+if [ -n "$PYENV_VIRTUALENV_VERBOSE_ACTIVATE" ]; then
+  echo "pyenv-virtualenv: activate ${venv}" 1>&2
+fi
+
+if [ -z "$no_shell" ]; then
+  # shell version set in pyenv-sh-activate should be unset
+  # https://github.com/yyuu/pyenv-virtualenv/issues/61
+  OLDIFS="$IFS"
+  IFS=:
+  case "$shell" in
+  fish )
+    cat <<EOS
+set -gx PYENV_VERSION "${versions[*]}";
+set -gx PYENV_ACTIVATE_SHELL 1;
+EOS
+    ;;
+  * )
+    cat <<EOS
+export PYENV_VERSION="${versions[*]}";
+export PYENV_ACTIVATE_SHELL=1;
+EOS
+    ;;
+  esac
+  IFS="$OLDIFS"
+fi
+
+# virtualenv/venv
+case "${shell}" in
+fish )
+  cat <<EOS
+set -gx PYENV_VIRTUAL_ENV "${prefix}";
+set -gx VIRTUAL_ENV "${prefix}";
+EOS
+  ;;
+* )
+  cat <<EOS
+export PYENV_VIRTUAL_ENV="${prefix}";
+export VIRTUAL_ENV="${prefix}";
+EOS
+  ;;
+esac
+
+# anaconda/miniconda
+if [ -d "${prefix}/conda-meta" ] ||
+     [ -x "${prefix}/bin/conda" ]; then
+  if [[ "${prefix}" != "${prefix%/envs/*}" ]]; then
+    CONDA_DEFAULT_ENV="${venv##*/envs/}"
+  else
+    CONDA_DEFAULT_ENV="root"
+  fi
+  case "${shell}" in
+  fish )
+    echo "set -gx CONDA_DEFAULT_ENV \"${CONDA_DEFAULT_ENV}\";"
+    ;;
+  * )
+    echo "export CONDA_DEFAULT_ENV=\"${CONDA_DEFAULT_ENV}\";"
+    ;;
+  esac
+fi
+
+if [ -n "${PYTHONHOME}" ]; then
+  case "${shell}" in
+  fish )
+    cat <<EOS
+set -gx _OLD_VIRTUAL_PYTHONHOME "${PYTHONHOME}";
+set -e PYTHONHOME;
+EOS
+    ;;
+  * )
+    cat <<EOS
+export _OLD_VIRTUAL_PYTHONHOME="${PYTHONHOME}";
+unset PYTHONHOME;
+EOS
+    ;;
+  esac
+fi
+
+PYENV_VIRTUALENV_DISABLE_PROMPT="${PYENV_VIRTUALENV_DISABLE_PROMPT:-${PYENV_VIRTUAL_ENV_DISABLE_PROMPT}}"
+PYENV_VIRTUALENV_DISABLE_PROMPT="${PYENV_VIRTUALENV_DISABLE_PROMPT:-${VIRTUAL_ENV_DISABLE_PROMPT}}"
+
+if [ -z "${PYENV_VIRTUALENV_DISABLE_PROMPT}" ]; then
+  case "${shell}" in
+  fish )
+    if [ -z "${QUIET}" ]; then
+      cat <<EOS
+functions -e _pyenv_old_prompt              # remove old prompt function if exists. 
+                                            # since everything is in memory, it's safe to
+                                            # remove it.
+functions -c fish_prompt _pyenv_old_prompt  # backup old prompt function
+
+# from python-venv
+function fish_prompt
+    set -l prompt (_pyenv_old_prompt)       # call old prompt function first since it might 
+                                            # read exit status
+    echo -n "(${venv}) "                    # add virtualenv to prompt
+    string join -- \n \$prompt              # handle multiline prompts
+end
+EOS
+    fi
+    ;;
+  * )
+    if [ -z "${PYENV_VIRTUALENV_PROMPT}" ]; then
+      PYENV_VIRTUALENV_PROMPT="(${venv})"
+    else
+      PYENV_VIRTUALENV_PROMPT="${PYENV_VIRTUALENV_PROMPT/\{venv\}/${venv}}"
+    fi
+    cat <<EOS
+export _OLD_VIRTUAL_PS1="\${PS1:-}";
+export PS1="${PYENV_VIRTUALENV_PROMPT} \${PS1:-}";
+EOS
+    ;;
+  esac
+fi
+
+# conda package anaconda/miniconda scripts (#173)
+if [ -d "${prefix}/conda-meta" ] ||
+     [ -x "${prefix}/bin/conda" ]; then
+  shopt -s nullglob
+  case "${shell}" in
+  fish )
+    # conda 4.4 and above
+    for script in "${prefix}/etc/fish/conf.d"/*.fish; do
+      echo "source \"${script}\";"
+    done
+    ;;
+  * )
+    CONDA_PREFIX="$prefix"
+    echo "export CONDA_PREFIX=\"${CONDA_PREFIX}\";"
+    for script in "${prefix}/etc/conda/activate.d"/*.sh; do
+      echo ". \"${script}\";"
+    done
+    # conda 4.4 and above
+    for script in "${prefix}/etc/profile.d"/*.sh; do
+      echo ". \"${script}\";"
+    done
+    ;;
+  esac
+  shopt -u nullglob
+fi
+
+# Execute `after_activate` hooks.
+for hook in "${after_hooks[@]}"; do eval "$hook"; done

bin/pyenv-sh-deactivate

@@ -0,0 +1,228 @@
+#!/usr/bin/env bash
+#
+# Summary: Deactivate virtual environment
+#
+# Usage: pyenv deactivate
+#
+# Deactivate a Python virtual environment.
+
+set -e
+[ -n "$PYENV_DEBUG" ] && set -x
+
+if [ -z "${PYENV_ROOT}" ]; then
+  PYENV_ROOT="$(pyenv-root)"
+fi
+
+unset FORCE
+unset QUIET
+
+# Define `before_deactivate` and `after_deactivate` functions that allow
+# plugin hooks to register a string of code for execution before or
+# after deactivating a virtualenv.
+declare -a before_hooks after_hooks
+
+before_deactivate() {
+  local hook="$1"
+  before_hooks["${#before_hooks[@]}"]="$hook"
+}
+
+after_deactivate() {
+  local hook="$1"
+  after_hooks["${#after_hooks[@]}"]="$hook"
+}
+
+# Load plugin hooks.
+OLDIFS="$IFS"
+IFS=$'\n' scripts=(`pyenv-hooks deactivate`)
+IFS="$OLDIFS"
+for script in "${scripts[@]}"; do source "$script"; done
+
+while [ $# -gt 0 ]; do
+  case "$1" in
+  "-f" | "--force" )
+    FORCE=1
+    ;;
+  "-q" | "--quiet")
+    QUIET=1
+    ;;
+  "-v" | "--verbose" )
+    unset QUIET
+    PYENV_VIRTUALENV_VERBOSE_ACTIVATE=1
+    ;;
+  * )
+    break
+    ;;
+  esac
+  shift 1
+done
+
+if [ -z "${VIRTUAL_ENV}" ]; then
+  if [ -z "${FORCE}" ]; then
+    if [ -z "${QUIET}" ]; then
+      echo "pyenv-virtualenv: no virtualenv has been activated." 1>&2
+    fi
+    echo "false"
+    exit 1
+  fi
+fi
+
+shell="$(basename "${PYENV_SHELL:-$SHELL}")"
+prefix="${VIRTUAL_ENV}"
+
+if [[ "${prefix%/*/envs/*}" == "${PYENV_ROOT}/versions" ]]; then
+  venv="${prefix#${PYENV_ROOT}/versions/}"
+else
+  venv="${prefix##*/}"
+fi
+
+# Execute `before_deactivate` hooks.
+for hook in "${before_hooks[@]}"; do eval "$hook"; done
+
+if [ -n "$PYENV_VIRTUALENV_VERBOSE_ACTIVATE" ]; then
+  echo "pyenv-virtualenv: deactivate ${venv}" 1>&2
+fi
+
+# conda package anaconda/miniconda scripts (#173)
+if [ -d "${prefix}/conda-meta" ] ||
+     [ -x "${prefix}/bin/conda" ]; then
+  shopt -s nullglob
+  case "${shell}" in
+  fish )
+    : # conda doesn't support fish
+    ;;
+  * )
+    for script in "${prefix}/etc/conda/deactivate.d"/*.sh; do
+      echo ". \"${script}\";"
+    done
+    echo "unset CONDA_PREFIX"
+    ;;
+  esac
+  shopt -u nullglob
+fi
+
+if [ -n "${PYENV_ACTIVATE_SHELL}" ]; then
+  # shell version set in pyenv-sh-activate should be unset
+  # https://github.com/yyuu/pyenv-virtualenv/issues/61
+  case "$shell" in
+  fish )
+    cat <<EOS
+set -e PYENV_VERSION;
+set -e PYENV_ACTIVATE_SHELL;
+EOS
+    ;;
+  * )
+    cat <<EOS
+unset PYENV_VERSION;
+unset PYENV_ACTIVATE_SHELL;
+EOS
+    ;;
+  esac
+fi
+
+# virtualenv/venv
+case "${shell}" in
+fish )
+  cat <<EOS
+set -e PYENV_VIRTUAL_ENV;
+set -e VIRTUAL_ENV;
+EOS
+  ;;
+* )
+  cat <<EOS
+unset PYENV_VIRTUAL_ENV;
+unset VIRTUAL_ENV;
+EOS
+  ;;
+esac
+
+# anaconda/miniconda
+if [ -n "${CONDA_DEFAULT_ENV}" ]; then
+  case "${shell}" in
+  fish )
+    echo "set -e CONDA_DEFAULT_ENV;"
+    ;;
+  * )
+    echo "unset CONDA_DEFAULT_ENV;"
+    ;;
+  esac
+fi
+
+case "${shell}" in
+fish )
+  cat <<EOS
+if [ -n "\$_OLD_VIRTUAL_PATH" ];
+  set -gx PATH "\$_OLD_VIRTUAL_PATH";
+  set -e _OLD_VIRTUAL_PATH;
+end;
+EOS
+  ;;
+* )
+  cat <<EOS
+if [ -n "\${_OLD_VIRTUAL_PATH:-}" ]; then
+  export PATH="\${_OLD_VIRTUAL_PATH}";
+  unset _OLD_VIRTUAL_PATH;
+fi;
+EOS
+  ;;
+esac
+
+case "${shell}" in
+fish )
+  cat <<EOS
+if [ -n "\$_OLD_VIRTUAL_PYTHONHOME" ];
+  set -gx PYTHONHOME "\$_OLD_VIRTUAL_PYTHONHOME";
+  set -e _OLD_VIRTUAL_PYTHONHOME;
+end;
+EOS
+  ;;
+* )
+  cat <<EOS
+if [ -n "\${_OLD_VIRTUAL_PYTHONHOME:-}" ]; then
+  export PYTHONHOME="\${_OLD_VIRTUAL_PYTHONHOME}";
+  unset _OLD_VIRTUAL_PYTHONHOME;
+fi;
+EOS
+  ;;
+esac
+
+case "${shell}" in
+fish )
+  cat <<EOS
+# check if old prompt function exists
+if functions -q _pyenv_old_prompt
+  # remove old prompt function if exists.
+  functions -e fish_prompt
+  functions -c _pyenv_old_prompt fish_prompt
+  functions -e _pyenv_old_prompt
+end
+EOS
+  ;;
+* )
+  cat <<EOS
+if [ -n "\${_OLD_VIRTUAL_PS1:-}" ]; then
+  export PS1="\${_OLD_VIRTUAL_PS1}";
+  unset _OLD_VIRTUAL_PS1;
+fi;
+EOS
+  ;;
+esac
+
+case "${shell}" in
+fish )
+  cat <<EOS
+if functions -q deactivate;
+  functions -e deactivate;
+end;
+EOS
+  ;;
+* )
+  cat <<EOS
+if declare -f deactivate 1>/dev/null 2>&1; then
+  unset -f deactivate;
+fi;
+EOS
+  ;;
+esac
+
+# Execute `after_deactivate` hooks.
+for hook in "${after_hooks[@]}"; do eval "$hook"; done

bin/pyenv-virtualenv

@@ -2,29 +2,34 @@
 #
 # Summary: Create a Python virtualenv using the pyenv-virtualenv plugin
 #
-# Usage: pyenv virtualenv [-f|--force] [-u|--upgrade] [VIRTUALENV_OPTIONS] <version> <virtualenv-name>
+# Usage: pyenv virtualenv [-f|--force] [VIRTUALENV_OPTIONS] [version] <virtualenv-name>
 #        pyenv virtualenv --version
 #        pyenv virtualenv --help
 #
-#   -u/--upgrade     Upgrade existing virtualenv to use new version of Python,
-#                    assuming Python has been upgraded in-place.
-#   -f/--force       Install even if the version appears to be installed already
+#   -f/--force       Install even if the version appears to be installed already. Skip
+#                    prompting for confirmation
+#
+# Notable VIRTUALENV_OPTIONS passed to venv-creating executable, if applicable:
+#   -u/--upgrade     Imply --force
 #
 
-PYENV_VIRTUALENV_VERSION="20130622"
+PYENV_VIRTUALENV_VERSION="1.4.0"
 
 set -e
 [ -n "$PYENV_DEBUG" ] && set -x
 
-# Provide pyenv completions
-if [ "$1" = "--complete" ]; then
-  exec pyenv-versions --bare
+if [ -z "${PYENV_ROOT}" ]; then
+  PYENV_ROOT="$(pyenv-root)"
 fi
 
-if [ -z "$PYENV_ROOT" ]; then
-  PYENV_ROOT="${HOME}/.pyenv"
+# Provide pyenv completions
+if [ "$1" = "--complete" ]; then
+  exec pyenv-versions --bare --skip-envs
 fi
 
+unset PIP_REQUIRE_VENV
+unset PIP_REQUIRE_VIRTUALENV
+
 # Define library functions
 parse_options() {
   OPTIONS=()
@@ -49,6 +54,12 @@ parse_options() {
   done
 }
 
+colorize() {
+  if [ -t 1 ]; then printf "\e[%sm%s\e[m" "$1" "$2"
+  else echo -n "$2"
+  fi
+}
+
 resolve_link() {
   $(type -p greadlink readlink | head -1) "$1"
 }
@@ -100,31 +111,138 @@ http_get_wget() {
 }
 
 version() {
-  local version="$(venv --version 2>/dev/null || true)"
-  echo "pyenv-virtualenv ${PYENV_VIRTUALENV_VERSION} (virtualenv ${version:-unknown})"
+  if [[ -z "${PYENV_VERSION:-}" ]]; then
+    # `PYENV_VERSION` might not be declared if this was invoked via `--version`
+    export PYENV_VERSION="$(pyenv-version-name)"
+  fi
+  detect_venv
+  local version
+  if [ -n "${USE_CONDA}" ]; then
+    version="$(pyenv-exec conda --version 2>/dev/null || true)"
+    echo "pyenv-virtualenv ${PYENV_VIRTUALENV_VERSION} (conda ${version:-unknown})"
+  else
+    if [ -n "$USE_M_VENV" ]; then
+      echo "pyenv-virtualenv ${PYENV_VIRTUALENV_VERSION} (${M_VENV_PYTHON_BIN:-python} -m venv)"
+    else
+      version="$(pyenv-exec virtualenv --version 2>/dev/null || true)"
+      echo "pyenv-virtualenv ${PYENV_VIRTUALENV_VERSION} (virtualenv ${version:-unknown})"
+    fi
+  fi
 }
 
 usage() {
   # We can remove the sed fallback once pyenv 0.2.0 is widely available.
   pyenv-help virtualenv 2>/dev/null || sed -ne '/^#/!q;s/.//;s/.//;1,4d;p' < "$0"
-  venv --help 2>/dev/null || true
+  if [ -n "${USE_CONDA}" ]; then
+    pyenv-exec conda create --help 2>/dev/null || true
+  else
+    if [ -n "${USE_M_VENV}" ]; then
+      pyenv-exec "${M_VENV_PYTHON_BIN:-python}" -m venv --help 2>/dev/null || true
+    else
+      pyenv-exec virtualenv --help 2>/dev/null || true
+    fi
+  fi
   [ -z "$1" ] || exit "$1"
 }
 
-virtualenv_is_pyvenv() {
-  # Use pyvenv only if virtualenv is not installed and there is pyvenv
-  if pyenv-which "virtualenv" 1>/dev/null 2>&1; then
-    return 1
+detect_venv() {
+  # Check the existence of executables as a workaround for the issue with pyenv-which-ext
+  # https://github.com/yyuu/pyenv-virtualenv/issues/26
+  local prefix="$(pyenv-prefix)"
+  if [ -x "${prefix}/bin/conda" ]; then
+    HAS_CONDA=1
   else
-    pyenv-which "pyvenv" 1>/dev/null 2>&1
+    if [ -x "${prefix}/bin/virtualenv" ]; then
+      HAS_VIRTUALENV=1
+    fi
+    local python
+    local -a pythons
+    if [[ $PYENV_VERSION == "system" ]]; then
+      # Prefer `python3.x` executable if available (#206, #282)
+      pythons=("python3" "python" "python2")
+    else
+      # as per PEP 394, custom activated Python environments should provide the "python" command
+      # this includes Pyenv-provided installations
+      pythons=("python")
+    fi
+    for python in "${pythons[@]}"; do
+      if pyenv-exec "${python}" -m venv --help 1>/dev/null 2>&1; then
+        HAS_M_VENV=1
+        M_VENV_PYTHON_BIN="${python}"
+        break
+      fi
+    done
+  fi
+  # Use `python -m venv` only if there is venv available, virtualenv is not installed, and `-p` not given
+  if [ -n "${HAS_CONDA}" ]; then
+    USE_CONDA=1
+  else
+    if [ -n "${HAS_M_VENV}" ] && [ -z "${HAS_VIRTUALENV}" ] && [ -z "${VIRTUALENV_PYTHON}" ]; then
+      USE_M_VENV=1
+    fi
   fi
 }
 
-venv() {
-  if virtualenv_is_pyvenv; then
-    pyenv-exec pyvenv "$@"
-  else
-    pyenv-exec virtualenv "$@"
+build_package_ez_setup() {
+  local ez_setup="${PYENV_VIRTUALENV_CACHE_PATH}/ez_setup.py"
+  rm -f "${ez_setup}"
+  { if [ "${EZ_SETUP+defined}" ] && [ -f "${EZ_SETUP}" ]; then
+      echo "Installing setuptools from ${EZ_SETUP}..." 1>&2
+      cat "${EZ_SETUP}"
+    else
+      [ -n "${EZ_SETUP_URL}" ]
+      echo "Installing setuptools from ${EZ_SETUP_URL}..." 1>&2
+      http get "${EZ_SETUP_URL}"
+    fi
+  } 1> "${ez_setup}"
+  pyenv-exec python -s "${ez_setup}" ${EZ_SETUP_OPTS} 1>&2 || {
+    echo "error: failed to install setuptools via ez_setup.py" >&2
+    return 1
+  }
+}
+
+build_package_get_pip() {
+  local get_pip="${PYENV_VIRTUALENV_CACHE_PATH}/get-pip.py"
+  rm -f "${get_pip}"
+  { if [ "${GET_PIP+defined}" ] && [ -f "${GET_PIP}" ]; then
+      echo "Installing pip from ${GET_PIP}..." 1>&2
+      cat "${GET_PIP}"
+    else
+      [ -n "${GET_PIP_URL}" ]
+      echo "Installing pip from ${GET_PIP_URL}..." 1>&2
+      http get "${GET_PIP_URL}"
+    fi
+  } 1> "${get_pip}"
+  pyenv-exec python -s "${get_pip}" ${GET_PIP_OPTS} 1>&2 || {
+    echo "error: failed to install pip via get-pip.py" >&2
+    return 1
+  }
+}
+
+build_package_ensurepip() {
+  pyenv-exec python -s -m ensurepip 2>/dev/null || build_package_get_pip "$@" || return 1
+}
+
+prepare_requirements() {
+  pyenv-exec pip freeze > "${REQUIREMENTS}"
+  mv -f "${VIRTUALENV_PATH}" "${VIRTUALENV_ORIG}"
+}
+
+install_requirements() {
+  if [ -f "${REQUIREMENTS}" ]; then
+    ## Migrate previously installed packages from requirements.txt
+    pyenv-exec pip install $QUIET $VERBOSE --requirement "${REQUIREMENTS}" || {
+      echo
+      echo "PIP INSTALL FAILED"
+      echo
+      echo "Inspect or clean up the original tree at ${VIRTUALENV_ORIG}"
+      echo
+      echo "Package list:"
+      cat "${REQUIREMENTS}" | sed 's/^/ * /'
+      return 1
+    } 1>&2
+    rm -f "${REQUIREMENTS}"
+    rm -fr "${VIRTUALENV_ORIG}"
   fi
 }
 
@@ -135,9 +253,11 @@ fi
 VIRTUALENV_OPTIONS=()
 
 unset FORCE
+unset NO_ENSUREPIP
 unset QUIET
 unset UPGRADE
 unset VERBOSE
+unset VIRTUALENV_PYTHON
 
 parse_options "$@"
 for option in "${OPTIONS[@]}"; do
@@ -148,6 +268,18 @@ for option in "${OPTIONS[@]}"; do
   "h" | "help" )
     usage 0
     ;;
+  "no-pip" )
+    NO_ENSUREPIP=1
+    VIRTUALENV_OPTIONS[${#VIRTUALENV_OPTIONS[*]}]="--$option"
+    ;;
+  "no-setuptools" )
+    NO_ENSUREPIP=1
+    VIRTUALENV_OPTIONS[${#VIRTUALENV_OPTIONS[*]}]="--$option"
+    ;;
+  "p" | "python" )
+    VIRTUALENV_PYTHON="${ARGUMENTS[0]}"
+    ARGUMENTS=("${ARGUMENTS[@]:1}") # shift 1
+    ;;
   "q" | "quiet" )
     QUIET="--quiet"
     ;;
@@ -161,34 +293,79 @@ for option in "${OPTIONS[@]}"; do
     version
     exit 0
     ;;
-  * ) # virtualenv long options
+  "without-pip" )
+    NO_ENSUREPIP=1
     VIRTUALENV_OPTIONS[${#VIRTUALENV_OPTIONS[*]}]="--$option"
     ;;
+  * ) # virtualenv long options
+    if [[ "$option" == "python="* ]]; then
+      VIRTUALENV_PYTHON="${option#python=}"
+    else
+      VIRTUALENV_OPTIONS[${#VIRTUALENV_OPTIONS[*]}]="--$option"
+    fi
+    ;;
   esac
 done
 
 if [[ "${#ARGUMENTS[@]}" == 0 ]]; then
-  echo "pyenv: no virtualenv name given." 1>&2
+  echo "pyenv-virtualenv: no virtualenv name given." 1>&2
   exit 1
 elif [[ "${#ARGUMENTS[@]}" == 1 ]]; then
   # If only one argument given, use current version as source version
-  VERSION_NAME="$(pyenv-version-name)"
+  OLDIFS="${IFS}"
+  IFS=:
+  VERSION_NAMES=($(pyenv-version-name))
+  IFS="${OLDIFS}"
+  VERSION_NAME="${VERSION_NAMES}"
   VIRTUALENV_NAME="${ARGUMENTS[0]}"
 else
   # Otherwise, use former as source version, and latter as virtualenv version
   VERSION_NAME="${ARGUMENTS[0]}"
-  VIRTUALENV_NAME="${ARGUMENTS[1]##*/}"
+  VIRTUALENV_NAME="${ARGUMENTS[1]}"
+fi
+
+if [[ -n "${VERSION_NAME}" ]] && command -v pyenv-latest >/dev/null; then
+  VERSION_NAME="$(pyenv-latest -f "${VERSION_NAME}")"
 fi
 
 if [ -z "${VERSION_NAME}" ] || [ -z "${VIRTUALENV_NAME}" ]; then
   usage 1
 fi
 
+if [[ "${VIRTUALENV_NAME##*/}" == "system" ]]; then
+  echo "pyenv-virtualenv: \`system' is not allowed as virtualenv name." 1>&2
+  exit 1
+fi
+
+if [ "$VIRTUALENV_NAME" != "${VIRTUALENV_NAME%[[:space:]]*}" ]; then
+  echo "pyenv-virtualenv: no whitespace allowed in virtualenv name." 1>&2
+  exit 1
+fi
+
+if [ "${VIRTUALENV_NAME}" != "${VIRTUALENV_NAME%/*}" ] && [[ "${VIRTUALENV_NAME}" != "${VERSION_NAME%%/*}/envs/${VIRTUALENV_NAME##*/}" ]] ; then
+  echo "pyenv-virtualenv: no slash allowed in virtualenv name." 1>&2
+  exit 1
+fi
+
 # Set VERSION_NAME as default version in this script
 export PYENV_VERSION="${VERSION_NAME}"
 
-# Source version must exists before creating virtualenv
-pyenv-prefix 1>/dev/null 2>&1 || usage 1
+not_installed_message() {
+    local is_available=$(python-build --definitions | grep -F -x "$1")
+    echo "pyenv-virtualenv: \`${1}' is not installed in pyenv." 1>&2
+    if [[ $is_available ]]; then
+        echo "Run \`pyenv install ${1}' to install it." 1>&2
+    else
+        echo "It does not look like a valid Python version. See \`pyenv install --list' for available versions." 1>&2
+    fi
+}
+
+# Source version must exist before creating virtualenv.
+PREFIX="$(pyenv-prefix 2>/dev/null || true)"
+if [ ! -d "${PREFIX}" ]; then
+  not_installed_message "${PYENV_VERSION}"
+  exit 1
+fi
 
 if [ -z "$TMPDIR" ]; then
   TMP="/tmp"
@@ -196,33 +373,173 @@ else
   TMP="${TMPDIR%/}"
 fi
 
-SEED="$(date "+%Y%m%d%H%M%S").$$"
-UPGRADE_PATH="${TMP}/pyenv-virtualenv.${SEED}"
-UPGRADE_LIST="${TMP}/pyenv-virtualenv.${SEED}.txt"
+# Not create `system/envs` directory even if source version is `system`
+if [[ "${VERSION_NAME%/envs/*}" == "system" ]]; then
+  VIRTUALENV_NAME="${VIRTUALENV_NAME##*/}"
+else
+  VIRTUALENV_PREFIX="$(pyenv-virtualenv-prefix 2>/dev/null || true)"
+  if [[ "${VIRTUALENV_PREFIX%/*}" == "${PYENV_ROOT}/versions" ]]; then
+    VIRTUALENV_NAME="${VIRTUALENV_PREFIX#${PYENV_ROOT}/versions/}/envs/${VIRTUALENV_NAME##*/}"
+  else
+    VIRTUALENV_NAME="${VERSION_NAME}/envs/${VIRTUALENV_NAME##*/}"
+  fi
+fi
 
 VIRTUALENV_PATH="${PYENV_ROOT}/versions/${VIRTUALENV_NAME}"
+if [[ "${VIRTUALENV_PATH/*/envs/*}" != "${PYENV_ROOT}/versions" ]]; then
+  COMPAT_VIRTUALENV_PATH="${PYENV_ROOT}/versions/${VIRTUALENV_NAME##*/}"
+fi
 
-if virtualenv_is_pyvenv; then
-  # Unset some arguments not supported by pyvenv
-  unset QUIET
-  unset VERBOSE
-  if [ -n "$UPGRADE" ]; then
+if [ -n "${COMPAT_VIRTUALENV_PATH}" ]; then
+  if [ -z ${FORCE} ]; then
+    if [ -e "${COMPAT_VIRTUALENV_PATH}" ] || [ -L "${COMPAT_VIRTUALENV_PATH}" ]; then
+      echo "pyenv-virtualenv: \`${COMPAT_VIRTUALENV_PATH}' already exists." 1>&2
+      exit 1
+    fi
+  fi
+fi
+
+unset HAS_VIRTUALENV
+unset HAS_M_VENV
+unset USE_CONDA
+unset USE_M_VENV
+detect_venv
+
+SEED="$(date "+%Y%m%d%H%M%S").$$"
+VIRTUALENV_ORIG="${VIRTUALENV_PATH}.${SEED}"
+REQUIREMENTS="${TMP}/requirements.${SEED}.txt"
+
+# Upgrade existing virtualenv
+if [ -n "$UPGRADE" ]; then
+  FORCE=1
+  # `python -m venv` has `--upgrade` by default
+  if [ -n "${USE_M_VENV}" ]; then
     unset UPGRADE
     VIRTUALENV_OPTIONS[${#VIRTUALENV_OPTIONS[*]}]="--upgrade"
   fi
-else
-  pyenv-which "virtualenv" 1>/dev/null 2>&1 || {
-    VIRTUALENV_VERSION="==${VIRTUALENV_VERSION}"
-    pyenv-exec pip install $QUIET $VERBOSE "virtualenv${VIRTUALENV_VERSION%==}"
-    pyenv-rehash
-  }
 fi
 
-# Unset environment variables which starts with `VIRTUALENV_`.
+if [ -z "${VIRTUALENV_VERSION}" ]; then
+  case "${PYENV_VERSION}" in
+  "3.0"* )
+    NO_ENSUREPIP=1
+    ;;
+  "3.1"* )
+    NO_ENSUREPIP=1
+    ;;
+  "3.2"* | "stackless-3.2"* )
+    # pip 8.x (bundled with virtualenv 14+) doesn't support 3.2 anymore
+    # https://github.com/yyuu/pyenv/issues/531
+    VIRTUALENV_VERSION="13.1.2"
+    NO_ENSUREPIP=1
+    ;;
+  esac
+fi
+
+if [ -n "${USE_CONDA}" ]; then
+  # e.g. `conda create -n py35 python=3.5 anaconda`
+  if [ -n "${VIRTUALENV_PYTHON}" ]; then
+    VIRTUALENV_PYTHON="${VIRTUALENV_PYTHON##*/}"
+    VIRTUALENV_PYTHON="${VIRTUALENV_PYTHON#python}"
+    if [ -n "${VIRTUALENV_PYTHON}" ]; then
+      VIRTUALENV_OPTIONS[${#VIRTUALENV_OPTIONS[*]}]="python=${VIRTUALENV_PYTHON}"
+    fi
+  fi
+else
+  if [ -n "${USE_M_VENV}" ]; then
+    # Unset some arguments not supported by `python -m venv`
+    unset QUIET
+    unset VERBOSE
+    if [ -n "${VIRTUALENV_PYTHON}" ]; then
+      echo "pyenv-virtualenv: \`--python=${VIRTUALENV_PYTHON}' is not supported by \`python -m venv'." 1>&2
+      exit 1
+    fi
+  else
+    if [ -n "${VIRTUALENV_PYTHON}" ]; then
+      if [[ "${VIRTUALENV_PYTHON}" == "${VIRTUALENV_PYTHON##*/}" ]] || [[ "${VIRTUALENV_PYTHON}" == "${PYENV_ROOT}/shims/"* ]]; then
+        python="$(pyenv-which "${VIRTUALENV_PYTHON##*/}" 2>/dev/null || true)"
+        if [ -x "${python}" ]; then
+          VIRTUALENV_OPTIONS[${#VIRTUALENV_OPTIONS[*]}]="--python=${python}"
+        else
+          python="$(PYENV_VERSION="$(pyenv-whence "${VIRTUALENV_PYTHON##*/}" 2>/dev/null | tail -n 1 || true)" pyenv-which "${VIRTUALENV_PYTHON##*/}" 2>/dev/null || true)"
+          if [ -x "${python}" ]; then
+            VIRTUALENV_OPTIONS[${#VIRTUALENV_OPTIONS[*]}]="--python=${python}"
+          else
+            # echo "pyenv-virtualenv: \`${VIRTUALENV_PYTHON##*/}' is not installed in pyenv." 1>&2
+            not_installed_message "${VIRTUALENV_PYTHON##*/}"
+            exit 1
+          fi
+        fi
+      else
+        VIRTUALENV_OPTIONS[${#VIRTUALENV_OPTIONS[*]}]="--python=${VIRTUALENV_PYTHON}"
+      fi
+    fi
+    if [ -z "${HAS_VIRTUALENV}" ]; then
+      if [ -n "${VIRTUALENV_VERSION}" ]; then
+        virtualenv_spec="virtualenv==${VIRTUALENV_VERSION}"
+      else
+        virtualenv_spec="virtualenv"
+      fi
+      pyenv-exec pip install $QUIET $VERBOSE "${virtualenv_spec}"
+      HAS_VIRTUALENV=1
+    fi
+  fi
+fi
+
+# Unset environment variables which start with `VIRTUALENV_`.
 # These variables are reserved for virtualenv.
 unset VIRTUALENV_VERSION
 
 
+# Download specified version of ez_setup.py/get-pip.py.
+if [ -z "${EZ_SETUP_URL}" ]; then
+  if [ -n "${SETUPTOOLS_VERSION}" ]; then
+    EZ_SETUP_URL="https://bitbucket.org/pypa/setuptools/raw/${SETUPTOOLS_VERSION}/ez_setup.py"
+    unset SETUPTOOLS_VERSION
+  else
+    EZ_SETUP_URL="https://bootstrap.pypa.io/ez_setup.py"
+  fi
+fi
+if [ -z "${GET_PIP_URL}" ]; then
+  if [ -n "${PIP_VERSION}" ]; then
+    { colorize 1 "WARNING"
+      echo ": Setting PIP_VERSION=${PIP_VERSION} is no longer supported and may cause failures during the install process."
+    } 1>&2
+    GET_PIP_URL="https://raw.githubusercontent.com/pypa/pip/${PIP_VERSION}/contrib/get-pip.py"
+    # Unset `PIP_VERSION` from environment before invoking `get-pip.py` to deal with "ValueError: invalid truth value" (pypa/pip#4528)
+    unset PIP_VERSION
+  else
+    # Use custom get-pip URL based on the target version (#1127)
+    case "${PYENV_VERSION}" in
+    2.6 | 2.6.* )
+      GET_PIP_URL="https://bootstrap.pypa.io/pip/2.6/get-pip.py"
+      ;;
+    2.7 | 2.7.* )
+      GET_PIP_URL="https://bootstrap.pypa.io/pip/2.7/get-pip.py"
+      ;;
+    3.2 | 3.2.* )
+      GET_PIP_URL="https://bootstrap.pypa.io/pip/3.2/get-pip.py"
+      ;;
+    3.3 | 3.3.* )
+      GET_PIP_URL="https://bootstrap.pypa.io/pip/3.3/get-pip.py"
+      ;;
+    3.4 | 3.4.* )
+      GET_PIP_URL="https://bootstrap.pypa.io/pip/3.4/get-pip.py"
+      ;;
+    3.5 | 3.5.* )
+      GET_PIP_URL="https://bootstrap.pypa.io/pip/3.5/get-pip.py"
+      ;;
+    3.6 | 3.6.* )
+      GET_PIP_URL="https://bootstrap.pypa.io/pip/3.6/get-pip.py"
+      ;;
+    * )
+      GET_PIP_URL="https://bootstrap.pypa.io/pip/get-pip.py"
+      ;;
+    esac
+  fi
+fi
+
+
 # Define `before_virtualenv` and `after_virtualenv` functions that allow
 # plugin hooks to register a string of code for execution before or
 # after the installation process.
@@ -239,9 +556,10 @@ after_virtualenv() {
 }
 
 # Load plugin hooks.
-for script in $(pyenv-hooks virtualenv); do
-  source "$script"
-done
+OLDIFS="$IFS"
+IFS=$'\n' scripts=(`pyenv-hooks virtualenv`)
+IFS="$OLDIFS"
+for script in "${scripts[@]}"; do source "$script"; done
 
 
 [ -d "${VIRTUALENV_PATH}" ] && PREFIX_EXISTS=1
@@ -250,7 +568,7 @@ done
 # the --force option was specified.
 if [ -d "${VIRTUALENV_PATH}/bin" ]; then
   if [ -z "$FORCE" ]; then
-    echo "pyenv: ${VIRTUALENV_PATH} already exists" 1>&2
+    echo "pyenv-virtualenv: ${VIRTUALENV_PATH} already exists" 1>&2
     read -p "continue with installation? (y/N) "
 
     case "$REPLY" in
@@ -260,8 +578,12 @@ if [ -d "${VIRTUALENV_PATH}/bin" ]; then
   fi
 
   if [ -n "$UPGRADE" ]; then
-    PYENV_VERSION="${VIRTUALENV_NAME}" pyenv-exec pip freeze >"${UPGRADE_LIST}"
-    mv -f "${VIRTUALENV_PATH}" "${UPGRADE_PATH}"
+    if [ -n "${NO_ENSUREPIP}" ]; then
+      echo "pyenv-virtualenv: upgrading will not work with --no-setuptools or --no-pip" 1>&2
+      exit 1
+    else
+      PYENV_VERSION="${VIRTUALENV_NAME}" prepare_requirements
+    fi
   fi
 fi
 
@@ -270,66 +592,69 @@ for hook in "${before_hooks[@]}"; do eval "$hook"; done
 
 # Plan cleanup on unsuccessful installation.
 cleanup() {
+  [[ -L "${COMPAT_VIRTUALENV_PATH}" ]] && rm "${COMPAT_VIRTUALENV_PATH}"
   [ -z "${PREFIX_EXISTS}" ] && rm -rf "$VIRTUALENV_PATH"
 }
 
-trap cleanup SIGINT
+trap cleanup SIGINT ERR
 
 # Invoke virtualenv and record exit status in $STATUS.
 STATUS=0
-# virtualenv may download distribute/setuptools in current directory.
-# change to cache directory to reuse them between invocation.
+# virtualenv may download distribute/setuptools into the current directory.
+# Change to cache directory to reuse them between invocations.
 mkdir -p "${PYENV_VIRTUALENV_CACHE_PATH}"
 cd "${PYENV_VIRTUALENV_CACHE_PATH}"
-venv $QUIET $VERBOSE "${VIRTUALENV_OPTIONS[@]}" "${VIRTUALENV_PATH}" && {
-  if virtualenv_is_pyvenv; then
-    [ -n "${EZ_SETUP_URL}" ] || {
-      if [ -n "${SETUPTOOLS_VERSION}" ]; then
-        EZ_SETUP_URL="https://bitbucket.org/pypa/setuptools/raw/${SETUPTOOLS_VERSION}/ez_setup.py"
-      else
-        EZ_SETUP_URL="https://bitbucket.org/pypa/setuptools/downloads/ez_setup.py"
-      fi
-    }
-    PYENV_VERSION="${VIRTUALENV_NAME}" pyenv-exec python -c 'import setuptools' 1>/dev/null 2>&1 || {
-      echo "Installing setuptools from ${EZ_SETUP_URL}..." 1>&2
-      http get "${EZ_SETUP_URL}" | PYENV_VERSION="${VIRTUALENV_NAME}" pyenv-exec python
-    }
-
-    [ -n "${GET_PIP_URL}" ] || {
-      if [ -n "${PIP_VERSION}" ]; then
-        GET_PIP_URL="https://raw.github.com/pypa/pip/${PIP_VERSION}/contrib/get-pip.py"
-      else
-        GET_PIP_URL="https://raw.github.com/pypa/pip/master/contrib/get-pip.py"
-      fi
-    }
-    PYENV_VERSION="${VIRTUALENV_NAME}" pyenv-which pip 1>/dev/null 2>&1 || {
-      echo "Installing pip from ${GET_PIP_URL}..." 1>&2
-      http get "${GET_PIP_URL}" | PYENV_VERSION="${VIRTUALENV_NAME}" pyenv-exec python
-    }
-  fi
-} || STATUS="$?"
-
-## Migrate previously installed packages from requirements.txt
-if [ -n "$UPGRADE" ]; then
-  UPGRADE_STATUS=0
-  PYENV_VERSION="${VIRTUALENV_NAME}" pyenv-exec pip install $QUIET $VERBOSE --requirement "${UPGRADE_LIST}" || UPGRADE_STATUS=$?
-  if [ "$UPGRADE_STATUS" == "0" ]; then
-    rm -f "${UPGRADE_LIST}"
-    rm -fr "${UPGRADE_PATH}"
+if [ -n "${USE_CONDA}" ]; then
+  if [ -z "$VIRTUALENV_PYTHON" ]; then
+    #process substitution doesn't seem to work unless it's directly inserted to the command line
+    #if we add it to VIRTUALENV_OPTIONS instead, "broken pipe" happens
+    pyenv-exec conda create $QUIET $VERBOSE --name "${VIRTUALENV_PATH##*/}" --yes "${VIRTUALENV_OPTIONS[@]}" --file <(pyenv-exec conda list python --full-name --export) || STATUS="$?"
   else
-    { echo
-      echo "UPGRADE FAILED"
-      echo
-      echo "Inspect or clean up the original tree at ${UPGRADE_PATH}"
-      echo
-      echo "Package list:"
-      cat "${UPGRADE_LIST}"
-    } 1>&2
-    STATUS="$UPGRADE_STATUS"
+    pyenv-exec conda create $QUIET $VERBOSE --name "${VIRTUALENV_PATH##*/}" --yes "${VIRTUALENV_OPTIONS[@]}" || STATUS="$?"
+  fi
+else
+  if [ -n "${USE_M_VENV}" ]; then
+    pyenv-exec "${M_VENV_PYTHON_BIN:-python}" -m venv $QUIET $VERBOSE "${VIRTUALENV_OPTIONS[@]}" "${VIRTUALENV_PATH}" || STATUS="$?"
+  else
+    pyenv-exec virtualenv $QUIET $VERBOSE "${VIRTUALENV_OPTIONS[@]}" "${VIRTUALENV_PATH}" || STATUS="$?"
   fi
 fi
 
-# Execute `after_virtualenv` hooks
+(
+  shopt -s nullglob
+  for extra_binary in "$PREFIX"/bin/python*-config; do
+    extra_binary_linkname="$VIRTUALENV_PATH/bin/$(basename $extra_binary)"
+    [[ -e "$extra_binary_linkname" ]] || \
+        ln -s "$extra_binary" "$extra_binary_linkname"
+  done
+)
+
+## Create symlink in the `versions` directory for backward compatibility
+if [ -d "${VIRTUALENV_PATH}" ] && [ -n "${COMPAT_VIRTUALENV_PATH}" ]; then
+  # Overwrite an existing link, can happen if running with -f
+  ln -fsn "${VIRTUALENV_PATH}" "${COMPAT_VIRTUALENV_PATH}"
+fi
+
+if [ ! -e "${VIRTUALENV_PATH}/bin/pydoc" ]; then
+  mkdir -p "${VIRTUALENV_PATH}/bin"
+  cat <<EOS > "${VIRTUALENV_PATH}/bin/pydoc"
+#!${VIRTUALENV_PATH}/bin/python
+import pydoc
+if __name__ == '__main__':
+      pydoc.cli()
+EOS
+  chmod +x "${VIRTUALENV_PATH}/bin/pydoc"
+fi
+
+if [ -z "${NO_ENSUREPIP}" ]; then
+  ## Install setuptools and pip.
+  PYENV_VERSION="${VIRTUALENV_NAME}" build_package_ensurepip
+
+  ## Migrate previously installed packages from requirements.txt.
+  PYENV_VERSION="${VIRTUALENV_NAME}" install_requirements || true
+fi
+
+# Execute `after_virtualenv` hooks.
 for hook in "${after_hooks[@]}"; do eval "$hook"; done
 
 # Run `pyenv-rehash` after a successful installation.

bin/pyenv-virtualenv-delete

@@ -0,0 +1,108 @@
+#!/usr/bin/env bash
+#
+# Summary: Uninstall a specific Python virtualenv
+#
+# Usage: pyenv virtualenv-delete [-f|--force] <virtualenv>
+#
+#    -f  Attempt to remove the specified virtualenv without prompting
+#        for confirmation. If the virtualenv does not exist, do not
+#        display an error message.
+#
+# See `pyenv virtualenvs` for a complete list of installed versions.
+#
+set -e
+[ -n "$PYENV_DEBUG" ] && set -x
+
+if [ -z "${PYENV_ROOT}" ]; then
+  PYENV_ROOT="$(pyenv-root)"
+fi
+
+# Provide pyenv completions
+if [ "$1" = "--complete" ]; then
+  exec pyenv virtualenvs --bare
+fi
+
+resolve_link() {
+  $(type -p greadlink readlink | head -1) "$1"
+}
+
+usage() {
+  pyenv-help virtualenv-delete 2>/dev/null
+  [ -z "$1" ] || exit "$1"
+}
+
+if [ -z "$PYENV_ROOT" ]; then
+  PYENV_ROOT="${HOME}/.pyenv"
+fi
+
+if [ "$1" = "-h" ] || [ "$1" = "--help" ]; then
+  usage 0
+fi
+
+unset FORCE
+if [ "$1" = "-f" ] || [ "$1" = "--force" ]; then
+  FORCE=true
+  shift
+fi
+
+[ "$#" -eq 1 ] || usage 1 >&2
+
+DEFINITION="$1"
+case "$DEFINITION" in
+"" | -* )
+  usage 1 >&2
+  ;;
+esac
+
+VERSION_NAME="${DEFINITION##*/}"
+# Must initialize because it might be set in the environment
+ENV_PREFIX=
+ENV_COMPAT_PREFIX="${PYENV_ROOT}/versions/${VERSION_NAME}"
+
+if [[ "${DEFINITION}" != "${DEFINITION%/envs/*}" ]]; then
+  ENV_PREFIX="${PYENV_ROOT}/versions/${DEFINITION}"
+  if [ -L "${ENV_COMPAT_PREFIX}" ]; then
+    if [[ "${ENV_PREFIX}" != "$(resolve_link "${ENV_COMPAT_PREFIX}" 2>/dev/null || true)" ]]; then
+      unset ENV_COMPAT_PREFIX
+    fi
+  fi
+else
+  if [ -L "${ENV_COMPAT_PREFIX}" ]; then
+    ENV_PREFIX="$(resolve_link "${ENV_COMPAT_PREFIX}" 2>/dev/null || true)"
+    if [[ "${ENV_PREFIX%/*/envs/*}" != "${PYENV_ROOT}/versions" ]]; then
+      echo "pyenv-virtualenv: \`${ENV_COMPAT_PREFIX}' is a symlink for unknown location." 1>&2
+      exit 1
+    fi
+  else
+    if pyenv-virtualenv-prefix "${VERSION_NAME}" 1>/dev/null 2>&1; then
+      ENV_PREFIX="${PYENV_ROOT}/versions/${VERSION_NAME}"
+      unset ENV_COMPAT_PREFIX
+    elif [ -z "$FORCE" ]; then
+      echo "pyenv-virtualenv: \`${DEFINITION}' is not a virtualenv." 1>&2
+      exit 1
+    fi
+  fi
+fi
+
+if [ ! -d "$ENV_PREFIX" ]; then
+  if [ -z "$FORCE" ]; then
+    echo "pyenv-virtualenv: virtualenv \`$VERSION_NAME' not installed" >&2
+    exit 1
+  else
+    exit 0
+  fi
+fi
+
+if [ -z "$FORCE" ]; then
+  read -p "pyenv-virtualenv: remove $ENV_PREFIX? (y/N) "
+  case "$REPLY" in
+  y* | Y* ) ;;
+  * ) exit 1 ;;
+  esac
+fi
+
+rm -rf "$ENV_PREFIX"
+if [ -L "$ENV_COMPAT_PREFIX" ]; then
+  rm -rf "$ENV_COMPAT_PREFIX"
+fi
+pyenv-rehash

bin/pyenv-virtualenv-init

@@ -0,0 +1,269 @@
+#!/usr/bin/env bash
+# Summary: Configure the shell environment for pyenv-virtualenv
+# Usage: eval "$(pyenv virtualenv-init - [<shell>])"
+#
+# Automatically activates a Python virtualenv environment based on current
+# pyenv version.
+#
+
+set -e
+[ -n "$PYENV_DEBUG" ] && set -x
+
+# Detect stat format for mtime: GNU uses -c %Y, BSD uses -f %m
+# -L follows symlinks: a symlinked .python-version reflects target changes
+if stat -L -c %Y / >/dev/null 2>&1; then
+  _stat_fmt="-L -c %Y"
+else
+  _stat_fmt="-L -f %m"
+fi
+
+# Check for version-name hooks at init time. Hooks can alter version
+# resolution in ways the mtime cache cannot track. If present, the hook
+# falls back to upstream behavior (no caching). Restart shell after
+# installing or removing pyenv plugins.
+_has_version_hooks=""
+if [ -n "$(pyenv hooks version-name 2>/dev/null)" ]; then
+  _has_version_hooks=1
+fi
+
+resolve_link() {
+  $(type -p greadlink readlink | head -1) "$1"
+}
+
+abs_dirname() {
+  local cwd="$(pwd)"
+  local path="$1"
+
+  while [ -n "$path" ]; do
+    cd "${path%/*}"
+    local name="${path##*/}"
+    path="$(resolve_link "$name" || true)"
+  done
+
+  pwd
+  cd "$cwd"
+}
+
+PYENV_VIRTUALENV_INSTALL_PREFIX="$(dirname "$(abs_dirname "$0")")"
+
+print=""
+for args in "$@"
+do
+  if [ "$args" = "-" ]; then
+    print=1
+    shift
+  fi
+done
+
+shell="${1:-$PYENV_SHELL}"
+if [ -z "$shell" ]; then
+  shell="$(ps -p "$PPID" -o 'args=' 2>/dev/null || true)"
+  shell="${shell##-}"
+  shell="${shell%% *}"
+  shell="${shell:-$SHELL}"
+  shell="${shell##*/}"
+  shell="${shell%%-*}"
+fi
+
+if [ -z "$print" ]; then
+  case "$shell" in
+  bash )
+    profile='~/.bashrc'
+    ;;
+  zsh )
+    profile='~/.zshrc'
+    ;;
+  ksh )
+    profile='~/.profile'
+    ;;
+  fish )
+    profile='~/.config/fish/config.fish'
+    ;;
+  * )
+    profile='your profile'
+    ;;
+  esac
+
+  { echo "# Load pyenv-virtualenv automatically by adding"
+    echo "# the following to ${profile}:"
+    echo
+    case "$shell" in
+    fish )
+      echo 'status --is-interactive; and source (pyenv virtualenv-init -|psub)'
+      ;;
+    * )
+      echo 'eval "$(pyenv virtualenv-init -)"'
+      ;;
+    esac
+    echo
+  } >&2
+
+  exit 1
+fi
+
+case "$shell" in
+fish )
+  cat <<EOS
+while set index (contains -i -- "${PYENV_VIRTUALENV_ROOT:-${PYENV_VIRTUALENV_INSTALL_PREFIX}}/shims" \$PATH)
+set -eg PATH[\$index]; end; set -e index
+set -gx PATH '${PYENV_VIRTUALENV_ROOT:-${PYENV_VIRTUALENV_INSTALL_PREFIX}}/shims' \$PATH;
+set -gx PYENV_VIRTUALENV_INIT 1;
+EOS
+  ;;
+* )
+  cat <<EOS
+export PATH="${PYENV_VIRTUALENV_ROOT:-${PYENV_VIRTUALENV_INSTALL_PREFIX}}/shims:\${PATH}";
+export PYENV_VIRTUALENV_INIT=1;
+EOS
+  ;;
+esac
+
+case "$shell" in
+fish )
+  cat <<EOS
+function _pyenv_virtualenv_hook --on-event fish_prompt;
+  set -l ret \$status
+EOS
+
+  if [ -z "$_has_version_hooks" ]; then
+    cat <<EOS
+  if test "\$PYENV_VERSION" = "\$_PYENV_VH_VERSION" \\
+    -a "\$VIRTUAL_ENV" = "\$_PYENV_VH_VENV"
+    if test -n "\$PYENV_VERSION"
+      return \$ret
+    end
+    if test "\$PWD" = "\$_PYENV_VH_PWD" \\
+      -a "(stat ${_stat_fmt} \$_PYENV_VH_PATHS 2>/dev/null)" = "\$_PYENV_VH_MTIMES"
+      return \$ret
+    end
+  end
+EOS
+  fi
+  
+  cat <<EOS
+  if [ -n "\$VIRTUAL_ENV" ]
+    pyenv activate --quiet; or pyenv deactivate --quiet; or true
+  else
+    pyenv activate --quiet; or true
+  end
+EOS
+
+  if [ -z "$_has_version_hooks" ]; then
+    cat <<EOS
+  set -g _PYENV_VH_PWD "\$PWD"
+  set -g _PYENV_VH_VERSION "\$PYENV_VERSION"
+  set -g _PYENV_VH_VENV "\$VIRTUAL_ENV"
+  set -l d "\$PWD"
+  set -l _pvh_found_local 0
+  set -g _PYENV_VH_PATHS
+  while true
+    if test -f "\$d/.python-version"; or test -L "\$d/.python-version"
+      set -g _PYENV_VH_PATHS \$_PYENV_VH_PATHS "\$d/.python-version"
+      if test -f "\$d/.python-version" 
+        set _pvh_found_local 1
+        break
+      end
+    else
+      set -g _PYENV_VH_PATHS \$_PYENV_VH_PATHS "\$d"
+    end
+    test "\$d" = "/"; and break
+    set d (string replace -r '/[^/]*\$' '' -- "\$d")
+    test -z "\$d"; and set d "/"
+  end
+  if test "\$_pvh_found_local" = "0"
+    set -g _PYENV_VH_PATHS \$_PYENV_VH_PATHS "\$PYENV_ROOT/version"
+  end
+  set -g _PYENV_VH_MTIMES (stat ${_stat_fmt} \$_PYENV_VH_PATHS 2>/dev/null)
+EOS
+  fi
+  
+  cat <<EOS
+  return \$ret
+end
+EOS
+  ;;
+
+bash|zsh )
+  cat <<EOS
+_pyenv_virtualenv_hook() {
+  local ret=\$?
+EOS
+
+  if [ -z "$_has_version_hooks" ]; then
+    cat <<EOS
+  if [ "\${PYENV_VERSION-}" = "\${_PYENV_VH_VERSION-}" ] \\
+    && [ "\${VIRTUAL_ENV-}" = "\${_PYENV_VH_VENV-}" ]; then
+    if [ -n "\${PYENV_VERSION-}" ]; then
+      return \$ret
+    fi
+    if [ "\${PWD}" = "\${_PYENV_VH_PWD-}" ] \\
+      && [ "\$(stat ${_stat_fmt} "\${_PYENV_VH_PATHS[@]}" 2>/dev/null)" = "\${_PYENV_VH_MTIMES-}" ]; then
+      return \$ret
+    fi
+  fi
+EOS
+  fi
+
+  cat <<EOS
+  if [ -n "\${VIRTUAL_ENV-}" ]; then
+    eval "\$(pyenv sh-activate --quiet || pyenv sh-deactivate --quiet || true)" || true
+  else
+    eval "\$(pyenv sh-activate --quiet || true)" || true
+  fi
+EOS
+
+  if [ -z "$_has_version_hooks" ]; then
+    cat <<EOS
+  _PYENV_VH_PWD="\${PWD}"
+  _PYENV_VH_VERSION="\${PYENV_VERSION-}"
+  _PYENV_VH_VENV="\${VIRTUAL_ENV-}"
+  local _pvh_d="\${PWD}" _pvh_found_local=0
+  _PYENV_VH_PATHS=()
+  while :; do
+    if [ -f "\${_pvh_d}/.python-version" ] || [ -L "\${_pvh_d}/.python-version" ]; then
+      _PYENV_VH_PATHS+=("\${_pvh_d}/.python-version")
+      if [ -f "\${_pvh_d}/.python-version" ]; then 
+        _pvh_found_local=1
+        break
+      fi
+    else
+      _PYENV_VH_PATHS+=("\${_pvh_d}")
+    fi
+    [ "\${_pvh_d}" = "/" ] && break
+    _pvh_d="\${_pvh_d%/*}"
+    [ -z "\${_pvh_d}" ] && _pvh_d="/"
+  done
+  if [ "\${_pvh_found_local}" = "0" ]; then
+    _PYENV_VH_PATHS+=("\${PYENV_ROOT}/version")
+  fi
+  _PYENV_VH_MTIMES="\$(stat ${_stat_fmt} "\${_PYENV_VH_PATHS[@]}" 2>/dev/null)"
+EOS
+  fi
+
+  cat <<EOS
+  return \$ret
+};
+EOS
+  ;;
+esac
+
+case "$shell" in
+bash )
+  cat <<EOS
+if ! [[ "\${PROMPT_COMMAND-}" =~ _pyenv_virtualenv_hook ]]; then
+  PROMPT_COMMAND="_pyenv_virtualenv_hook;\${PROMPT_COMMAND-}"
+fi
+EOS
+  ;;
+zsh )
+  cat <<EOS
+typeset -g -a precmd_functions
+if [[ -z \$precmd_functions[(r)_pyenv_virtualenv_hook] ]]; then
+  precmd_functions=(_pyenv_virtualenv_hook \$precmd_functions);
+fi
+EOS
+  ;;
+* )
+  # No prompt command support or it's installed elsewhere
+  ;;
+esac

bin/pyenv-virtualenv-prefix

@@ -6,42 +6,110 @@
 
 set -e
 [ -n "$PYENV_DEBUG" ] && set -x
+if [ -L "${BASH_SOURCE}" ]; then
+    READLINK=$(type -p greadlink readlink | head -1)
+    if [ -z "$READLINK" ]; then
+        echo "pyenv: cannot find readlink - are you missing GNU coreutils?" >&2
+        exit 1
+    fi
+    resolve_link() {
+        $READLINK -f "$1"
+    }
+    script_path=$(resolve_link ${BASH_SOURCE})
+else
+    script_path=${BASH_SOURCE}
+fi
+
+. ${script_path%/*}/../libexec/pyenv-virtualenv-realpath
 
 if [ -z "$PYENV_ROOT" ]; then
   PYENV_ROOT="${HOME}/.pyenv"
 fi
 
+OLDIFS="$IFS"
+IFS=:
 if [ -n "$1" ]; then
-  versions=($@)
-  IFS=: PYENV_VERSION="${versions[*]}"
+  # $@ is not affected by IFS
+  versions=("$@")
+  PYENV_VERSION="${versions[*]}"
   export PYENV_VERSION
 else
-  IFS=: versions=($(pyenv-version-name))
+  versions=($(pyenv-version-name))
 fi
+IFS="$OLDIFS"
 
-real_prefix() { # virtualenv
-  local version="$1"
-  PYENV_VERSION="${version}" pyenv-exec python -c 'import sys;print(sys.real_prefix)' 2>/dev/null
-}
-
-base_prefix() { # pyvenv
-  # FIXME: non-pyvenv versions also have sys.base_prefix
-  local version="$1"
-  PYENV_VERSION="${version}" pyenv-exec python -c 'import sys;print(sys.base_prefix)' 2>/dev/null
+append_virtualenv_prefix() {
+  if [ -d "${VIRTUALENV_PREFIX_PATH}" ]; then
+    VIRTUALENV_PREFIX_PATHS=("${VIRTUALENV_PREFIX_PATHS[@]}" "${VIRTUALENV_PREFIX_PATH:-${PYENV_PREFIX_PATH}}")
+  else
+    echo "pyenv-virtualenv: version \`${version}' is not a virtualenv" 1>&2
+    exit 1
+  fi
 }
 
 VIRTUALENV_PREFIX_PATHS=()
 for version in "${versions[@]}"; do
-  PREFIX="$(pyenv-prefix "${version}")"
-  if [ -f "${PREFIX}/bin/activate" ]; then
-    VIRTUALENV_PREFIX_PATH="$(real_prefix "${version}" || base_prefix "${version}" || true)"
-    if [ -d "${VIRTUALENV_PREFIX_PATH}" ]; then
-      VIRTUALENV_PREFIX_PATHS=("${VIRTUALENV_PREFIX_PATHS[@]}" "$VIRTUALENV_PREFIX_PATH")
+  if [ "$version" = "system" ]; then
+    echo "pyenv-virtualenv: version \`${version}' is not a virtualenv" 1>&2
+    exit 1
+  fi
+
+  # In the vast majority of cases, there's a direct match and 
+  # not spawning `pyenv-prefix' saves about half the invocation time
+  # with a signle argument which accumulates when called repeatedly
+  # (e.g. from `pyenv-virtualenvs').
+  # `pyenv-prefix' also does not have hooks to worry about.
+  # XXX: refactor the test into a shared module?
+  PYENV_PREFIX_PATH="${PYENV_ROOT}/versions/${version}"
+  if [[ ! -d "$PYENV_PREFIX_PATH" ]]; then
+    PYENV_PREFIX_PATH="$(pyenv-prefix "${version}")"
+  fi
+
+  if [ -x "${PYENV_PREFIX_PATH}/bin/python" ]; then
+    if [ -f "${PYENV_PREFIX_PATH}/bin/activate" ]; then
+      if [ -f "${PYENV_PREFIX_PATH}/bin/conda" ]; then
+        # conda
+        VIRTUALENV_PREFIX_PATH="${PYENV_PREFIX_PATH}"
+      else
+        if [ -f "${PYENV_ROOT}/versions/${version}/pyvenv.cfg" ]; then
+          # venv
+          virtualenv_binpath="$(cut -b 1-1024 "${PYENV_ROOT}/versions/${version}/pyvenv.cfg" | sed -n '/^ *home *= */s///p' || true)"
+          VIRTUALENV_PREFIX_PATH="${virtualenv_binpath%/bin}"
+        else
+          # virtualenv
+          if [ -d "${PYENV_ROOT}/versions/${version}/Lib" ]; then
+            # jython
+            virtualenv_libpath="${PYENV_ROOT}/versions/${version}/Lib"
+          else
+            if [ -d "${PYENV_ROOT}/versions/${version}/lib-python" ]; then
+              # pypy
+              virtualenv_libpath="${PYENV_ROOT}/versions/${version}/lib-python"
+            else
+              virtualenv_libpath="${PYENV_ROOT}/versions/${version}/lib"
+            fi
+          fi
+          virtualenv_orig_prefix="$(find "${virtualenv_libpath}/" -maxdepth 2 -type f -and -name "orig-prefix.txt" 2>/dev/null | head -1)"
+          if [ -f "${virtualenv_orig_prefix}" ]; then
+            VIRTUALENV_PREFIX_PATH="$(cat "${virtualenv_orig_prefix}" 2>/dev/null || true)"
+          fi
+        fi
+      fi
+      append_virtualenv_prefix
+    elif [ -d "${PYENV_PREFIX_PATH}/conda-meta" ]; then
+      # conda
+      VIRTUALENV_PREFIX_PATH="$(realpath "${PYENV_PREFIX_PATH}"/../..)"
+      append_virtualenv_prefix
+    else
+      echo "pyenv-virtualenv: version \`${version}' is not a virtualenv" 1>&2
+      exit 1
     fi
   else
-    echo "pyenv: version \`${version}' is not a virtualenv" 1>&2
+    echo "pyenv-virtualenv: \`python' not found in version \`${version}'" 1>&2
     exit 1
   fi
 done
 
-IFS=: echo "${VIRTUALENV_PREFIX_PATHS[*]}"
+OLDIFS="$IFS"
+IFS=:
+echo "${VIRTUALENV_PREFIX_PATHS[*]}"
+IFS="$OLDIFS"

bin/pyenv-virtualenvs

@@ -1,56 +1,131 @@
 #!/usr/bin/env bash
 #
 # Summary: List all Python virtualenvs found in `$PYENV_ROOT/versions/*'.
+# Usage: pyenv virtualenvs [--bare] [--skip-aliases]
 #
-# Usage: pyenv virtualenvs [--bare]
-#
+# List all virtualenvs found in `$PYENV_ROOT/versions/*' and its `$PYENV_ROOT/versions/envs/*'.
 
 set -e
-[ -n "$PYENV_DEBUG" ] && set -x
+[[ -n $PYENV_DEBUG ]] && set -x
 
-if [ -z "$PYENV_ROOT" ]; then
+if [[ -z $PYENV_ROOT ]]; then
   PYENV_ROOT="${HOME}/.pyenv"
 fi
 
-if [ "$1" = "--bare" ]; then
-  hit_prefix=""
-  miss_prefix=""
-  current_versions=()
-  print_origin=""
+unset bare
+unset skip_aliases
+# Provide pyenv completions
+for arg; do
+  case "$arg" in
+  --complete )
+    echo --bare
+    echo --skip-aliases
+    exit ;;
+  --bare ) bare=1 ;;
+  --skip-aliases ) skip_aliases=1 ;;
+  * )
+    pyenv-help --usage virtualenvs >&2
+    exit 1
+    ;;
+  esac
+done
+
+versions_dir="${PYENV_ROOT}/versions"
+
+if [[ ${BASH_VERSINFO[0]} -gt 3 ]]; then
+  declare -A current_versions
 else
+  current_versions=()
+fi
+if [[ -z $bare ]]; then
   hit_prefix="* "
   miss_prefix="  "
-  current_versions=($(IFS=:; for version in $(pyenv-version-name); do echo "$version"; done))
-  print_origin="1"
+  OLDIFS="$IFS"
+  IFS=:
+  if [[ ${BASH_VERSINFO[0]} -gt 3 ]]; then
+    for i in $(pyenv-version-name || true); do
+      current_versions["$i"]="1"
+    done
+  else
+    read -r -a current_versions <<< "$(pyenv-version-name || true)"
+  fi
+  IFS="$OLDIFS"
 fi
 
-array_exists() {
-  local x car="$1"
+exists() {
+  local car="$1"
+  local cdar
   shift
-  for x in "$@"; do
-    [ "${x}" = "${car}" ] && return 0
+  for cdar in "$@"; do
+    if [ "${car}" == "${cdar}" ]; then
+      return 0
+    fi
   done
   return 1
 }
 
 print_version() {
-  if [ -n "${print_origin}" ]; then
-    local version_origin="$2"
-  else
-    local version_origin=""
+  local version="${1:?}"
+  if [[ -n $bare ]]; then
+    echo "$version"
+    return
   fi
-  if array_exists "$1" "${current_versions[@]}"; then
-    echo "${hit_prefix}${1}${version_origin}"
+  local path="${2:?}"
+  if [[ -L "$path" ]]; then
+    version_repr="$version --> $(readlink "$path")"
   else
-    echo "${miss_prefix}${1}${version_origin}"
+    version_repr="$version (created from $(pyenv-virtualenv-prefix "$version" 2>/dev/null))"
+  fi
+  if [[ ${BASH_VERSINFO[0]} -gt 3 && ${current_versions["$1"]} ]] || \
+     { [[ ${BASH_VERSINFO[0]} -le 3 ]] && exists "$1" "${current_versions[@]}"; }; then
+    echo "${hit_prefix}${version_repr} (set by $(pyenv-version-origin))"
+  else
+    echo "${miss_prefix}${version_repr}"
   fi
 }
 
-for version in $(pyenv-versions --bare); do
-  if [[ "${version}" != "system" ]]; then
-    virtualenv_prefix="$(pyenv-virtualenv-prefix "${version}" 2>/dev/null || true)"
-    if [ -d "${virtualenv_prefix}" ]; then
-      print_version "${version}" " (created from ${virtualenv_prefix})"
+shopt -s dotglob
+shopt -s nullglob
+version_dir_entries=("$versions_dir"/*)
+venv_dir_entries=("$versions_dir"/*/envs/*)
+
+if sort --version-sort </dev/null >/dev/null 2>&1; then
+    # system sort supports version sorting
+    OLDIFS="$IFS"
+    IFS='||'
+
+    read -r -a version_dir_entries <<< "$(
+        printf "%s||" "${version_dir_entries[@]}" |
+        sort --version-sort
+    )"
+
+    read -r -a venv_dir_entries <<< "$(
+        printf "%s||" "${venv_dir_entries[@]}" |
+        sort --version-sort
+    )"
+
+    IFS="$OLDIFS"
+fi
+
+for env_path in "${venv_dir_entries[@]}"; do
+  if [[ -d ${env_path} ]]; then
+    print_version "${env_path#"${PYENV_ROOT}"/versions/}" "${env_path}"
+  fi
+done
+
+for env_path in "${version_dir_entries[@]}"; do
+  if [[ -d ${env_path} ]]; then
+    if [[ -L ${env_path} ]]; then
+      if [[ -z $skip_aliases ]]; then
+        print_version "${env_path#"${PYENV_ROOT}"/versions/}" "${env_path}"
+      fi
+    # Mimics the test from pyenv-virtualenv-prefix
+    # XXX: refactor itto a shared module ?
+    elif [[ -f "${env_path}/bin/activate" ]]; then
+      print_version "${env_path#"${PYENV_ROOT}"/versions/}" "${env_path}"
     fi
   fi
 done
+
+shopt -u dotglob
+shopt -u nullglob

etc/pyenv.d/rehash/envs.bash

@@ -0,0 +1,11 @@
+virtualenv_list_executable_names() {
+  local file
+  shopt -s nullglob
+  for file in "$PYENV_ROOT"/versions/*/envs/*/bin/*; do
+    echo "${file##*/}"
+  done
+  shopt -u nullglob
+}
+if declare -f make_shims 1>/dev/null 2>&1; then
+  make_shims $(virtualenv_list_executable_names | sort -u)
+fi

etc/pyenv.d/uninstall/envs.bash

@@ -0,0 +1,32 @@
+resolve_link() {
+  $(type -p greadlink readlink | head -1) "$1"
+}
+
+uninstall_related_virtual_env() {
+  if [ -n "${DEFINITION}" ]; then
+    if [[ "${DEFINITION}" != "${DEFINITION%/envs/*}" ]]; then
+      # Uninstall virtualenv by long name
+      pyenv-virtualenv-delete ${FORCE+-f} "${DEFINITION}"
+    else
+      VERSION_NAME="${VERSION_NAME:-${DEFINITION##*/}}"
+      PREFIX="${PREFIX:-${PYENV_ROOT}/versions/${VERSION_NAME}}"
+      if [ -L "${PREFIX}" ]; then
+        REAL_PREFIX="$(resolve_link "${PREFIX}" 2>/dev/null || true)"
+        REAL_DEFINITION="${REAL_PREFIX#${PYENV_ROOT}/versions/}"
+        if [[ "${REAL_DEFINITION}" != "${REAL_DEFINITION%/envs/*}" ]]; then
+          # Uninstall virtualenv by short name
+          pyenv-virtualenv-delete ${FORCE+-f} "${REAL_DEFINITION}"
+        fi
+      else
+        # Uninstall all virtualenvs inside `envs` directory too
+        shopt -s nullglob
+        for virtualenv in "${PREFIX}/envs/"*; do
+          pyenv-virtualenv-delete ${FORCE+-f} "${DEFINITION}/envs/${virtualenv##*/}"
+        done
+        shopt -u nullglob
+      fi
+    fi
+  fi
+}
+
+before_uninstall "uninstall_related_virtual_env"

etc/pyenv.d/which/conda.bash

@@ -0,0 +1,11 @@
+# newer versions of conda share programs from the real prefix
+# this hook tries to find the executable there
+
+if [ ! -x "${PYENV_COMMAND_PATH}" ] && [[ "${PYENV_COMMAND_PATH##*/}" == "conda" ]]; then
+  if [ -d "${PYENV_ROOT}/versions/${version}/conda-meta" ]; then
+    conda_command_path="$(pyenv-virtualenv-prefix "$version")"/bin/"${PYENV_COMMAND_PATH##*/}"
+    if [ -x "${conda_command_path}" ]; then
+      PYENV_COMMAND_PATH="${conda_command_path}"
+    fi
+  fi
+fi

etc/pyenv.d/which/python-config.bash

@@ -0,0 +1,43 @@
+# some of libraries require `python-config` in PATH to build native extensions.
+# as a workaround, this hook will try to find the executable from the source
+# version of the virtualenv.
+# https://github.com/yyuu/pyenv/issues/397
+
+if [ ! -x "${PYENV_COMMAND_PATH}" ] && [[ "${PYENV_COMMAND_PATH##*/}" == "python"*"-config" ]]; then
+  OLDIFS="${IFS}"
+  IFS=:
+  version="$(pyenv-version-name)"
+  IFS="${OLDIFS}"
+  if [ -f "${PYENV_ROOT}/versions/${version}/bin/activate" ]; then
+    if [ -f "${PYENV_ROOT}/versions/${version}/bin/conda" ]; then
+      : # do nothing for conda's environments
+    else
+      if [ -f "${PYENV_ROOT}/versions/${version}/pyvenv.cfg" ]; then
+        # venv
+        virtualenv_binpath="$(cut -b 1-1024 "${PYENV_ROOT}/versions/${version}/pyvenv.cfg" | sed -n '/^ *home *= */s///p' || true)"
+        virtualenv_prefix="${virtualenv_binpath%/bin}"
+      else
+        # virtualenv
+        if [ -d "${PYENV_ROOT}/versions/${version}/Lib" ]; then
+          # jython
+          virtualenv_libpath="${PYENV_ROOT}/versions/${version}/Lib"
+        else
+          if [ -d "${PYENV_ROOT}/versions/${version}/lib-python" ]; then
+            # pypy
+            virtualenv_libpath="${PYENV_ROOT}/versions/${version}/lib-python"
+          else
+            virtualenv_libpath="${PYENV_ROOT}/versions/${version}/lib"
+          fi
+        fi
+        virtualenv_orig_prefix="$(find "${virtualenv_libpath}/" -maxdepth 2 -type f -and -name "orig-prefix.txt" 2>/dev/null | head -1)"
+        if [ -f "${virtualenv_orig_prefix}" ]; then
+          virtualenv_prefix="$(cat "${virtualenv_orig_prefix}" 2>/dev/null || true)"
+        fi
+      fi
+      virtualenv_command_path="${virtualenv_prefix}/bin/${PYENV_COMMAND_PATH##*/}"
+      if [ -x "${virtualenv_command_path}" ]; then
+        PYENV_COMMAND_PATH="${virtualenv_command_path}"
+      fi
+    fi
+  fi
+fi

etc/pyenv.d/which/system-site-packages.bash

@@ -0,0 +1,54 @@
+# if virtualenv is created with `--system-site-packages`,
+# looks up executables for source version as well if none is
+# installed in the virtualenv.
+# https://github.com/yyuu/pyenv-virtualenv/issues/62
+
+if [ ! -x "${PYENV_COMMAND_PATH}" ]; then
+  OLDIFS="${IFS}"
+  IFS=:
+  version="$(pyenv-version-name)"
+  IFS="${OLDIFS}"
+  if [ -f "${PYENV_ROOT}/versions/${version}/bin/activate" ]; then
+    unset include_system_site_packages
+    if [ -f "${PYENV_ROOT}/versions/${version}/bin/conda" ]; then
+      : # do nothing for conda's environments
+    else
+      if [ -f "${PYENV_ROOT}/versions/${version}/pyvenv.cfg" ]; then
+        # venv
+        virtualenv_binpath="$(cut -b 1-1024 "${PYENV_ROOT}/versions/${version}/pyvenv.cfg" | sed -n '/^ *home *= */s///p' || true)"
+        virtualenv_prefix="${virtualenv_binpath%/bin}"
+        if grep -q -i "include-system-site-packages *= *true" "${PYENV_ROOT}/versions/${version}/pyvenv.cfg" 1>/dev/null 2>&1; then
+          include_system_site_packages=1
+        fi
+      else
+        # virtualenv
+        if [ -d "${PYENV_ROOT}/versions/${version}/Lib" ]; then
+          # jython
+          virtualenv_libpath="${PYENV_ROOT}/versions/${version}/Lib"
+        else
+          if [ -d "${PYENV_ROOT}/versions/${version}/lib-python" ]; then
+            # pypy
+            virtualenv_libpath="${PYENV_ROOT}/versions/${version}/lib-python"
+          else
+            virtualenv_libpath="${PYENV_ROOT}/versions/${version}/lib"
+          fi
+        fi
+        no_global_site_packages="$(find "${virtualenv_libpath}/" -maxdepth 2 -type f -and -name "no-global-site-packages.txt" 2>/dev/null | head -1)"
+        if [ ! -f "${no_global_site_packages}" ]; then
+          include_system_site_packages=1
+        fi
+        virtualenv_orig_prefix="$(find "${virtualenv_libpath}/" -maxdepth 2 -type f -and -name "orig-prefix.txt" 2>/dev/null | head -1)"
+        if [ -f "${virtualenv_orig_prefix}" ]; then
+          virtualenv_prefix="$(cat "${virtualenv_orig_prefix}" 2>/dev/null || true)"
+        fi
+      fi
+      if [ -n "${include_system_site_packages}" ] && [ -n "${virtualenv_prefix}" ]; then
+        # virtualenv is created with `--system-site-packages`
+        virtualenv_command_path="${virtualenv_prefix}/bin/${PYENV_COMMAND_PATH##*/}"
+        if [ -x "${virtualenv_command_path}" ]; then
+          PYENV_COMMAND_PATH="${virtualenv_command_path}"
+        fi
+      fi
+    fi
+  fi
+fi

install.sh

@@ -1,17 +1,33 @@
 #!/bin/sh
+# Usage: PREFIX=/usr/local ./install.sh
+#
+# Installs pyenv-virtualenv under $PREFIX.
 
 set -e
 
+cd "$(dirname "$0")"
+
 if [ -z "${PREFIX}" ]; then
   PREFIX="/usr/local"
 fi
 
 BIN_PATH="${PREFIX}/bin"
+LIBEXEC_PATH="${PREFIX}/libexec"
+SHIMS_PATH="${PREFIX}/shims"
+HOOKS_PATH="${PREFIX}/etc/pyenv.d"
 
-mkdir -p "${BIN_PATH}"
+mkdir -p "$BIN_PATH"
+mkdir -p "$LIBEXEC_PATH"
+mkdir -p "$SHIMS_PATH"
+mkdir -p "$HOOKS_PATH"
 
-for file in bin/*; do
-  cp "${file}" "${BIN_PATH}"
+install -p bin/* "$BIN_PATH"
+install -p libexec/* "$LIBEXEC_PATH"
+install -p shims/* "$SHIMS_PATH"
+for hook in etc/pyenv.d/*; do
+  if [ -d "$hook" ]; then
+    cp -RPp "$hook" "$HOOKS_PATH"
+  else
+    install -p -m 0644 "$hook" "$HOOKS_PATH"
+  fi
 done
-
-echo "Installed pyenv-virtualenv at ${PREFIX}"

libexec/pyenv-virtualenv-realpath

@@ -0,0 +1,50 @@
+#!/usr/bin/env bash
+# Summary: Substitute realpath if unavailable as a builtin or file
+# Usage: . pyenv-virtualenv-realpath
+
+if ! {
+    enable -f "${BASH_SOURCE%/*}"/../../../libexec/pyenv-realpath.dylib realpath ||
+      type realpath
+  } >/dev/null 2>&1; then
+  if [ -n "$PYENV_NATIVE_EXT" ]; then
+    echo "pyenv: failed to load \`realpath' builtin" >&2
+    exit 1
+  fi
+
+  READLINK=$(type -p greadlink readlink | head -1)
+  if [ -z "$READLINK" ]; then
+    echo "pyenv: cannot find readlink - are you missing GNU coreutils?" >&2
+    exit 1
+  fi
+
+  resolve_link() {
+    $READLINK "$1"
+  }
+
+  realpath() {
+    local f="$*" \
+          name dir
+    [[ $f ]] || {
+      >&2 echo ${FUNCNAME[0]}: missing operand
+      return
+    }
+    while [[ -L $f ]]; do
+      f="$(resolve_link "$f")"
+    done
+    if [[ ! -d $f ]]; then
+      name="/${f##*/}"
+      # parent?
+      dir="${f%/*}"
+      if [[ $dir == $f ]]; then
+        #lacks /: parent is current directory
+        f="$PWD"
+      else
+        f="$dir"
+      fi
+    fi
+    #absolute directory
+    dir="$(cd "$f"
+           pwd)"
+    echo "$dir$name"
+  }
+fi

shims/activate

@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+if [[ "$0" != "${BASH_SOURCE}" ]]; then
+  eval "$(pyenv sh-activate --verbose "$@" || true)"
+else
+  echo "pyenv-virtualenv: activate must be sourced. Run 'source activate envname' instead of 'activate envname'" 1>&2
+  false
+fi

shims/deactivate

@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+if [[ "$0" != "${BASH_SOURCE}" ]]; then
+  eval "$(pyenv sh-deactivate --verbose "$@" || true)"
+else
+  echo "pyenv-virtualenv: deactivate must be sourced. Run 'source deactivate' instead of 'deactivate'" 1>&2
+  false
+fi

test/activate.bats

@@ -0,0 +1,500 @@
+#!/usr/bin/env bats
+
+load test_helper
+
+setup() {
+  export HOME="${TMP}"
+  export PYENV_ROOT="${TMP}/pyenv"
+  unset PYENV_VERSION
+  unset PYENV_ACTIVATE_SHELL
+  unset VIRTUAL_ENV
+  unset CONDA_DEFAULT_ENV
+  unset PYTHONHOME
+  unset _OLD_VIRTUAL_PYTHONHOME
+  unset PYENV_VIRTUALENV_VERBOSE_ACTIVATE
+  unset PYENV_VIRTUALENV_DISABLE_PROMPT
+  unset PYENV_VIRTUAL_ENV_DISABLE_PROMPT
+  unset VIRTUAL_ENV_DISABLE_PROMPT
+  unset PYENV_VIRTUALENV_PROMPT
+  unset _OLD_VIRTUAL_PS1
+  stub pyenv-hooks "activate : echo"
+}
+
+@test "activate virtualenv from current version" {
+  export PYENV_VIRTUALENV_INIT=1
+
+  stub pyenv-version-name "echo venv"
+  stub pyenv-virtualenv-prefix "venv : echo \"${PYENV_ROOT}/versions/venv\""
+  stub pyenv-prefix "venv : echo \"${PYENV_ROOT}/versions/venv\""
+  stub pyenv-sh-deactivate "--force --quiet : echo deactivated"
+
+  PYENV_SHELL="bash" PYENV_VERSION="venv" run pyenv-sh-activate
+
+  assert_success
+  assert_output <<EOS
+deactivated
+export PYENV_VIRTUAL_ENV="${PYENV_ROOT}/versions/venv";
+export VIRTUAL_ENV="${PYENV_ROOT}/versions/venv";
+export _OLD_VIRTUAL_PS1="\${PS1:-}";
+export PS1="(venv) \${PS1:-}";
+EOS
+
+  unstub pyenv-version-name
+  unstub pyenv-virtualenv-prefix
+  unstub pyenv-prefix
+  unstub pyenv-sh-deactivate
+}
+
+@test "activate virtualenv from current version with custom prompt" {
+  export PYENV_VIRTUALENV_INIT=1
+
+  stub pyenv-version-name "echo venv"
+  stub pyenv-virtualenv-prefix "venv : echo \"${PYENV_ROOT}/versions/venv\""
+  stub pyenv-prefix "venv : echo \"${PYENV_ROOT}/versions/venv\""
+  stub pyenv-sh-deactivate "--force --quiet : echo deactivated"
+
+  PYENV_SHELL="bash" PYENV_VERSION="venv" PYENV_VIRTUALENV_PROMPT='venv:{venv}' run pyenv-sh-activate
+
+  assert_success
+  assert_output <<EOS
+deactivated
+export PYENV_VIRTUAL_ENV="${PYENV_ROOT}/versions/venv";
+export VIRTUAL_ENV="${PYENV_ROOT}/versions/venv";
+export _OLD_VIRTUAL_PS1="\${PS1:-}";
+export PS1="venv:venv \${PS1:-}";
+EOS
+
+  unstub pyenv-version-name
+  unstub pyenv-virtualenv-prefix
+  unstub pyenv-prefix
+  unstub pyenv-sh-deactivate
+}
+
+@test "activate virtualenv from current version (quiet)" {
+  export PYENV_VIRTUALENV_INIT=1
+
+  stub pyenv-version-name "echo venv"
+  stub pyenv-virtualenv-prefix "venv : echo \"${PYENV_ROOT}/versions/venv\""
+  stub pyenv-prefix "venv : echo \"${PYENV_ROOT}/versions/venv\""
+  stub pyenv-sh-deactivate "--force --quiet : echo deactivated"
+
+  PYENV_SHELL="bash" PYENV_VERSION="venv" run pyenv-sh-activate --quiet
+
+  assert_success
+  assert_output <<EOS
+deactivated
+export PYENV_VIRTUAL_ENV="${PYENV_ROOT}/versions/venv";
+export VIRTUAL_ENV="${PYENV_ROOT}/versions/venv";
+export _OLD_VIRTUAL_PS1="\${PS1:-}";
+export PS1="(venv) \${PS1:-}";
+EOS
+
+  unstub pyenv-version-name
+  unstub pyenv-virtualenv-prefix
+  unstub pyenv-prefix
+  unstub pyenv-sh-deactivate
+}
+
+@test "activate virtualenv from current version (verbose)" {
+  export PYENV_VIRTUALENV_INIT=1
+  export PYENV_VIRTUALENV_VERBOSE_ACTIVATE=1
+
+  stub pyenv-version-name "echo venv"
+  stub pyenv-virtualenv-prefix "venv : echo \"${PYENV_ROOT}/versions/venv\""
+  stub pyenv-prefix "venv : echo \"${PYENV_ROOT}/versions/venv\""
+  stub pyenv-sh-deactivate "--force --quiet : echo deactivated"
+
+  PYENV_SHELL="bash" PYENV_VERSION="venv" run pyenv-sh-activate --verbose
+
+  assert_success
+  assert_output <<EOS
+deactivated
+pyenv-virtualenv: activate venv
+export PYENV_VIRTUAL_ENV="${PYENV_ROOT}/versions/venv";
+export VIRTUAL_ENV="${PYENV_ROOT}/versions/venv";
+export _OLD_VIRTUAL_PS1="\${PS1:-}";
+export PS1="(venv) \${PS1:-}";
+EOS
+
+  unstub pyenv-version-name
+  unstub pyenv-virtualenv-prefix
+  unstub pyenv-prefix
+  unstub pyenv-sh-deactivate
+}
+
+@test "activate virtualenv from current version (without pyenv-virtualenv-init)" {
+  export PYENV_VIRTUALENV_INIT=
+
+  stub pyenv-version-name "echo venv"
+  stub pyenv-virtualenv-prefix "venv : echo \"${PYENV_ROOT}/versions/venv\""
+  stub pyenv-prefix "venv : echo \"${PYENV_ROOT}/versions/venv\""
+  stub pyenv-sh-deactivate "--force --quiet : echo deactivated"
+
+  PYENV_SHELL="bash" PYENV_VERSION="venv" run pyenv-sh-activate
+
+  assert_success
+  assert_output <<EOS
+deactivated
+export PYENV_VERSION="venv";
+export PYENV_ACTIVATE_SHELL=1;
+export PYENV_VIRTUAL_ENV="${PYENV_ROOT}/versions/venv";
+export VIRTUAL_ENV="${PYENV_ROOT}/versions/venv";
+export _OLD_VIRTUAL_PS1="\${PS1:-}";
+export PS1="(venv) \${PS1:-}";
+EOS
+
+  unstub pyenv-version-name
+  unstub pyenv-virtualenv-prefix
+  unstub pyenv-prefix
+  unstub pyenv-sh-deactivate
+}
+
+@test "activate virtualenv from current version (fish)" {
+  export PYENV_VIRTUALENV_INIT=1
+
+  stub pyenv-version-name "echo venv"
+  stub pyenv-virtualenv-prefix "venv : echo \"${PYENV_ROOT}/versions/venv\""
+  stub pyenv-prefix "venv : echo \"${PYENV_ROOT}/versions/venv\""
+  stub pyenv-sh-deactivate "--force --quiet : echo deactivated"
+
+  PYENV_SHELL="fish" PYENV_VERSION="venv" run pyenv-sh-activate
+
+  assert_success
+  assert_output <<EOS
+deactivated
+set -gx PYENV_VIRTUAL_ENV "${PYENV_ROOT}/versions/venv";
+set -gx VIRTUAL_ENV "${PYENV_ROOT}/versions/venv";
+functions -e _pyenv_old_prompt              # remove old prompt function if exists. 
+                                            # since everything is in memory, it's safe to
+                                            # remove it.
+functions -c fish_prompt _pyenv_old_prompt  # backup old prompt function
+
+# from python-venv
+function fish_prompt
+    set -l prompt (_pyenv_old_prompt)       # call old prompt function first since it might 
+                                            # read exit status
+    echo -n "(venv) "                    # add virtualenv to prompt
+    string join -- \n \$prompt              # handle multiline prompts
+end
+EOS
+
+  unstub pyenv-version-name
+  unstub pyenv-virtualenv-prefix
+  unstub pyenv-prefix
+  unstub pyenv-sh-deactivate
+}
+
+@test "activate virtualenv from current version (fish) (without pyenv-virtualenv-init)" {
+  export PYENV_VIRTUALENV_INIT=
+
+  stub pyenv-version-name "echo venv"
+  stub pyenv-virtualenv-prefix "venv : echo \"${PYENV_ROOT}/versions/venv\""
+  stub pyenv-prefix "venv : echo \"${PYENV_ROOT}/versions/venv\""
+  stub pyenv-sh-deactivate "--force --quiet : echo deactivated"
+
+  PYENV_SHELL="fish" PYENV_VERSION="venv" run pyenv-sh-activate
+
+  assert_success
+  assert_output <<EOS
+deactivated
+set -gx PYENV_VERSION "venv";
+set -gx PYENV_ACTIVATE_SHELL 1;
+set -gx PYENV_VIRTUAL_ENV "${PYENV_ROOT}/versions/venv";
+set -gx VIRTUAL_ENV "${PYENV_ROOT}/versions/venv";
+functions -e _pyenv_old_prompt              # remove old prompt function if exists. 
+                                            # since everything is in memory, it's safe to
+                                            # remove it.
+functions -c fish_prompt _pyenv_old_prompt  # backup old prompt function
+
+# from python-venv
+function fish_prompt
+    set -l prompt (_pyenv_old_prompt)       # call old prompt function first since it might 
+                                            # read exit status
+    echo -n "(venv) "                    # add virtualenv to prompt
+    string join -- \n \$prompt              # handle multiline prompts
+end
+EOS
+
+  unstub pyenv-version-name
+  unstub pyenv-virtualenv-prefix
+  unstub pyenv-prefix
+  unstub pyenv-sh-deactivate
+}
+
+@test "activate virtualenv from command-line argument" {
+  export PYENV_VIRTUALENV_INIT=1
+
+  stub pyenv-virtualenv-prefix "venv27 : echo \"${PYENV_ROOT}/versions/venv27\""
+  stub pyenv-prefix "venv27 : echo \"${PYENV_ROOT}/versions/venv27\""
+  stub pyenv-sh-deactivate "--force --quiet : echo deactivated"
+
+  PYENV_SHELL="bash" PYENV_VERSION="venv" run pyenv-sh-activate "venv27"
+
+  assert_success
+  assert_output <<EOS
+deactivated
+export PYENV_VERSION="venv27";
+export PYENV_ACTIVATE_SHELL=1;
+export PYENV_VIRTUAL_ENV="${PYENV_ROOT}/versions/venv27";
+export VIRTUAL_ENV="${PYENV_ROOT}/versions/venv27";
+export _OLD_VIRTUAL_PS1="\${PS1:-}";
+export PS1="(venv27) \${PS1:-}";
+EOS
+
+  unstub pyenv-virtualenv-prefix
+  unstub pyenv-prefix
+  unstub pyenv-sh-deactivate
+}
+
+@test "activate virtualenv from command-line argument (without pyenv-virtualenv-init)" {
+  export PYENV_VIRTUALENV_INIT=
+
+  stub pyenv-virtualenv-prefix "venv27 : echo \"${PYENV_ROOT}/versions/venv27\""
+  stub pyenv-prefix "venv27 : echo \"${PYENV_ROOT}/versions/venv27\""
+  stub pyenv-sh-deactivate "--force --quiet : echo deactivated"
+
+  PYENV_SHELL="bash" PYENV_VERSION="venv" run pyenv-sh-activate "venv27"
+
+  assert_success
+  assert_output <<EOS
+deactivated
+export PYENV_VERSION="venv27";
+export PYENV_ACTIVATE_SHELL=1;
+export PYENV_VIRTUAL_ENV="${PYENV_ROOT}/versions/venv27";
+export VIRTUAL_ENV="${PYENV_ROOT}/versions/venv27";
+export _OLD_VIRTUAL_PS1="\${PS1:-}";
+export PS1="(venv27) \${PS1:-}";
+EOS
+
+  unstub pyenv-virtualenv-prefix
+  unstub pyenv-prefix
+  unstub pyenv-sh-deactivate
+}
+
+@test "activate virtualenv from command-line argument (fish)" {
+  export PYENV_VIRTUALENV_INIT=1
+
+  stub pyenv-virtualenv-prefix "venv27 : echo \"${PYENV_ROOT}/versions/venv27\""
+  stub pyenv-prefix "venv27 : echo \"${PYENV_ROOT}/versions/venv27\""
+  stub pyenv-sh-deactivate "--force --quiet : echo deactivated"
+
+  PYENV_SHELL="fish" PYENV_VERSION="venv" run pyenv-sh-activate "venv27"
+
+  assert_success
+  assert_output <<EOS
+deactivated
+set -gx PYENV_VERSION "venv27";
+set -gx PYENV_ACTIVATE_SHELL 1;
+set -gx PYENV_VIRTUAL_ENV "${PYENV_ROOT}/versions/venv27";
+set -gx VIRTUAL_ENV "${PYENV_ROOT}/versions/venv27";
+functions -e _pyenv_old_prompt              # remove old prompt function if exists. 
+                                            # since everything is in memory, it's safe to
+                                            # remove it.
+functions -c fish_prompt _pyenv_old_prompt  # backup old prompt function
+
+# from python-venv
+function fish_prompt
+    set -l prompt (_pyenv_old_prompt)       # call old prompt function first since it might 
+                                            # read exit status
+    echo -n "(venv27) "                    # add virtualenv to prompt
+    string join -- \n \$prompt              # handle multiline prompts
+end
+EOS
+
+  unstub pyenv-virtualenv-prefix
+  unstub pyenv-prefix
+  unstub pyenv-sh-deactivate
+}
+
+@test "activate virtualenv from command-line argument (fish) (without pyenv-virtualenv-init)" {
+  export PYENV_VIRTUALENV_INIT=
+
+  stub pyenv-virtualenv-prefix "venv27 : echo \"${PYENV_ROOT}/versions/venv27\""
+  stub pyenv-prefix "venv27 : echo \"${PYENV_ROOT}/versions/venv27\""
+  stub pyenv-sh-deactivate "--force --quiet : echo deactivated"
+
+  PYENV_SHELL="fish" PYENV_VERSION="venv" run pyenv-sh-activate "venv27"
+
+  assert_success
+  assert_output <<EOS
+deactivated
+set -gx PYENV_VERSION "venv27";
+set -gx PYENV_ACTIVATE_SHELL 1;
+set -gx PYENV_VIRTUAL_ENV "${PYENV_ROOT}/versions/venv27";
+set -gx VIRTUAL_ENV "${PYENV_ROOT}/versions/venv27";
+functions -e _pyenv_old_prompt              # remove old prompt function if exists. 
+                                            # since everything is in memory, it's safe to
+                                            # remove it.
+functions -c fish_prompt _pyenv_old_prompt  # backup old prompt function
+
+# from python-venv
+function fish_prompt
+    set -l prompt (_pyenv_old_prompt)       # call old prompt function first since it might 
+                                            # read exit status
+    echo -n "(venv27) "                    # add virtualenv to prompt
+    string join -- \n \$prompt              # handle multiline prompts
+end
+EOS
+
+  unstub pyenv-virtualenv-prefix
+  unstub pyenv-prefix
+  unstub pyenv-sh-deactivate
+}
+
+@test "unset invokes deactivate" {
+  export PYENV_VIRTUAL_ENV="${PYENV_ROOT}/versions/venv"
+  export VIRTUAL_ENV="${PYENV_ROOT}/versions/venv"
+  export PYENV_ACTIVATE_SHELL=
+
+  stub pyenv-sh-deactivate " : echo deactivated"
+
+  run pyenv-sh-activate --unset
+
+  assert_success
+  assert_output <<EOS
+deactivated
+EOS
+
+  unstub pyenv-sh-deactivate
+}
+
+@test "should fail if the version is not a virtualenv" {
+  stub pyenv-virtualenv-prefix "3.3.3 : false"
+  stub pyenv-version-name " : echo 3.3.3"
+  stub pyenv-virtualenv-prefix "3.3.3/envs/3.3.3 : false"
+
+  run pyenv-sh-activate "3.3.3"
+
+  assert_failure
+  assert_output <<EOS
+pyenv-virtualenv: version \`3.3.3' is not a virtualenv
+false
+EOS
+
+  unstub pyenv-virtualenv-prefix
+  unstub pyenv-version-name
+}
+
+@test "should fail if the version is not a virtualenv (quiet)" {
+  stub pyenv-virtualenv-prefix "3.3.3 : false"
+  stub pyenv-version-name " : echo 3.3.3"
+  stub pyenv-virtualenv-prefix "3.3.3/envs/3.3.3 : false"
+
+  run pyenv-sh-activate --quiet "3.3.3"
+
+  assert_failure
+  assert_output <<EOS
+false
+EOS
+
+  unstub pyenv-virtualenv-prefix
+  unstub pyenv-version-name
+}
+
+@test "should fail if there are multiple versions" {
+  stub pyenv-virtualenv-prefix "venv : true"
+  stub pyenv-virtualenv-prefix "venv27 : true"
+
+  run pyenv-sh-activate "venv" "venv27"
+
+  assert_failure
+  assert_output <<EOS
+pyenv-virtualenv: cannot activate multiple versions at once: venv venv27
+false
+EOS
+
+  unstub pyenv-virtualenv-prefix
+}
+
+@test "should fail if there are multiple virtualenvs (quiet)" {
+  stub pyenv-virtualenv-prefix "venv : true"
+  stub pyenv-virtualenv-prefix "venv27 : true"
+
+  run pyenv-sh-activate --quiet "venv" "venv27"
+
+  assert_failure
+  assert_output <<EOS
+false
+EOS
+
+  unstub pyenv-virtualenv-prefix
+}
+
+@test "should fail if the first version is not a virtualenv" {
+  export PYENV_VIRTUALENV_INIT=1
+
+  stub pyenv-virtualenv-prefix "2.7.10 : false"
+  stub pyenv-version-name " : echo 2.7.10"
+  stub pyenv-virtualenv-prefix "2.7.10/envs/2.7.10 : false"
+
+  run pyenv-sh-activate "2.7.10" "venv27"
+
+  assert_failure
+  assert_output <<EOS
+pyenv-virtualenv: version \`2.7.10' is not a virtualenv
+false
+EOS
+
+  unstub pyenv-virtualenv-prefix
+  unstub pyenv-version-name
+}
+
+@test "activate if the first virtualenv is a virtualenv" {
+  export PYENV_VIRTUALENV_INIT=1
+
+  stub pyenv-sh-deactivate "--force --quiet : echo deactivated"
+  stub pyenv-virtualenv-prefix "venv27 : echo \"${PYENV_ROOT}/versions/venv27\""
+  stub pyenv-virtualenv-prefix "2.7.10 : false"
+  stub pyenv-prefix "venv27 : echo \"${PYENV_ROOT}/versions/venv27\""
+
+  PYENV_SHELL="bash" run pyenv-sh-activate "venv27" "2.7.10"
+
+  assert_success
+  assert_output <<EOS
+deactivated
+export PYENV_VERSION="venv27:2.7.10";
+export PYENV_ACTIVATE_SHELL=1;
+export PYENV_VIRTUAL_ENV="${PYENV_ROOT}/versions/venv27";
+export VIRTUAL_ENV="${PYENV_ROOT}/versions/venv27";
+export _OLD_VIRTUAL_PS1="\${PS1:-}";
+export PS1="(venv27) \${PS1:-}";
+EOS
+
+  unstub pyenv-sh-deactivate
+  unstub pyenv-virtualenv-prefix
+  unstub pyenv-prefix
+}
+
+@test "do nothing if a 3rd-party virtualenv is active" {
+  export PYENV_VIRTUALENV_INIT=1
+  export VIRTUAL_ENV="${TMP}/venv-3rd-party"
+  unset PYENV_VIRTUAL_ENV
+
+  PYENV_SHELL="bash" run pyenv-sh-activate "venv"
+
+  assert_success
+  assert_output <<EOS
+pyenv-virtualenv: virtualenv \`${TMP}/venv-3rd-party' is already activated
+true
+EOS
+}
+
+@test "do nothing if a 3rd-party virtualenv is active over ours" {
+  export PYENV_VIRTUALENV_INIT=1
+  export VIRTUAL_ENV="${TMP}/venv-3rd-party"
+  export PYENV_VIRTUAL_ENV="${PYENV_ROOT}/versions/venv"
+
+  PYENV_SHELL="bash" run pyenv-sh-activate "venv"
+
+  assert_success
+  assert_output <<EOS
+pyenv-virtualenv: virtualenv \`${TMP}/venv-3rd-party' is already activated
+true
+EOS
+}
+
+@test "should fail if activate is invoked as a command" {
+  run pyenv-activate
+
+  assert_failure
+}

test/conda-activate.bats

@@ -0,0 +1,215 @@
+#!/usr/bin/env bats
+
+load test_helper
+
+setup() {
+  export HOME="${TMP}"
+  export PYENV_ROOT="${TMP}/pyenv"
+  unset PYENV_VERSION
+  unset PYENV_ACTIVATE_SHELL
+  unset PYENV_VIRTUAL_ENV
+  unset VIRTUAL_ENV
+  unset CONDA_DEFAULT_ENV
+  unset PYTHONHOME
+  unset _OLD_VIRTUAL_PYTHONHOME
+  unset PYENV_VIRTUALENV_VERBOSE_ACTIVATE
+  unset PYENV_VIRTUALENV_DISABLE_PROMPT
+  unset PYENV_VIRTUAL_ENV_DISABLE_PROMPT
+  unset VIRTUAL_ENV_DISABLE_PROMPT
+  unset PYENV_VIRTUALENV_PROMPT
+  unset _OLD_VIRTUAL_PS1
+  stub pyenv-hooks "activate : echo"
+}
+
+teardown() {
+  unstub pyenv-hooks
+}
+
+@test "activate conda root from current version" {
+  export PYENV_VIRTUALENV_INIT=1
+
+  setup_conda "anaconda-2.3.0"
+  stub pyenv-version-name "echo anaconda-2.3.0"
+  stub pyenv-virtualenv-prefix "anaconda-2.3.0 : echo \"${PYENV_ROOT}/versions/anaconda-2.3.0\""
+  stub pyenv-prefix "anaconda-2.3.0 : echo \"${PYENV_ROOT}/versions/anaconda-2.3.0\""
+  stub pyenv-sh-deactivate "--force --quiet : echo deactivated"
+
+  PYENV_SHELL="bash" PYENV_VERSION="anaconda-2.3.0" run pyenv-sh-activate
+
+  assert_success
+  assert_output <<EOS
+deactivated
+export PYENV_VIRTUAL_ENV="${PYENV_ROOT}/versions/anaconda-2.3.0";
+export VIRTUAL_ENV="${PYENV_ROOT}/versions/anaconda-2.3.0";
+export CONDA_DEFAULT_ENV="root";
+export _OLD_VIRTUAL_PS1="\${PS1:-}";
+export PS1="(anaconda-2.3.0) \${PS1:-}";
+export CONDA_PREFIX="${TMP}/pyenv/versions/anaconda-2.3.0";
+EOS
+
+  unstub pyenv-version-name
+  unstub pyenv-virtualenv-prefix
+  unstub pyenv-prefix
+  unstub pyenv-sh-deactivate
+  teardown_conda "anaconda-2.3.0"
+}
+
+@test "activate conda root from current version with custom prompt" {
+  export PYENV_VIRTUALENV_INIT=1
+
+  setup_conda "anaconda-2.3.0"
+  stub pyenv-version-name "echo anaconda-2.3.0"
+  stub pyenv-virtualenv-prefix "anaconda-2.3.0 : echo \"${PYENV_ROOT}/versions/anaconda-2.3.0\""
+  stub pyenv-prefix "anaconda-2.3.0 : echo \"${PYENV_ROOT}/versions/anaconda-2.3.0\""
+  stub pyenv-sh-deactivate "--force --quiet : echo deactivated"
+
+  PYENV_SHELL="bash" PYENV_VERSION="anaconda-2.3.0" PYENV_VIRTUALENV_PROMPT='venv:{venv}' run pyenv-sh-activate
+
+  assert_success
+  assert_output <<EOS
+deactivated
+export PYENV_VIRTUAL_ENV="${PYENV_ROOT}/versions/anaconda-2.3.0";
+export VIRTUAL_ENV="${PYENV_ROOT}/versions/anaconda-2.3.0";
+export CONDA_DEFAULT_ENV="root";
+export _OLD_VIRTUAL_PS1="\${PS1:-}";
+export PS1="venv:anaconda-2.3.0 \${PS1:-}";
+export CONDA_PREFIX="${TMP}/pyenv/versions/anaconda-2.3.0";
+EOS
+
+  unstub pyenv-version-name
+  unstub pyenv-virtualenv-prefix
+  unstub pyenv-prefix
+  unstub pyenv-sh-deactivate
+  teardown_conda "anaconda-2.3.0"
+}
+
+@test "activate conda root from current version (fish)" {
+  export PYENV_VIRTUALENV_INIT=1
+
+  setup_conda "anaconda-2.3.0"
+  stub pyenv-version-name "echo anaconda-2.3.0"
+  stub pyenv-virtualenv-prefix "anaconda-2.3.0 : echo \"${PYENV_ROOT}/versions/anaconda-2.3.0\""
+  stub pyenv-prefix "anaconda-2.3.0 : echo \"${PYENV_ROOT}/versions/anaconda-2.3.0\""
+  stub pyenv-sh-deactivate "--force --quiet : echo deactivated"
+
+  PYENV_SHELL="fish" PYENV_VERSION="anaconda-2.3.0" run pyenv-sh-activate
+
+  assert_success
+  assert_output <<EOS
+deactivated
+set -gx PYENV_VIRTUAL_ENV "${TMP}/pyenv/versions/anaconda-2.3.0";
+set -gx VIRTUAL_ENV "${TMP}/pyenv/versions/anaconda-2.3.0";
+set -gx CONDA_DEFAULT_ENV "root";
+functions -e _pyenv_old_prompt              # remove old prompt function if exists. 
+                                            # since everything is in memory, it's safe to
+                                            # remove it.
+functions -c fish_prompt _pyenv_old_prompt  # backup old prompt function
+
+# from python-venv
+function fish_prompt
+    set -l prompt (_pyenv_old_prompt)       # call old prompt function first since it might 
+                                            # read exit status
+    echo -n "(anaconda-2.3.0) "                    # add virtualenv to prompt
+    string join -- \n \$prompt              # handle multiline prompts
+end
+EOS
+
+  unstub pyenv-version-name
+  unstub pyenv-virtualenv-prefix
+  unstub pyenv-prefix
+  unstub pyenv-sh-deactivate
+  teardown_conda "anaconda-2.3.0"
+}
+
+@test "activate conda root from command-line argument" {
+  export PYENV_VIRTUALENV_INIT=1
+
+  setup_conda "anaconda-2.3.0"
+  setup_conda "miniconda-3.9.1"
+  stub pyenv-virtualenv-prefix "miniconda-3.9.1 : echo \"${PYENV_ROOT}/versions/miniconda-3.9.1\""
+  stub pyenv-prefix "miniconda-3.9.1 : echo \"${PYENV_ROOT}/versions/miniconda-3.9.1\""
+  stub pyenv-sh-deactivate "--force --quiet : echo deactivated"
+
+  PYENV_SHELL="bash" PYENV_VERSION="anaconda-2.3.0" run pyenv-sh-activate "miniconda-3.9.1"
+
+  assert_success
+  assert_output <<EOS
+deactivated
+export PYENV_VERSION="miniconda-3.9.1";
+export PYENV_ACTIVATE_SHELL=1;
+export PYENV_VIRTUAL_ENV="${PYENV_ROOT}/versions/miniconda-3.9.1";
+export VIRTUAL_ENV="${PYENV_ROOT}/versions/miniconda-3.9.1";
+export CONDA_DEFAULT_ENV="root";
+export _OLD_VIRTUAL_PS1="\${PS1:-}";
+export PS1="(miniconda-3.9.1) \${PS1:-}";
+export CONDA_PREFIX="${TMP}/pyenv/versions/miniconda-3.9.1";
+EOS
+
+  unstub pyenv-virtualenv-prefix
+  unstub pyenv-prefix
+  unstub pyenv-sh-deactivate
+  teardown_conda "anaconda-2.3.0"
+  teardown_conda "miniconda-3.9.1"
+}
+
+@test "activate conda env from current version" {
+  export PYENV_VIRTUALENV_INIT=1
+
+  setup_conda "anaconda-2.3.0" "foo"
+  stub pyenv-version-name "echo anaconda-2.3.0/envs/foo"
+  stub pyenv-virtualenv-prefix "anaconda-2.3.0/envs/foo : echo \"${PYENV_ROOT}/versions/anaconda-2.3.0/envs/foo\""
+  stub pyenv-prefix "anaconda-2.3.0/envs/foo : echo \"${PYENV_ROOT}/versions/anaconda-2.3.0/envs/foo\""
+  stub pyenv-sh-deactivate "--force --quiet : echo deactivated"
+
+  PYENV_SHELL="bash" PYENV_VERSION="anaconda-2.3.0/envs/foo" run pyenv-sh-activate
+
+  assert_success
+  assert_output <<EOS
+deactivated
+export PYENV_VIRTUAL_ENV="${PYENV_ROOT}/versions/anaconda-2.3.0/envs/foo";
+export VIRTUAL_ENV="${PYENV_ROOT}/versions/anaconda-2.3.0/envs/foo";
+export CONDA_DEFAULT_ENV="foo";
+export _OLD_VIRTUAL_PS1="\${PS1:-}";
+export PS1="(anaconda-2.3.0/envs/foo) \${PS1:-}";
+export CONDA_PREFIX="${TMP}/pyenv/versions/anaconda-2.3.0/envs/foo";
+. "${PYENV_ROOT}/versions/anaconda-2.3.0/envs/foo/etc/conda/activate.d/activate.sh";
+EOS
+
+  unstub pyenv-version-name
+  unstub pyenv-virtualenv-prefix
+  unstub pyenv-prefix
+  unstub pyenv-sh-deactivate
+  teardown_conda "anaconda-2.3.0" "foo"
+}
+
+@test "activate conda env from command-line argument" {
+  export PYENV_VIRTUALENV_INIT=1
+
+  setup_conda "anaconda-2.3.0" "foo"
+  setup_conda "miniconda-3.9.1" "bar"
+  stub pyenv-virtualenv-prefix "miniconda-3.9.1/envs/bar : echo \"${PYENV_ROOT}/versions/miniconda-3.9.1\""
+  stub pyenv-prefix "miniconda-3.9.1/envs/bar : echo \"${PYENV_ROOT}/versions/miniconda-3.9.1/envs/bar\""
+  stub pyenv-sh-deactivate "--force --quiet : echo deactivated"
+
+  PYENV_SHELL="bash" PYENV_VERSION="anaconda-2.3.0/envs/foo" run pyenv-sh-activate "miniconda-3.9.1/envs/bar"
+
+  assert_success
+  assert_output <<EOS
+deactivated
+export PYENV_VERSION="miniconda-3.9.1/envs/bar";
+export PYENV_ACTIVATE_SHELL=1;
+export PYENV_VIRTUAL_ENV="${PYENV_ROOT}/versions/miniconda-3.9.1/envs/bar";
+export VIRTUAL_ENV="${PYENV_ROOT}/versions/miniconda-3.9.1/envs/bar";
+export CONDA_DEFAULT_ENV="bar";
+export _OLD_VIRTUAL_PS1="\${PS1:-}";
+export PS1="(miniconda-3.9.1/envs/bar) \${PS1:-}";
+export CONDA_PREFIX="${TMP}/pyenv/versions/miniconda-3.9.1/envs/bar";
+. "${PYENV_ROOT}/versions/miniconda-3.9.1/envs/bar/etc/conda/activate.d/activate.sh";
+EOS
+
+  unstub pyenv-virtualenv-prefix
+  unstub pyenv-prefix
+  unstub pyenv-sh-deactivate
+  teardown_conda "anaconda-2.3.0" "foo"
+  teardown_conda "miniconda-3.9.1" "bar"
+}

test/conda-deactivate.bats

@@ -0,0 +1,135 @@
+#!/usr/bin/env bats
+
+load test_helper
+
+setup() {
+  export PYENV_ROOT="${TMP}/pyenv"
+  unset PYENV_VERSION
+  unset PYENV_ACTIVATE_SHELL
+  unset PYENV_VIRTUAL_ENV
+  unset VIRTUAL_ENV
+  unset CONDA_DEFAULT_ENV
+  unset PYTHONHOME
+  unset _OLD_VIRTUAL_PYTHONHOME
+  unset PYENV_VIRTUALENV_VERBOSE_ACTIVATE
+  unset PYENV_VIRTUALENV_DISABLE_PROMPT
+  unset PYENV_VIRTUAL_ENV_DISABLE_PROMPT
+  unset VIRTUAL_ENV_DISABLE_PROMPT
+  unset _OLD_VIRTUAL_PS1
+  stub pyenv-hooks "deactivate : echo"
+}
+
+teardown() {
+  unstub pyenv-hooks
+}
+
+@test "deactivate conda root" {
+  export PYENV_VIRTUAL_ENV="${PYENV_ROOT}/versions/anaconda-2.3.0"
+  export VIRTUAL_ENV="${PYENV_ROOT}/versions/anaconda-2.3.0"
+  export PYENV_ACTIVATE_SHELL=
+  export CONDA_DEFAULT_ENV="root"
+
+  setup_conda "anaconda-2.3.0"
+
+  PYENV_SHELL="bash" run pyenv-sh-deactivate
+
+  assert_success
+  assert_output <<EOS
+unset CONDA_PREFIX
+unset PYENV_VIRTUAL_ENV;
+unset VIRTUAL_ENV;
+unset CONDA_DEFAULT_ENV;
+if [ -n "\${_OLD_VIRTUAL_PATH:-}" ]; then
+  export PATH="\${_OLD_VIRTUAL_PATH}";
+  unset _OLD_VIRTUAL_PATH;
+fi;
+if [ -n "\${_OLD_VIRTUAL_PYTHONHOME:-}" ]; then
+  export PYTHONHOME="\${_OLD_VIRTUAL_PYTHONHOME}";
+  unset _OLD_VIRTUAL_PYTHONHOME;
+fi;
+if [ -n "\${_OLD_VIRTUAL_PS1:-}" ]; then
+  export PS1="\${_OLD_VIRTUAL_PS1}";
+  unset _OLD_VIRTUAL_PS1;
+fi;
+if declare -f deactivate 1>/dev/null 2>&1; then
+  unset -f deactivate;
+fi;
+EOS
+
+  teardown_conda "anaconda-2.3.0"
+}
+
+@test "deactivate conda root (fish)" {
+  export PYENV_VIRTUAL_ENV="${PYENV_ROOT}/versions/anaconda-2.3.0"
+  export VIRTUAL_ENV="${PYENV_ROOT}/versions/anaconda-2.3.0"
+  export PYENV_ACTIVATE_SHELL=
+  export CONDA_DEFAULT_ENV="root"
+
+  setup_conda "anaconda-2.3.0"
+
+  PYENV_SHELL="fish" run pyenv-sh-deactivate
+
+  assert_success
+  assert_output <<EOS
+set -e PYENV_VIRTUAL_ENV;
+set -e VIRTUAL_ENV;
+set -e CONDA_DEFAULT_ENV;
+if [ -n "\$_OLD_VIRTUAL_PATH" ];
+  set -gx PATH "\$_OLD_VIRTUAL_PATH";
+  set -e _OLD_VIRTUAL_PATH;
+end;
+if [ -n "\$_OLD_VIRTUAL_PYTHONHOME" ];
+  set -gx PYTHONHOME "\$_OLD_VIRTUAL_PYTHONHOME";
+  set -e _OLD_VIRTUAL_PYTHONHOME;
+end;
+# check if old prompt function exists
+if functions -q _pyenv_old_prompt
+  # remove old prompt function if exists.
+  functions -e fish_prompt
+  functions -c _pyenv_old_prompt fish_prompt
+  functions -e _pyenv_old_prompt
+end
+if functions -q deactivate;
+  functions -e deactivate;
+end;
+EOS
+
+  teardown_conda "anaconda-2.3.0"
+}
+
+@test "deactivate conda env" {
+  export PYENV_VIRTUAL_ENV="${PYENV_ROOT}/versions/anaconda-2.3.0/envs/foo"
+  export VIRTUAL_ENV="${PYENV_ROOT}/versions/anaconda-2.3.0/envs/foo"
+  export PYENV_ACTIVATE_SHELL=
+  export CONDA_DEFAULT_ENV="foo"
+
+  setup_conda "anaconda-2.3.0" "foo"
+
+  PYENV_SHELL="bash" run pyenv-sh-deactivate
+
+  assert_success
+  assert_output <<EOS
+. "${PYENV_ROOT}/versions/anaconda-2.3.0/envs/foo/etc/conda/deactivate.d/deactivate.sh";
+unset CONDA_PREFIX
+unset PYENV_VIRTUAL_ENV;
+unset VIRTUAL_ENV;
+unset CONDA_DEFAULT_ENV;
+if [ -n "\${_OLD_VIRTUAL_PATH:-}" ]; then
+  export PATH="\${_OLD_VIRTUAL_PATH}";
+  unset _OLD_VIRTUAL_PATH;
+fi;
+if [ -n "\${_OLD_VIRTUAL_PYTHONHOME:-}" ]; then
+  export PYTHONHOME="\${_OLD_VIRTUAL_PYTHONHOME}";
+  unset _OLD_VIRTUAL_PYTHONHOME;
+fi;
+if [ -n "\${_OLD_VIRTUAL_PS1:-}" ]; then
+  export PS1="\${_OLD_VIRTUAL_PS1}";
+  unset _OLD_VIRTUAL_PS1;
+fi;
+if declare -f deactivate 1>/dev/null 2>&1; then
+  unset -f deactivate;
+fi;
+EOS
+
+  teardown_conda "anaconda-2.3.0" "foo"
+}

test/conda-prefix.bats

@@ -0,0 +1,37 @@
+#!/usr/bin/env bats
+
+load test_helper
+
+setup() {
+  export PYENV_ROOT="${TMP}/pyenv"
+}
+
+@test "display conda root" {
+  setup_conda "anaconda-2.3.0"
+  stub pyenv-version-name "echo anaconda-2.3.0"
+
+  PYENV_VERSION="anaconda-2.3.0" run pyenv-virtualenv-prefix
+
+  assert_success
+  assert_output <<OUT
+${PYENV_ROOT}/versions/anaconda-2.3.0
+OUT
+
+  unstub pyenv-version-name
+  teardown_conda "anaconda-2.3.0"
+}
+
+@test "display conda env" {
+  setup_conda "anaconda-2.3.0" "foo"
+  stub pyenv-version-name "echo anaconda-2.3.0/envs/foo"
+
+  PYENV_VERSION="anaconda-2.3.0/envs/foo" run pyenv-virtualenv-prefix
+
+  assert_success
+  assert_output <<OUT
+${PYENV_ROOT}/versions/anaconda-2.3.0/envs/foo
+OUT
+
+  unstub pyenv-version-name
+  teardown_conda "anaconda-2.3.0" "foo"
+}

test/conda.bats

@@ -0,0 +1,91 @@
+#!/usr/bin/env bats
+
+load test_helper
+
+setup() {
+  export PYENV_ROOT="${TMP}/pyenv"
+}
+
+stub_pyenv() {
+  stub pyenv-version-name "echo \${PYENV_VERSION}"
+  stub pyenv-prefix " : echo '${PYENV_ROOT}/versions/${PYENV_VERSION}'"
+  stub pyenv-hooks "virtualenv : echo"
+  stub pyenv-rehash " : echo rehashed"
+}
+
+unstub_pyenv() {
+  unstub pyenv-version-name
+  unstub pyenv-prefix
+  unstub pyenv-hooks
+  unstub pyenv-rehash
+}
+
+@test "create virtualenv by conda create" {
+  export PYENV_VERSION="miniconda3-3.16.0"
+  setup_conda "${PYENV_VERSION}"
+  stub_pyenv "${PYENV_VERSION}"
+  stub pyenv-prefix " : echo '${PYENV_ROOT}/versions/${PYENV_VERSION}'"
+  stub pyenv-virtualenv-prefix " : echo '${PYENV_ROOT}/versions/${PYENV_VERSION}'"
+  stub -N pyenv-exec "conda list * : true"
+  stub -N pyenv-exec "conda create * : echo PYENV_VERSION=\${PYENV_VERSION} \"\$@\""
+  stub pyenv-exec "python -s -m ensurepip : true"
+
+  run pyenv-virtualenv venv
+
+  assert_success
+  assert_output_wildcards <<OUT
+PYENV_VERSION=miniconda3-3.16.0 conda create --name venv --yes --file /dev/fd/*
+rehashed
+OUT
+
+  unstub_pyenv
+  unstub pyenv-virtualenv-prefix
+  unstub pyenv-exec
+  teardown_m_venv "miniconda3-3.16.0"
+}
+
+@test "create virtualenv by conda create with -p" {
+  export PYENV_VERSION="miniconda3-3.16.0"
+  setup_conda "${PYENV_VERSION}"
+  stub_pyenv "${PYENV_VERSION}"
+  stub pyenv-prefix " : echo '${PYENV_ROOT}/versions/${PYENV_VERSION}'"
+  stub pyenv-virtualenv-prefix " : echo '${PYENV_ROOT}/versions/${PYENV_VERSION}'"
+  stub pyenv-exec "conda create * : echo PYENV_VERSION=\${PYENV_VERSION} \"\$@\""
+  stub pyenv-exec "python -s -m ensurepip : true"
+
+  run pyenv-virtualenv -p python3.5 venv
+  
+  assert_success
+  assert_output <<OUT
+PYENV_VERSION=miniconda3-3.16.0 conda create --name venv --yes python=3.5
+rehashed
+OUT
+
+  unstub_pyenv
+  unstub pyenv-virtualenv-prefix
+  unstub pyenv-exec
+  teardown_m_venv "miniconda3-3.16.0"
+}
+
+@test "create virtualenv by conda create with --python" {
+  export PYENV_VERSION="miniconda3-3.16.0"
+  setup_conda "${PYENV_VERSION}"
+  stub_pyenv "${PYENV_VERSION}"
+  stub pyenv-prefix " : echo '${PYENV_ROOT}/versions/${PYENV_VERSION}'"
+  stub pyenv-virtualenv-prefix " : echo '${PYENV_ROOT}/versions/${PYENV_VERSION}'"
+  stub pyenv-exec "conda create * : echo PYENV_VERSION=\${PYENV_VERSION} \"\$@\""
+  stub pyenv-exec "python -s -m ensurepip : true"
+
+  run pyenv-virtualenv --python=python3.5 venv
+
+  assert_success
+  assert_output <<OUT
+PYENV_VERSION=miniconda3-3.16.0 conda create --name venv --yes python=3.5
+rehashed
+OUT
+
+  unstub_pyenv
+  unstub pyenv-virtualenv-prefix
+  unstub pyenv-exec
+  teardown_m_venv "miniconda3-3.16.0"
+}

test/deactivate.bats

@@ -0,0 +1,381 @@
+#!/usr/bin/env bats
+
+load test_helper
+
+setup() {
+  export PYENV_ROOT="${TMP}/pyenv"
+  unset PYENV_VERSION
+  unset PYENV_ACTIVATE_SHELL
+  unset PYENV_VIRTUAL_ENV
+  unset VIRTUAL_ENV
+  unset CONDA_DEFAULT_ENV
+  unset PYTHONHOME
+  unset _OLD_VIRTUAL_PYTHONHOME
+  unset PYENV_VIRTUALENV_VERBOSE_ACTIVATE
+  unset PYENV_VIRTUALENV_DISABLE_PROMPT
+  unset PYENV_VIRTUAL_ENV_DISABLE_PROMPT
+  unset VIRTUAL_ENV_DISABLE_PROMPT
+  unset _OLD_VIRTUAL_PS1
+  stub pyenv-hooks "deactivate : echo"
+}
+
+@test "deactivate virtualenv" {
+  export PYENV_VIRTUALENV_INIT=1
+  export PYENV_VIRTUAL_ENV="${PYENV_ROOT}/versions/venv"
+  export VIRTUAL_ENV="${PYENV_ROOT}/versions/venv"
+  export PYENV_ACTIVATE_SHELL=
+
+  PYENV_SHELL="bash" run pyenv-sh-deactivate
+
+  assert_success
+  assert_output <<EOS
+unset PYENV_VIRTUAL_ENV;
+unset VIRTUAL_ENV;
+if [ -n "\${_OLD_VIRTUAL_PATH:-}" ]; then
+  export PATH="\${_OLD_VIRTUAL_PATH}";
+  unset _OLD_VIRTUAL_PATH;
+fi;
+if [ -n "\${_OLD_VIRTUAL_PYTHONHOME:-}" ]; then
+  export PYTHONHOME="\${_OLD_VIRTUAL_PYTHONHOME}";
+  unset _OLD_VIRTUAL_PYTHONHOME;
+fi;
+if [ -n "\${_OLD_VIRTUAL_PS1:-}" ]; then
+  export PS1="\${_OLD_VIRTUAL_PS1}";
+  unset _OLD_VIRTUAL_PS1;
+fi;
+if declare -f deactivate 1>/dev/null 2>&1; then
+  unset -f deactivate;
+fi;
+EOS
+}
+
+@test "deactivate virtualenv (quiet)" {
+  export PYENV_VIRTUALENV_INIT=1
+  export PYENV_VIRTUAL_ENV="${PYENV_ROOT}/versions/venv"
+  export VIRTUAL_ENV="${PYENV_ROOT}/versions/venv"
+  export PYENV_ACTIVATE_SHELL=
+
+  PYENV_SHELL="bash" run pyenv-sh-deactivate --quiet
+
+  assert_success
+  assert_output <<EOS
+unset PYENV_VIRTUAL_ENV;
+unset VIRTUAL_ENV;
+if [ -n "\${_OLD_VIRTUAL_PATH:-}" ]; then
+  export PATH="\${_OLD_VIRTUAL_PATH}";
+  unset _OLD_VIRTUAL_PATH;
+fi;
+if [ -n "\${_OLD_VIRTUAL_PYTHONHOME:-}" ]; then
+  export PYTHONHOME="\${_OLD_VIRTUAL_PYTHONHOME}";
+  unset _OLD_VIRTUAL_PYTHONHOME;
+fi;
+if [ -n "\${_OLD_VIRTUAL_PS1:-}" ]; then
+  export PS1="\${_OLD_VIRTUAL_PS1}";
+  unset _OLD_VIRTUAL_PS1;
+fi;
+if declare -f deactivate 1>/dev/null 2>&1; then
+  unset -f deactivate;
+fi;
+EOS
+}
+
+@test "deactivate virtualenv (verbose)" {
+  export PYENV_VIRTUALENV_INIT=1
+  export PYENV_VIRTUAL_ENV="${PYENV_ROOT}/versions/venv"
+  export VIRTUAL_ENV="${PYENV_ROOT}/versions/venv"
+  export PYENV_ACTIVATE_SHELL=
+  export PYENV_VIRTUALENV_VERBOSE_ACTIVATE=1
+
+  PYENV_SHELL="bash" run pyenv-sh-deactivate --verbose
+
+  assert_success
+  assert_output <<EOS
+pyenv-virtualenv: deactivate venv
+unset PYENV_VIRTUAL_ENV;
+unset VIRTUAL_ENV;
+if [ -n "\${_OLD_VIRTUAL_PATH:-}" ]; then
+  export PATH="\${_OLD_VIRTUAL_PATH}";
+  unset _OLD_VIRTUAL_PATH;
+fi;
+if [ -n "\${_OLD_VIRTUAL_PYTHONHOME:-}" ]; then
+  export PYTHONHOME="\${_OLD_VIRTUAL_PYTHONHOME}";
+  unset _OLD_VIRTUAL_PYTHONHOME;
+fi;
+if [ -n "\${_OLD_VIRTUAL_PS1:-}" ]; then
+  export PS1="\${_OLD_VIRTUAL_PS1}";
+  unset _OLD_VIRTUAL_PS1;
+fi;
+if declare -f deactivate 1>/dev/null 2>&1; then
+  unset -f deactivate;
+fi;
+EOS
+}
+
+@test "deactivate virtualenv (with shell activation)" {
+  export PYENV_VIRTUALENV_INIT=1
+  export PYENV_VIRTUAL_ENV="${PYENV_ROOT}/versions/venv"
+  export VIRTUAL_ENV="${PYENV_ROOT}/versions/venv"
+  export PYENV_ACTIVATE_SHELL=1
+
+  PYENV_SHELL="bash" run pyenv-sh-deactivate
+
+  assert_success
+  assert_output <<EOS
+unset PYENV_VERSION;
+unset PYENV_ACTIVATE_SHELL;
+unset PYENV_VIRTUAL_ENV;
+unset VIRTUAL_ENV;
+if [ -n "\${_OLD_VIRTUAL_PATH:-}" ]; then
+  export PATH="\${_OLD_VIRTUAL_PATH}";
+  unset _OLD_VIRTUAL_PATH;
+fi;
+if [ -n "\${_OLD_VIRTUAL_PYTHONHOME:-}" ]; then
+  export PYTHONHOME="\${_OLD_VIRTUAL_PYTHONHOME}";
+  unset _OLD_VIRTUAL_PYTHONHOME;
+fi;
+if [ -n "\${_OLD_VIRTUAL_PS1:-}" ]; then
+  export PS1="\${_OLD_VIRTUAL_PS1}";
+  unset _OLD_VIRTUAL_PS1;
+fi;
+if declare -f deactivate 1>/dev/null 2>&1; then
+  unset -f deactivate;
+fi;
+EOS
+}
+
+@test "deactivate virtualenv (with shell activation) (quiet)" {
+  export PYENV_VIRTUALENV_INIT=1
+  export PYENV_VIRTUAL_ENV="${PYENV_ROOT}/versions/venv"
+  export VIRTUAL_ENV="${PYENV_ROOT}/versions/venv"
+  export PYENV_ACTIVATE_SHELL=1
+
+  PYENV_SHELL="bash" run pyenv-sh-deactivate --quiet
+
+  assert_success
+  assert_output <<EOS
+unset PYENV_VERSION;
+unset PYENV_ACTIVATE_SHELL;
+unset PYENV_VIRTUAL_ENV;
+unset VIRTUAL_ENV;
+if [ -n "\${_OLD_VIRTUAL_PATH:-}" ]; then
+  export PATH="\${_OLD_VIRTUAL_PATH}";
+  unset _OLD_VIRTUAL_PATH;
+fi;
+if [ -n "\${_OLD_VIRTUAL_PYTHONHOME:-}" ]; then
+  export PYTHONHOME="\${_OLD_VIRTUAL_PYTHONHOME}";
+  unset _OLD_VIRTUAL_PYTHONHOME;
+fi;
+if [ -n "\${_OLD_VIRTUAL_PS1:-}" ]; then
+  export PS1="\${_OLD_VIRTUAL_PS1}";
+  unset _OLD_VIRTUAL_PS1;
+fi;
+if declare -f deactivate 1>/dev/null 2>&1; then
+  unset -f deactivate;
+fi;
+EOS
+}
+
+@test "deactivate virtualenv which has been activated manually" {
+  export PYENV_VIRTUALENV_INIT=1
+  export PYENV_VIRTUAL_ENV="${PYENV_ROOT}/versions/venv"
+  export VIRTUAL_ENV="${PYENV_ROOT}/versions/venv"
+  export PYENV_ACTIVATE_SHELL=
+
+  PYENV_SHELL="bash" run pyenv-sh-deactivate
+
+  assert_success
+  assert_output <<EOS
+unset PYENV_VIRTUAL_ENV;
+unset VIRTUAL_ENV;
+if [ -n "\${_OLD_VIRTUAL_PATH:-}" ]; then
+  export PATH="\${_OLD_VIRTUAL_PATH}";
+  unset _OLD_VIRTUAL_PATH;
+fi;
+if [ -n "\${_OLD_VIRTUAL_PYTHONHOME:-}" ]; then
+  export PYTHONHOME="\${_OLD_VIRTUAL_PYTHONHOME}";
+  unset _OLD_VIRTUAL_PYTHONHOME;
+fi;
+if [ -n "\${_OLD_VIRTUAL_PS1:-}" ]; then
+  export PS1="\${_OLD_VIRTUAL_PS1}";
+  unset _OLD_VIRTUAL_PS1;
+fi;
+if declare -f deactivate 1>/dev/null 2>&1; then
+  unset -f deactivate;
+fi;
+EOS
+}
+
+@test "deactivate virtualenv (fish)" {
+  export PYENV_VIRTUALENV_INIT=1
+  export PYENV_VIRTUAL_ENV="${PYENV_ROOT}/versions/venv"
+  export VIRTUAL_ENV="${PYENV_ROOT}/versions/venv"
+  export PYENV_ACTIVATE_SHELL=
+
+  PYENV_SHELL="fish" run pyenv-sh-deactivate
+
+  assert_success
+  assert_output <<EOS
+set -e PYENV_VIRTUAL_ENV;
+set -e VIRTUAL_ENV;
+if [ -n "\$_OLD_VIRTUAL_PATH" ];
+  set -gx PATH "\$_OLD_VIRTUAL_PATH";
+  set -e _OLD_VIRTUAL_PATH;
+end;
+if [ -n "\$_OLD_VIRTUAL_PYTHONHOME" ];
+  set -gx PYTHONHOME "\$_OLD_VIRTUAL_PYTHONHOME";
+  set -e _OLD_VIRTUAL_PYTHONHOME;
+end;
+# check if old prompt function exists
+if functions -q _pyenv_old_prompt
+  # remove old prompt function if exists.
+  functions -e fish_prompt
+  functions -c _pyenv_old_prompt fish_prompt
+  functions -e _pyenv_old_prompt
+end
+if functions -q deactivate;
+  functions -e deactivate;
+end;
+EOS
+}
+
+@test "deactivate virtualenv (fish) (quiet)" {
+  export PYENV_VIRTUALENV_INIT=1
+  export PYENV_VIRTUAL_ENV="${PYENV_ROOT}/versions/venv"
+  export VIRTUAL_ENV="${PYENV_ROOT}/versions/venv"
+  export PYENV_ACTIVATE_SHELL=
+
+  PYENV_SHELL="fish" run pyenv-sh-deactivate --quiet
+
+  assert_success
+  assert_output <<EOS
+set -e PYENV_VIRTUAL_ENV;
+set -e VIRTUAL_ENV;
+if [ -n "\$_OLD_VIRTUAL_PATH" ];
+  set -gx PATH "\$_OLD_VIRTUAL_PATH";
+  set -e _OLD_VIRTUAL_PATH;
+end;
+if [ -n "\$_OLD_VIRTUAL_PYTHONHOME" ];
+  set -gx PYTHONHOME "\$_OLD_VIRTUAL_PYTHONHOME";
+  set -e _OLD_VIRTUAL_PYTHONHOME;
+end;
+# check if old prompt function exists
+if functions -q _pyenv_old_prompt
+  # remove old prompt function if exists.
+  functions -e fish_prompt
+  functions -c _pyenv_old_prompt fish_prompt
+  functions -e _pyenv_old_prompt
+end
+if functions -q deactivate;
+  functions -e deactivate;
+end;
+EOS
+}
+
+@test "deactivate virtualenv (fish) (with shell activation)" {
+  export PYENV_VIRTUALENV_INIT=1
+  export PYENV_VIRTUAL_ENV="${PYENV_ROOT}/versions/venv"
+  export VIRTUAL_ENV="${PYENV_ROOT}/versions/venv"
+  export PYENV_ACTIVATE_SHELL=1
+
+  PYENV_SHELL="fish" run pyenv-sh-deactivate
+
+  assert_success
+  assert_output <<EOS
+set -e PYENV_VERSION;
+set -e PYENV_ACTIVATE_SHELL;
+set -e PYENV_VIRTUAL_ENV;
+set -e VIRTUAL_ENV;
+if [ -n "\$_OLD_VIRTUAL_PATH" ];
+  set -gx PATH "\$_OLD_VIRTUAL_PATH";
+  set -e _OLD_VIRTUAL_PATH;
+end;
+if [ -n "\$_OLD_VIRTUAL_PYTHONHOME" ];
+  set -gx PYTHONHOME "\$_OLD_VIRTUAL_PYTHONHOME";
+  set -e _OLD_VIRTUAL_PYTHONHOME;
+end;
+# check if old prompt function exists
+if functions -q _pyenv_old_prompt
+  # remove old prompt function if exists.
+  functions -e fish_prompt
+  functions -c _pyenv_old_prompt fish_prompt
+  functions -e _pyenv_old_prompt
+end
+if functions -q deactivate;
+  functions -e deactivate;
+end;
+EOS
+}
+
+@test "deactivate virtualenv (fish) (with shell activation) (quiet)" {
+  export PYENV_VIRTUALENV_INIT=1
+  export PYENV_VIRTUAL_ENV="${PYENV_ROOT}/versions/venv"
+  export VIRTUAL_ENV="${PYENV_ROOT}/versions/venv"
+  export PYENV_ACTIVATE_SHELL=1
+
+  PYENV_SHELL="fish" run pyenv-sh-deactivate --quiet
+
+  assert_success
+  assert_output <<EOS
+set -e PYENV_VERSION;
+set -e PYENV_ACTIVATE_SHELL;
+set -e PYENV_VIRTUAL_ENV;
+set -e VIRTUAL_ENV;
+if [ -n "\$_OLD_VIRTUAL_PATH" ];
+  set -gx PATH "\$_OLD_VIRTUAL_PATH";
+  set -e _OLD_VIRTUAL_PATH;
+end;
+if [ -n "\$_OLD_VIRTUAL_PYTHONHOME" ];
+  set -gx PYTHONHOME "\$_OLD_VIRTUAL_PYTHONHOME";
+  set -e _OLD_VIRTUAL_PYTHONHOME;
+end;
+# check if old prompt function exists
+if functions -q _pyenv_old_prompt
+  # remove old prompt function if exists.
+  functions -e fish_prompt
+  functions -c _pyenv_old_prompt fish_prompt
+  functions -e _pyenv_old_prompt
+end
+if functions -q deactivate;
+  functions -e deactivate;
+end;
+EOS
+}
+
+@test "deactivate virtualenv which has been activated manually (fish)" {
+  export PYENV_VIRTUALENV_INIT=1
+  export PYENV_VIRTUAL_ENV="${PYENV_ROOT}/versions/venv"
+  export VIRTUAL_ENV="${PYENV_ROOT}/versions/venv"
+  export PYENV_ACTIVATE_SHELL=
+
+  PYENV_SHELL="fish" run pyenv-sh-deactivate
+
+  assert_success
+  assert_output <<EOS
+set -e PYENV_VIRTUAL_ENV;
+set -e VIRTUAL_ENV;
+if [ -n "\$_OLD_VIRTUAL_PATH" ];
+  set -gx PATH "\$_OLD_VIRTUAL_PATH";
+  set -e _OLD_VIRTUAL_PATH;
+end;
+if [ -n "\$_OLD_VIRTUAL_PYTHONHOME" ];
+  set -gx PYTHONHOME "\$_OLD_VIRTUAL_PYTHONHOME";
+  set -e _OLD_VIRTUAL_PYTHONHOME;
+end;
+# check if old prompt function exists
+if functions -q _pyenv_old_prompt
+  # remove old prompt function if exists.
+  functions -e fish_prompt
+  functions -c _pyenv_old_prompt fish_prompt
+  functions -e _pyenv_old_prompt
+end
+if functions -q deactivate;
+  functions -e deactivate;
+end;
+EOS
+}
+
+@test "should fail if deactivate is invoked as a command" {
+  run pyenv-deactivate
+
+  assert_failure
+}

test/delete.bats

@@ -0,0 +1,88 @@
+#!/usr/bin/env bats
+
+load test_helper
+
+setup() {
+  export PYENV_ROOT="${TMP}/pyenv"
+}
+
+@test "delete virtualenv" {
+  mkdir -p "${PYENV_ROOT}/versions/venv27"
+
+  stub pyenv-virtualenv-prefix "venv27 : true"
+  stub pyenv-rehash "true"
+
+  run pyenv-virtualenv-delete -f "venv27"
+
+  assert_success
+
+  unstub pyenv-virtualenv-prefix
+  unstub pyenv-rehash
+
+  [ ! -d "${PYENV_ROOT}/versions/venv27" ]
+}
+
+@test "delete virtualenv by symlink" {
+  mkdir -p "${PYENV_ROOT}/versions/2.7.11/envs/venv27"
+  ln -fs "${PYENV_ROOT}/versions/2.7.11/envs/venv27" "${PYENV_ROOT}/versions/venv27"
+
+  stub pyenv-rehash "true"
+
+  run pyenv-virtualenv-delete -f "venv27"
+
+  assert_success
+
+  unstub pyenv-rehash
+
+  [ ! -d "${PYENV_ROOT}/versions/2.7.11/envs/venv27" ]
+  [ ! -L "${PYENV_ROOT}/versions/venv27" ]
+}
+
+@test "delete virtualenv with symlink" {
+  mkdir -p "${PYENV_ROOT}/versions/2.7.11/envs/venv27"
+  ln -fs "${PYENV_ROOT}/versions/2.7.11/envs/venv27" "${PYENV_ROOT}/versions/venv27"
+
+  stub pyenv-rehash "true"
+
+  run pyenv-virtualenv-delete -f "2.7.11/envs/venv27"
+
+  assert_success
+
+  unstub pyenv-rehash
+
+  [ ! -d "${PYENV_ROOT}/versions/2.7.11/envs/venv27" ]
+  [ ! -L "${PYENV_ROOT}/versions/venv27" ]
+}
+
+@test "not delete virtualenv with different symlink" {
+  mkdir -p "${PYENV_ROOT}/versions/2.7.8/envs/venv27"
+  mkdir -p "${PYENV_ROOT}/versions/2.7.11/envs/venv27"
+  ln -fs "${PYENV_ROOT}/versions/2.7.8/envs/venv27" "${PYENV_ROOT}/versions/venv27"
+
+  stub pyenv-rehash "true"
+
+  run pyenv-virtualenv-delete -f "2.7.11/envs/venv27"
+
+  assert_success
+
+  unstub pyenv-rehash
+
+  [ ! -d "${PYENV_ROOT}/versions/2.7.11/envs/venv27" ]
+  [ -L "${PYENV_ROOT}/versions/venv27" ]
+}
+
+@test "not delete virtualenv with same name" {
+  mkdir -p "${PYENV_ROOT}/versions/2.7.11/envs/venv27"
+  mkdir -p "${PYENV_ROOT}/versions/venv27"
+
+  stub pyenv-rehash "true"
+
+  run pyenv-virtualenv-delete -f "2.7.11/envs/venv27"
+
+  assert_success
+
+  unstub pyenv-rehash
+
+  [ ! -d "${PYENV_ROOT}/versions/2.7.11/envs/venv27" ]
+  [ -d "${PYENV_ROOT}/versions/venv27" ]
+}

test/envs.bats

@@ -0,0 +1,47 @@
+#!/usr/bin/env bats
+
+load test_helper
+
+setup() {
+  export PYENV_ROOT="${TMP}/envs/pyenv"
+}
+
+stub_pyenv() {
+  stub pyenv-prefix " : echo '${PYENV_ROOT}/versions/${PYENV_VERSION}'"
+  stub pyenv-hooks "virtualenv : echo"
+  stub pyenv-rehash " : echo rehashed"
+}
+
+unstub_pyenv() {
+  unstub pyenv-prefix
+  unstub pyenv-hooks
+  unstub pyenv-rehash
+}
+
+@test "path should be handled properly even if there is 'envs' in PYENV_ROOT" {
+  export PYENV_VERSION="3.5.1"
+  setup_m_venv "3.5.1"
+  stub_pyenv "${PYENV_VERSION}"
+  stub pyenv-version-name "echo '${PYENV_VERSION}'"
+  stub pyenv-prefix " : echo '${PYENV_ROOT}/versions/${PYENV_VERSION}'"
+  stub pyenv-virtualenv-prefix " : false"
+  stub pyenv-exec "python -m venv --help : true"
+  stub pyenv-exec "python -m venv * : echo PYENV_VERSION=\${PYENV_VERSION} \"\$@\";mkdir -p \${PYENV_ROOT}/versions/3.5.1/envs/venv/bin"
+  stub pyenv-exec "python -s -m ensurepip : echo PYENV_VERSION=\${PYENV_VERSION} \"\$@\";touch \${PYENV_ROOT}/versions/3.5.1/envs/venv/bin/pip"
+
+  run pyenv-virtualenv venv
+
+  assert_success
+  assert_output <<OUT
+PYENV_VERSION=3.5.1 python -m venv ${PYENV_ROOT}/versions/3.5.1/envs/venv
+PYENV_VERSION=3.5.1/envs/venv python -s -m ensurepip
+rehashed
+OUT
+  assert [ -e "${PYENV_ROOT}/versions/3.5.1/envs/venv/bin/pip" ]
+
+  unstub_pyenv
+  unstub pyenv-version-name
+  unstub pyenv-virtualenv-prefix
+  unstub pyenv-exec
+  teardown_m_venv "3.5.1"
+}

test/hooks.bats

@@ -0,0 +1,114 @@
+#!/usr/bin/env bats
+
+load test_helper
+
+setup() {
+  export PYENV_ROOT="${TMP}/pyenv"
+  export HOOK_PATH="${TMP}/i has hooks"
+  mkdir -p "$HOOK_PATH"
+  unset PYENV_VIRTUALENV_PROMPT
+}
+
+@test "pyenv-virtualenv hooks" {
+  cat > "${HOOK_PATH}/virtualenv.bash" <<OUT
+before_virtualenv 'echo before: \$VIRTUALENV_PATH'
+after_virtualenv 'echo after: \$STATUS'
+OUT
+  setup_version "3.5.1"
+  create_executable "3.5.1" "virtualenv"
+  stub pyenv-prefix "echo '${PYENV_ROOT}/versions/3.5.1'"
+  stub pyenv-prefix "echo '${PYENV_ROOT}/versions/3.5.1'"
+  stub pyenv-exec "python -m venv --help : true"
+  stub pyenv-hooks "virtualenv : echo '$HOOK_PATH'/virtualenv.bash"
+  stub pyenv-exec "echo PYENV_VERSION=3.5.1 \"\$@\""
+  stub pyenv-exec "echo PYENV_VERSION=3.5.1 \"\$@\""
+  stub pyenv-rehash "echo rehashed"
+
+  run pyenv-virtualenv "3.5.1" venv
+
+  assert_success
+  assert_output <<-OUT
+before: ${PYENV_ROOT}/versions/3.5.1/envs/venv
+PYENV_VERSION=3.5.1 virtualenv ${PYENV_ROOT}/versions/3.5.1/envs/venv
+PYENV_VERSION=3.5.1 python -s -m ensurepip
+after: 0
+rehashed
+OUT
+
+  unstub pyenv-prefix
+  unstub pyenv-hooks
+  unstub pyenv-exec
+  unstub pyenv-rehash
+  teardown_version "3.5.1"
+}
+
+@test "pyenv-sh-activate hooks" {
+  cat > "${HOOK_PATH}/activate.bash" <<OUT
+before_activate 'echo "before"'
+after_activate 'echo "after"'
+OUT
+  export PYENV_VIRTUALENV_INIT=1
+
+  stub pyenv-version-name "echo venv"
+  stub pyenv-virtualenv-prefix ""
+  stub pyenv-prefix "venv : echo \"${PYENV_ROOT}/versions/venv\""
+  stub pyenv-hooks "activate : echo '$HOOK_PATH'/activate.bash"
+  stub pyenv-sh-deactivate ""
+
+  PYENV_SHELL="bash" PYENV_VERSION="venv" run pyenv-sh-activate
+
+  assert_success
+  assert_output <<EOS
+before
+export PYENV_VIRTUAL_ENV="${PYENV_ROOT}/versions/venv";
+export VIRTUAL_ENV="${PYENV_ROOT}/versions/venv";
+export _OLD_VIRTUAL_PS1="\${PS1:-}";
+export PS1="(venv) \${PS1:-}";
+after
+EOS
+
+  unstub pyenv-version-name
+  unstub pyenv-virtualenv-prefix
+  unstub pyenv-prefix
+  unstub pyenv-hooks
+  unstub pyenv-sh-deactivate
+}
+
+@test "deactivate virtualenv" {
+  cat > "${HOOK_PATH}/deactivate.bash" <<OUT
+before_deactivate 'echo "before"'
+after_deactivate 'echo "after"'
+OUT
+  export PYENV_VIRTUALENV_INIT=1
+  export PYENV_VIRTUAL_ENV="${PYENV_ROOT}/versions/venv"
+  export VIRTUAL_ENV="${PYENV_ROOT}/versions/venv"
+  export PYENV_ACTIVATE_SHELL=
+  stub pyenv-hooks "deactivate : echo '$HOOK_PATH'/deactivate.bash"
+
+  PYENV_SHELL="bash" run pyenv-sh-deactivate
+
+  assert_success
+  assert_output <<EOS
+before
+unset PYENV_VIRTUAL_ENV;
+unset VIRTUAL_ENV;
+if [ -n "\${_OLD_VIRTUAL_PATH:-}" ]; then
+  export PATH="\${_OLD_VIRTUAL_PATH}";
+  unset _OLD_VIRTUAL_PATH;
+fi;
+if [ -n "\${_OLD_VIRTUAL_PYTHONHOME:-}" ]; then
+  export PYTHONHOME="\${_OLD_VIRTUAL_PYTHONHOME}";
+  unset _OLD_VIRTUAL_PYTHONHOME;
+fi;
+if [ -n "\${_OLD_VIRTUAL_PS1:-}" ]; then
+  export PS1="\${_OLD_VIRTUAL_PS1}";
+  unset _OLD_VIRTUAL_PS1;
+fi;
+if declare -f deactivate 1>/dev/null 2>&1; then
+  unset -f deactivate;
+fi;
+after
+EOS
+
+  unstub pyenv-hooks
+}

test/init.bats

@@ -0,0 +1,218 @@
+#!/usr/bin/env bats
+
+load test_helper
+
+@test "detect parent shell" {
+  unset PYENV_SHELL
+  SHELL=/bin/false run pyenv-virtualenv-init -
+  assert_success
+  assert_output_contains '  PROMPT_COMMAND="_pyenv_virtualenv_hook;${PROMPT_COMMAND-}"'
+}
+
+@test "detect parent shell from script (sh)" {
+  unset PYENV_SHELL
+  printf '#!/bin/sh\necho "$(pyenv-virtualenv-init -)"' > "${TMP}/script.sh"
+  chmod +x ${TMP}/script.sh
+  run ${TMP}/script.sh
+  assert_success
+  assert_output_contains_not '  PROMPT_COMMAND="_pyenv_virtualenv_hook;${PROMPT_COMMAND-}"'
+  rm -f "${TMP}/script.sh"
+}
+
+@test "detect parent shell from script (bash)" {
+  unset PYENV_SHELL
+  printf '#!/bin/bash\necho "$(pyenv-virtualenv-init -)"' > "${TMP}/script.sh"
+  chmod +x ${TMP}/script.sh
+  run ${TMP}/script.sh
+  assert_success
+  assert_output_contains '  PROMPT_COMMAND="_pyenv_virtualenv_hook;${PROMPT_COMMAND-}"'
+  rm -f "${TMP}/script.sh"
+}
+
+@test "fish instructions" {
+  run pyenv-virtualenv-init fish
+  assert [ "$status" -eq 1 ]
+  assert_output_contains 'status --is-interactive; and source (pyenv virtualenv-init -|psub)'
+}
+
+@test "other shells instructions" {
+    run pyenv-virtualenv-init some_other_sh
+    assert [ "$status" -eq 1 ]
+    assert_output_contains 'eval "$(pyenv virtualenv-init -)"'
+}
+
+@test "outputs bash-specific syntax" {
+  export PYENV_VIRTUALENV_ROOT="${TMP}/pyenv/plugins/pyenv-virtualenv"
+  run pyenv-virtualenv-init - bash
+  assert_success
+  assert_output <<EOS
+export PATH="${TMP}/pyenv/plugins/pyenv-virtualenv/shims:\${PATH}";
+export PYENV_VIRTUALENV_INIT=1;
+_pyenv_virtualenv_hook() {
+  local ret=\$?
+  if [ "\${PYENV_VERSION-}" = "\${_PYENV_VH_VERSION-}" ] \\
+    && [ "\${VIRTUAL_ENV-}" = "\${_PYENV_VH_VENV-}" ]; then
+    if [ -n "\${PYENV_VERSION-}" ]; then
+      return \$ret
+    fi
+    if [ "\${PWD}" = "\${_PYENV_VH_PWD-}" ] \\
+      && [ "\$(stat ${_stat_fmt} "\${_PYENV_VH_PATHS[@]}" 2>/dev/null)" = "\${_PYENV_VH_MTIMES-}" ]; then
+      return \$ret
+    fi
+  fi
+  if [ -n "\${VIRTUAL_ENV-}" ]; then
+    eval "\$(pyenv sh-activate --quiet || pyenv sh-deactivate --quiet || true)" || true
+  else
+    eval "\$(pyenv sh-activate --quiet || true)" || true
+  fi
+  _PYENV_VH_PWD="\${PWD}"
+  _PYENV_VH_VERSION="\${PYENV_VERSION-}"
+  _PYENV_VH_VENV="\${VIRTUAL_ENV-}"
+  local _pvh_d="\${PWD}" _pvh_found_local=0
+  _PYENV_VH_PATHS=()
+  while :; do
+    if [ -f "\${_pvh_d}/.python-version" ] || [ -L "\${_pvh_d}/.python-version" ]; then
+      _PYENV_VH_PATHS+=("\${_pvh_d}/.python-version")
+      if [ -f "\${_pvh_d}/.python-version" ]; then 
+        _pvh_found_local=1
+        break
+      fi
+    else
+      _PYENV_VH_PATHS+=("\${_pvh_d}")
+    fi
+    [ "\${_pvh_d}" = "/" ] && break
+    _pvh_d="\${_pvh_d%/*}"
+    [ -z "\${_pvh_d}" ] && _pvh_d="/"
+  done
+  if [ "\${_pvh_found_local}" = "0" ]; then
+    _PYENV_VH_PATHS+=("\${PYENV_ROOT}/version")
+  fi
+  _PYENV_VH_MTIMES="\$(stat ${_stat_fmt} "\${_PYENV_VH_PATHS[@]}" 2>/dev/null)"
+  return \$ret
+};
+if ! [[ "\${PROMPT_COMMAND-}" =~ _pyenv_virtualenv_hook ]]; then
+  PROMPT_COMMAND="_pyenv_virtualenv_hook;\${PROMPT_COMMAND-}"
+fi
+EOS
+}
+
+@test "outputs fish-specific syntax" {
+  export PYENV_VIRTUALENV_ROOT="${TMP}/pyenv/plugins/pyenv-virtualenv"
+  run pyenv-virtualenv-init - fish
+  assert_success
+  assert_output <<EOS
+while set index (contains -i -- "${TMP}/pyenv/plugins/pyenv-virtualenv/shims" \$PATH)
+set -eg PATH[\$index]; end; set -e index
+set -gx PATH '${TMP}/pyenv/plugins/pyenv-virtualenv/shims' \$PATH;
+set -gx PYENV_VIRTUALENV_INIT 1;
+function _pyenv_virtualenv_hook --on-event fish_prompt;
+  set -l ret \$status
+  if test "\$PYENV_VERSION" = "\$_PYENV_VH_VERSION" \\
+    -a "\$VIRTUAL_ENV" = "\$_PYENV_VH_VENV"
+    if test -n "\$PYENV_VERSION"
+      return \$ret
+    end
+    if test "\$PWD" = "\$_PYENV_VH_PWD" \\
+      -a "(stat ${_stat_fmt} \$_PYENV_VH_PATHS 2>/dev/null)" = "\$_PYENV_VH_MTIMES"
+      return \$ret
+    end
+  end
+  if [ -n "\$VIRTUAL_ENV" ]
+    pyenv activate --quiet; or pyenv deactivate --quiet; or true
+  else
+    pyenv activate --quiet; or true
+  end
+  set -g _PYENV_VH_PWD "\$PWD"
+  set -g _PYENV_VH_VERSION "\$PYENV_VERSION"
+  set -g _PYENV_VH_VENV "\$VIRTUAL_ENV"
+  set -l d "\$PWD"
+  set -l _pvh_found_local 0
+  set -g _PYENV_VH_PATHS
+  while true
+    if test -f "\$d/.python-version"; or test -L "\$d/.python-version"
+      set -g _PYENV_VH_PATHS \$_PYENV_VH_PATHS "\$d/.python-version"
+      if test -f "\$d/.python-version" 
+        set _pvh_found_local 1
+        break
+      end
+    else
+      set -g _PYENV_VH_PATHS \$_PYENV_VH_PATHS "\$d"
+    end
+    test "\$d" = "/"; and break
+    set d (string replace -r '/[^/]*\$' '' -- "\$d")
+    test -z "\$d"; and set d "/"
+  end
+  if test "\$_pvh_found_local" = "0"
+    set -g _PYENV_VH_PATHS \$_PYENV_VH_PATHS "\$PYENV_ROOT/version"
+  end
+  set -g _PYENV_VH_MTIMES (stat ${_stat_fmt} \$_PYENV_VH_PATHS 2>/dev/null)
+  return \$ret
+end
+EOS
+}
+
+@test "outputs zsh-specific syntax" {
+  export PYENV_VIRTUALENV_ROOT="${TMP}/pyenv/plugins/pyenv-virtualenv"
+  run pyenv-virtualenv-init - zsh
+  assert_success
+  assert_output <<EOS
+export PATH="${TMP}/pyenv/plugins/pyenv-virtualenv/shims:\${PATH}";
+export PYENV_VIRTUALENV_INIT=1;
+_pyenv_virtualenv_hook() {
+  local ret=\$?
+  if [ "\${PYENV_VERSION-}" = "\${_PYENV_VH_VERSION-}" ] \\
+    && [ "\${VIRTUAL_ENV-}" = "\${_PYENV_VH_VENV-}" ]; then
+    if [ -n "\${PYENV_VERSION-}" ]; then
+      return \$ret
+    fi
+    if [ "\${PWD}" = "\${_PYENV_VH_PWD-}" ] \\
+      && [ "\$(stat ${_stat_fmt} "\${_PYENV_VH_PATHS[@]}" 2>/dev/null)" = "\${_PYENV_VH_MTIMES-}" ]; then
+      return \$ret
+    fi
+  fi
+  if [ -n "\${VIRTUAL_ENV-}" ]; then
+    eval "\$(pyenv sh-activate --quiet || pyenv sh-deactivate --quiet || true)" || true
+  else
+    eval "\$(pyenv sh-activate --quiet || true)" || true
+  fi
+  _PYENV_VH_PWD="\${PWD}"
+  _PYENV_VH_VERSION="\${PYENV_VERSION-}"
+  _PYENV_VH_VENV="\${VIRTUAL_ENV-}"
+  local _pvh_d="\${PWD}" _pvh_found_local=0
+  _PYENV_VH_PATHS=()
+  while :; do
+    if [ -f "\${_pvh_d}/.python-version" ] || [ -L "\${_pvh_d}/.python-version" ]; then
+      _PYENV_VH_PATHS+=("\${_pvh_d}/.python-version")
+      if [ -f "\${_pvh_d}/.python-version" ]; then 
+        _pvh_found_local=1
+        break
+      fi
+    else
+      _PYENV_VH_PATHS+=("\${_pvh_d}")
+    fi
+    [ "\${_pvh_d}" = "/" ] && break
+    _pvh_d="\${_pvh_d%/*}"
+    [ -z "\${_pvh_d}" ] && _pvh_d="/"
+  done
+  if [ "\${_pvh_found_local}" = "0" ]; then
+    _PYENV_VH_PATHS+=("\${PYENV_ROOT}/version")
+  fi
+  _PYENV_VH_MTIMES="\$(stat ${_stat_fmt} "\${_PYENV_VH_PATHS[@]}" 2>/dev/null)"
+  return \$ret
+};
+typeset -g -a precmd_functions
+if [[ -z \$precmd_functions[(r)_pyenv_virtualenv_hook] ]]; then
+  precmd_functions=(_pyenv_virtualenv_hook \$precmd_functions);
+fi
+EOS
+}
+
+@test "outputs other shells syntax" {
+  export PYENV_VIRTUALENV_ROOT="${TMP}/pyenv/plugins/pyenv-virtualenv"
+  run pyenv-virtualenv-init - some_other_sh
+  assert_success
+  assert_output <<EOS
+export PATH="${TMP}/pyenv/plugins/pyenv-virtualenv/shims:\${PATH}";
+export PYENV_VIRTUALENV_INIT=1;
+EOS
+}

test/installer.bats

@@ -0,0 +1,48 @@
+#!/usr/bin/env bats
+
+load test_helper
+
+@test "installs pyenv-virtualenv into PREFIX" {
+  cd "$TMP"
+  PREFIX="${PWD}/usr" run "${BATS_TEST_DIRNAME}/../install.sh"
+  assert_success ""
+
+  cd usr
+
+  assert [ -x bin/pyenv-activate ]
+  assert [ -x bin/pyenv-deactivate ]
+  assert [ -x bin/pyenv-sh-activate ]
+  assert [ -x bin/pyenv-sh-deactivate ]
+  assert [ -x bin/pyenv-virtualenv ]
+  assert [ -x bin/pyenv-virtualenv-init ]
+  assert [ -x bin/pyenv-virtualenv-prefix ]
+  assert [ -x bin/pyenv-virtualenvs ]
+}
+
+@test "overwrites old installation" {
+  cd "$TMP"
+  mkdir -p bin
+  touch bin/pyenv-virtualenv
+
+  PREFIX="$PWD" run "${BATS_TEST_DIRNAME}/../install.sh"
+  assert_success ""
+
+  assert [ -x bin/pyenv-virtualenv ]
+  run grep "virtualenv" bin/pyenv-virtualenv
+  assert_success
+}
+
+@test "unrelated files are untouched" {
+  cd "$TMP"
+  mkdir -p bin share/bananas
+  chmod g-w bin
+  touch bin/bananas
+
+  PREFIX="$PWD" run "${BATS_TEST_DIRNAME}/../install.sh"
+  assert_success ""
+
+  assert [ -e bin/bananas ]
+
+  run ls -ld bin
+  assert_equal "r-x" "${output:4:3}"
+}

test/pip.bats

@@ -0,0 +1,77 @@
+#!/usr/bin/env bats
+
+load test_helper
+
+setup() {
+  export PYENV_ROOT="${TMP}/pyenv"
+}
+
+stub_pyenv() {
+  stub pyenv-version-name "echo \${PYENV_VERSION}"
+  stub pyenv-prefix " : echo '${PYENV_ROOT}/versions/${PYENV_VERSION}'"
+  stub pyenv-hooks "virtualenv : echo"
+  stub pyenv-rehash " : echo rehashed"
+}
+
+unstub_pyenv() {
+  unstub pyenv-version-name
+  unstub pyenv-prefix
+  unstub pyenv-hooks
+  unstub pyenv-rehash
+}
+
+@test "install pip with ensurepip" {
+  export PYENV_VERSION="3.5.1"
+  setup_m_venv "3.5.1"
+  stub_pyenv "${PYENV_VERSION}"
+  stub pyenv-prefix " : echo '${PYENV_ROOT}/versions/${PYENV_VERSION}'"
+  stub pyenv-virtualenv-prefix " : false"
+  stub pyenv-exec "python -m venv --help : true"
+  stub pyenv-exec "python -m venv * : echo PYENV_VERSION=\${PYENV_VERSION} \"\$@\";mkdir -p \${PYENV_ROOT}/versions/3.5.1/envs/venv/bin"
+  stub pyenv-exec "python -s -m ensurepip : echo PYENV_VERSION=\${PYENV_VERSION} \"\$@\";touch \${PYENV_ROOT}/versions/3.5.1/envs/venv/bin/pip"
+
+  run pyenv-virtualenv venv
+
+  assert_success
+
+  assert_output <<OUT
+PYENV_VERSION=3.5.1 python -m venv ${TMP}/pyenv/versions/3.5.1/envs/venv
+PYENV_VERSION=3.5.1/envs/venv python -s -m ensurepip
+rehashed
+OUT
+  assert [ -e "${PYENV_ROOT}/versions/3.5.1/envs/venv/bin/pip" ]
+
+  unstub_pyenv
+  unstub pyenv-virtualenv-prefix
+  unstub pyenv-exec
+  teardown_m_venv "3.5.1"
+}
+
+@test "install pip without using ensurepip" {
+  export PYENV_VERSION="3.3.6"
+  setup_m_venv "3.3.6"
+  stub_pyenv "${PYENV_VERSION}"
+  stub pyenv-prefix " : echo '${PYENV_ROOT}/versions/${PYENV_VERSION}'"
+  stub pyenv-virtualenv-prefix " : false"
+  stub pyenv-exec "python -m venv --help : true"
+  stub pyenv-exec "python -m venv * : echo PYENV_VERSION=\${PYENV_VERSION} \"\$@\";mkdir -p \${PYENV_ROOT}/versions/3.3.6/envs/venv/bin"
+  stub pyenv-exec "python -s -m ensurepip : false"
+  stub pyenv-exec "python -s */get-pip.py : echo PYENV_VERSION=\${PYENV_VERSION} \"\$@\";touch \${PYENV_ROOT}/versions/3.3.6/envs/venv/bin/pip"
+  stub curl true
+
+  run pyenv-virtualenv venv
+
+  assert_success
+  assert_output <<OUT
+PYENV_VERSION=3.3.6 python -m venv ${PYENV_ROOT}/versions/3.3.6/envs/venv
+Installing pip from https://bootstrap.pypa.io/pip/3.3/get-pip.py...
+PYENV_VERSION=3.3.6/envs/venv python -s ${TMP}/pyenv/cache/get-pip.py
+rehashed
+OUT
+  assert [ -e "${PYENV_ROOT}/versions/3.3.6/envs/venv/bin/pip" ]
+
+  unstub_pyenv
+  unstub pyenv-virtualenv-prefix
+  unstub pyenv-exec
+  teardown_m_venv "3.3.6"
+}

test/prefix.bats

@@ -0,0 +1,214 @@
+#!/usr/bin/env bats
+
+load test_helper
+
+setup() {
+  export PYENV_ROOT="${TMP}/pyenv"
+}
+
+create_version() {
+  mkdir -p "${PYENV_ROOT}/versions/$1/bin"
+  touch "${PYENV_ROOT}/versions/$1/bin/python"
+  chmod +x "${PYENV_ROOT}/versions/$1/bin/python"
+}
+
+create_virtualenv() {
+  create_version "$1"
+  create_version "${2:-$1}"
+  mkdir -p "${PYENV_ROOT}/versions/$1/lib/python${2:-$1}"
+  echo "${PYENV_ROOT}/versions/${2:-$1}" > "${PYENV_ROOT}/versions/$1/lib/python${2:-$1}/orig-prefix.txt"
+  touch "${PYENV_ROOT}/versions/$1/bin/activate"
+}
+
+create_virtualenv_jython() {
+  create_version "$1"
+  create_version "${2:-$1}"
+  mkdir -p "${PYENV_ROOT}/versions/$1/Lib/"
+  echo "${PYENV_ROOT}/versions/${2:-$1}" > "${PYENV_ROOT}/versions/$1/Lib/orig-prefix.txt"
+  touch "${PYENV_ROOT}/versions/$1/bin/activate"
+}
+
+create_virtualenv_pypy() {
+  create_version "$1"
+  create_version "${2:-$1}"
+  mkdir -p "${PYENV_ROOT}/versions/$1/lib-python/${2:-$1}"
+  echo "${PYENV_ROOT}/versions/${2:-$1}" > "${PYENV_ROOT}/versions/$1/lib-python/${2:-$1}/orig-prefix.txt"
+  touch "${PYENV_ROOT}/versions/$1/bin/activate"
+}
+
+create_m_venv() {
+  create_version "$1"
+  create_version "${2:-$1}"
+  echo "home = ${PYENV_ROOT}/versions/${2:-$1}/bin" > "${PYENV_ROOT}/versions/$1/pyvenv.cfg"
+  touch "${PYENV_ROOT}/versions/$1/bin/activate"
+}
+
+create_conda() {
+  create_version "$1"
+  create_version "${2:-$1}"
+  touch "${PYENV_ROOT}/versions/$1/bin/conda"
+  touch "${PYENV_ROOT}/versions/$1/bin/activate"
+  mkdir -p "${PYENV_ROOT}/versions/${2:-$1}/bin"
+  touch "${PYENV_ROOT}/versions/${2:-$1}/bin/conda"
+  touch "${PYENV_ROOT}/versions/${2:-$1}/bin/activate"
+}
+
+@test "display prefix of virtualenv created by virtualenv" {
+  stub pyenv-version-name "echo foo"
+  create_virtualenv "foo" "2.7.11"
+
+  PYENV_VERSION="foo" run pyenv-virtualenv-prefix
+
+  assert_success
+  assert_output <<OUT
+${PYENV_ROOT}/versions/2.7.11
+OUT
+
+  unstub pyenv-version-name
+}
+
+@test "display prefix of virtualenv created by virtualenv (pypy)" {
+  stub pyenv-version-name "echo foo"
+  create_virtualenv_pypy "foo" "pypy-4.0.1"
+
+  PYENV_VERSION="foo" run pyenv-virtualenv-prefix
+
+  assert_success
+  assert_output <<OUT
+${PYENV_ROOT}/versions/pypy-4.0.1
+OUT
+
+  unstub pyenv-version-name
+}
+
+@test "display prefix of virtualenv created by virtualenv (jython)" {
+  stub pyenv-version-name "echo foo"
+  create_virtualenv_jython "foo" "jython-2.7.0"
+
+  PYENV_VERSION="foo" run pyenv-virtualenv-prefix
+
+  assert_success
+  assert_output <<OUT
+${PYENV_ROOT}/versions/jython-2.7.0
+OUT
+
+  unstub pyenv-version-name
+}
+
+@test "display prefixes of virtualenv created by virtualenv" {
+  stub pyenv-version-name "echo foo:bar"
+  create_virtualenv "foo" "2.7.11"
+  create_virtualenv "bar" "3.5.1"
+
+  PYENV_VERSION="foo:bar" run pyenv-virtualenv-prefix
+
+  assert_success
+  assert_output <<OUT
+${PYENV_ROOT}/versions/2.7.11:${PYENV_ROOT}/versions/3.5.1
+OUT
+
+  unstub pyenv-version-name
+}
+
+@test "display prefix of virtualenv created by venv" {
+  stub pyenv-version-name "echo foo"
+  create_m_venv "foo" "3.3.6"
+
+  PYENV_VERSION="foo" run pyenv-virtualenv-prefix
+
+  assert_success
+  assert_output <<OUT
+${PYENV_ROOT}/versions/3.3.6
+OUT
+
+  unstub pyenv-version-name
+}
+
+@test "display prefixes of virtualenv created by venv" {
+  stub pyenv-version-name "echo foo:bar"
+  create_m_venv "foo" "3.3.6"
+  create_m_venv "bar" "3.4.4"
+
+  PYENV_VERSION="foo:bar" run pyenv-virtualenv-prefix
+
+  assert_success
+  assert_output <<OUT
+${PYENV_ROOT}/versions/3.3.6:${PYENV_ROOT}/versions/3.4.4
+OUT
+
+  unstub pyenv-version-name
+}
+
+@test "display prefix of virtualenv created by conda" {
+  stub pyenv-version-name "echo miniconda3-3.16.0/envs/foo"
+  create_conda "miniconda3-3.16.0/envs/foo" "miniconda3-3.16.0"
+
+  PYENV_VERSION="miniconda3-3.16.0/envs/foo" run pyenv-virtualenv-prefix
+
+  assert_success
+  assert_output <<OUT
+${PYENV_ROOT}/versions/miniconda3-3.16.0/envs/foo
+OUT
+
+  unstub pyenv-version-name
+}
+
+@test "should fail if the version is the system" {
+  stub pyenv-version-name "echo system"
+
+  PYENV_VERSION="system" run pyenv-virtualenv-prefix
+
+  assert_failure
+  assert_output <<OUT
+pyenv-virtualenv: version \`system' is not a virtualenv
+OUT
+
+  unstub pyenv-version-name
+}
+
+@test "should fail if the version is not a virtualenv" {
+  stub pyenv-version-name "echo 3.4.4"
+  create_version "3.4.4"
+
+  PYENV_VERSION="3.4.4" run pyenv-virtualenv-prefix
+
+  assert_failure
+  assert_output <<OUT
+pyenv-virtualenv: version \`3.4.4' is not a virtualenv
+OUT
+
+  unstub pyenv-version-name
+}
+
+@test "should fail if one of the versions is not a virtualenv" {
+  stub pyenv-version-name "echo venv33:3.4.4"
+  create_virtualenv "venv33" "3.3.6"
+  create_version "3.4.4"
+
+  PYENV_VERSION="venv33:3.4.4" run pyenv-virtualenv-prefix
+
+  assert_failure
+  assert_output <<OUT
+pyenv-virtualenv: version \`3.4.4' is not a virtualenv
+OUT
+
+  unstub pyenv-version-name
+}
+
+@test "resolves a version that is not an exact match" {
+  stub pyenv-version-name "echo 3"
+  create_version "3.4.4"
+  
+  stub pyenv-prefix "3 : echo \"$PYENV_ROOT/versions/3.4.4\""
+
+  run pyenv-virtualenv-prefix
+
+  assert_failure
+  assert_output <<OUT
+pyenv-virtualenv: version \`3' is not a virtualenv
+OUT
+
+  unstub pyenv-version-name
+  unstub pyenv-prefix
+}
+

test/python.bats

@@ -0,0 +1,117 @@
+#!/usr/bin/env bats
+
+load test_helper
+
+setup() {
+  export PYENV_ROOT="${TMP}/pyenv"
+  export PYENV_VERSION="2.7.8"
+  setup_version "2.7.8"
+  create_executable "2.7.8" "virtualenv"
+  stub pyenv-prefix "echo '${PYENV_ROOT}/versions/${PYENV_VERSION}'"
+  stub pyenv-prefix "echo '${PYENV_ROOT}/versions/${PYENV_VERSION}'"
+  stub pyenv-prefix "echo '${PYENV_ROOT}/versions/${PYENV_VERSION}'"
+  stub pyenv-hooks "virtualenv : echo"
+  stub pyenv-rehash " : true"
+  stub pyenv-version-name "echo \${PYENV_VERSION}"
+  stub curl true
+  stub python-build "echo python2.7"
+}
+
+teardown() {
+  unstub curl
+  unstub pyenv-version-name
+  unstub pyenv-prefix
+  unstub pyenv-hooks
+  unstub pyenv-rehash
+  unstub python-build
+  teardown_version "2.7.8"
+  rm -fr "$TMP"/*
+}
+
+@test "resolve python executable from enabled version" {
+  remove_executable "2.7.7" "python2.7"
+  create_executable "2.7.8" "python2.7"
+  remove_executable "2.7.9" "python2.7"
+
+  stub pyenv-exec "python -m venv --help : false"
+  stub pyenv-exec "virtualenv --verbose * : echo PYENV_VERSION=\${PYENV_VERSION} \"\$@\""
+  stub pyenv-exec "python -s -m ensurepip : true"
+  stub pyenv-which "python2.7 : echo ${PYENV_ROOT}/versions/2.7.8/bin/python2.7"
+
+  run pyenv-virtualenv --verbose --python=python2.7 venv
+
+  unstub pyenv-exec
+  assert_output <<OUT
+PYENV_VERSION=2.7.8 virtualenv --verbose --python=${PYENV_ROOT}/versions/2.7.8/bin/python2.7 ${PYENV_ROOT}/versions/2.7.8/envs/venv
+OUT
+  assert_success
+
+  unstub pyenv-which
+
+  remove_executable "2.7.7" "python2.7"
+  remove_executable "2.7.8" "python2.7"
+  remove_executable "2.7.9" "python2.7"
+}
+
+@test "resolve python executable from other versions" {
+  remove_executable "2.7.7" "python2.7"
+  remove_executable "2.7.8" "python2.7"
+  create_executable "2.7.9" "python2.7"
+
+  stub pyenv-exec "python -m venv --help : false"
+  stub pyenv-exec "virtualenv --verbose * : echo PYENV_VERSION=\${PYENV_VERSION} \"\$@\""
+  stub pyenv-exec "python -s -m ensurepip : true"
+  stub pyenv-which "python2.7 : false"
+  stub pyenv-whence "python2.7 : echo 2.7.7; echo 2.7.8; echo 2.7.9"
+  stub pyenv-which "python2.7 : echo ${PYENV_ROOT}/versions/2.7.9/bin/python2.7"
+
+  run pyenv-virtualenv --verbose --python=python2.7 venv
+
+  assert_output <<OUT
+PYENV_VERSION=2.7.8 virtualenv --verbose --python=${PYENV_ROOT}/versions/2.7.9/bin/python2.7 ${PYENV_ROOT}/versions/2.7.8/envs/venv
+OUT
+  assert_success
+
+  unstub pyenv-which
+  unstub pyenv-whence
+  unstub pyenv-exec
+
+  remove_executable "2.7.7" "python2.7"
+  remove_executable "2.7.8" "python2.7"
+  remove_executable "2.7.9" "python2.7"
+}
+
+@test "cannot resolve python executable" {
+  remove_executable "2.7.7" "python2.7"
+  remove_executable "2.7.8" "python2.7"
+  remove_executable "2.7.9" "python2.7"
+
+  stub pyenv-which "python2.7 : false"
+  stub pyenv-whence "python2.7 : false"
+  stub pyenv-which "python2.7 : false"
+
+  run pyenv-virtualenv --verbose --python=python2.7 venv
+
+  assert_output <<OUT
+pyenv-virtualenv: \`python2.7' is not installed in pyenv.
+Run \`pyenv install python2.7' to install it.
+OUT
+  assert_failure
+
+  unstub pyenv-which
+  unstub pyenv-whence
+
+  remove_executable "2.7.7" "python2.7"
+  remove_executable "2.7.8" "python2.7"
+  remove_executable "2.7.9" "python2.7"
+}
+
+@test "invalid python name" {
+  run pyenv-virtualenv --verbose --python=99.99.99 venv
+
+  assert_output <<OUT
+pyenv-virtualenv: \`99.99.99' is not installed in pyenv.
+It does not look like a valid Python version. See \`pyenv install --list' for available versions.
+OUT
+  assert_failure
+}

test/pyvenv.bats

@@ -0,0 +1,178 @@
+#!/usr/bin/env bats
+
+load test_helper
+
+setup() {
+  export PYENV_ROOT="${TMP}/pyenv"
+}
+
+stub_pyenv() {
+  stub pyenv-version-name "echo \${PYENV_VERSION}"
+  stub pyenv-prefix " : echo '${PYENV_ROOT}/versions/${PYENV_VERSION}'"
+  stub pyenv-hooks "virtualenv : echo"
+  stub pyenv-rehash " : echo rehashed"
+}
+
+unstub_pyenv() {
+  unstub pyenv-version-name
+  unstub pyenv-prefix
+  unstub pyenv-hooks
+  unstub pyenv-rehash
+}
+
+@test "use venv if virtualenv is not available" {
+  export PYENV_VERSION="3.5.1"
+  setup_m_venv "3.5.1"
+  stub_pyenv "${PYENV_VERSION}"
+  stub pyenv-prefix " : echo '${PYENV_ROOT}/versions/${PYENV_VERSION}'"
+  stub pyenv-virtualenv-prefix " : false"
+  stub pyenv-exec "python -m venv --help : true"
+  stub pyenv-exec "python -m venv * : echo PYENV_VERSION=\${PYENV_VERSION} \"\$@\""
+  stub pyenv-exec "python -s -m ensurepip : true"
+
+  run pyenv-virtualenv venv
+
+  assert_output <<OUT
+PYENV_VERSION=3.5.1 python -m venv ${PYENV_ROOT}/versions/3.5.1/envs/venv
+rehashed
+OUT
+  assert [ -x "${PYENV_ROOT}/versions/3.5.1/envs/venv/bin/pydoc" ]
+  assert_success
+
+  unstub_pyenv
+  unstub pyenv-virtualenv-prefix
+  unstub pyenv-exec
+  teardown_m_venv "3.5.1"
+}
+
+@test "not use venv if virtualenv is available" {
+  export PYENV_VERSION="3.5.1"
+  setup_m_venv "3.5.1"
+  create_executable "3.5.1" "virtualenv"
+  stub_pyenv "${PYENV_VERSION}"
+  stub pyenv-prefix " : echo '${PYENV_ROOT}/versions/${PYENV_VERSION}'"
+  stub pyenv-virtualenv-prefix " : false"
+  stub pyenv-exec "python -m venv --help : true"
+  stub pyenv-exec "virtualenv * : echo PYENV_VERSION=\${PYENV_VERSION} \"\$@\""
+  stub pyenv-exec "python -s -m ensurepip : true"
+
+  run pyenv-virtualenv venv
+
+  assert_output <<OUT
+PYENV_VERSION=3.5.1 virtualenv ${PYENV_ROOT}/versions/3.5.1/envs/venv
+rehashed
+OUT
+  assert [ -x "${PYENV_ROOT}/versions/3.5.1/envs/venv/bin/pydoc" ]
+  assert_success
+
+  unstub_pyenv
+  unstub pyenv-virtualenv-prefix
+  unstub pyenv-exec
+  teardown_m_venv "3.5.1"
+}
+
+@test "install virtualenv if venv is not available" {
+  export PYENV_VERSION="3.2.1"
+  setup_version "3.2.1"
+  stub_pyenv "${PYENV_VERSION}"
+  stub pyenv-prefix " : echo '${PYENV_ROOT}/versions/${PYENV_VERSION}'"
+  stub pyenv-virtualenv-prefix " : false"
+  stub pyenv-exec "python -m venv --help : false"
+  stub pyenv-exec "pip install virtualenv* : echo PYENV_VERSION=\${PYENV_VERSION} \"\$@\""
+  stub pyenv-exec "virtualenv * : echo PYENV_VERSION=\${PYENV_VERSION} \"\$@\""
+
+  run pyenv-virtualenv venv
+
+  assert_output <<OUT
+PYENV_VERSION=3.2.1 pip install virtualenv==13.1.2
+PYENV_VERSION=3.2.1 virtualenv ${PYENV_ROOT}/versions/3.2.1/envs/venv
+rehashed
+OUT
+  assert [ -x "${PYENV_ROOT}/versions/3.2.1/envs/venv/bin/pydoc" ]
+  assert_success
+
+  unstub_pyenv
+  unstub pyenv-virtualenv-prefix
+  unstub pyenv-exec
+  teardown_version "3.2.1"
+}
+
+@test "install virtualenv if -p has given" {
+  export PYENV_VERSION="3.5.1"
+  setup_m_venv "3.5.1"
+  stub_pyenv "${PYENV_VERSION}"
+  stub pyenv-prefix " : echo '${PYENV_ROOT}/versions/${PYENV_VERSION}'"
+  stub pyenv-virtualenv-prefix " : false"
+  stub pyenv-exec "python -m venv --help : true"
+  stub pyenv-exec "pip install virtualenv : echo PYENV_VERSION=\${PYENV_VERSION} \"\$@\""
+  stub pyenv-exec "virtualenv * : echo PYENV_VERSION=\${PYENV_VERSION} \"\$@\""
+  stub pyenv-exec "python -s -m ensurepip : true"
+
+  run pyenv-virtualenv -p ${TMP}/python3 venv
+
+  assert_output <<OUT
+PYENV_VERSION=3.5.1 pip install virtualenv
+PYENV_VERSION=3.5.1 virtualenv --python=${TMP}/python3 ${PYENV_ROOT}/versions/3.5.1/envs/venv
+rehashed
+OUT
+  assert [ -x "${PYENV_ROOT}/versions/3.5.1/envs/venv/bin/pydoc" ]
+  assert_success
+
+  unstub_pyenv
+  unstub pyenv-virtualenv-prefix
+  unstub pyenv-exec
+  teardown_m_venv "3.5.1"
+}
+
+@test "install virtualenv if --python has given" {
+  export PYENV_VERSION="3.5.1"
+  setup_m_venv "3.5.1"
+  stub_pyenv "${PYENV_VERSION}"
+  stub pyenv-prefix " : echo '${PYENV_ROOT}/versions/${PYENV_VERSION}'"
+  stub pyenv-virtualenv-prefix " : false"
+  stub pyenv-exec "python -m venv --help : true"
+  stub pyenv-exec "pip install virtualenv : echo PYENV_VERSION=\${PYENV_VERSION} \"\$@\""
+  stub pyenv-exec "virtualenv * : echo PYENV_VERSION=\${PYENV_VERSION} \"\$@\""
+  stub pyenv-exec "python -s -m ensurepip : true"
+
+  run pyenv-virtualenv --python=${TMP}/python3 venv
+
+  assert_output <<OUT
+PYENV_VERSION=3.5.1 pip install virtualenv
+PYENV_VERSION=3.5.1 virtualenv --python=${TMP}/python3 ${PYENV_ROOT}/versions/3.5.1/envs/venv
+rehashed
+OUT
+  assert [ -x "${PYENV_ROOT}/versions/3.5.1/envs/venv/bin/pydoc" ]
+  assert_success
+
+  unstub_pyenv
+  unstub pyenv-virtualenv-prefix
+  unstub pyenv-exec
+  teardown_m_venv "3.5.1"
+}
+
+@test "install virtualenv with unsetting troublesome pip options" {
+  export PYENV_VERSION="3.2.1"
+  setup_version "3.2.1"
+  stub_pyenv "${PYENV_VERSION}"
+  stub pyenv-prefix " : echo '${PYENV_ROOT}/versions/${PYENV_VERSION}'"
+  stub pyenv-virtualenv-prefix " : false"
+  stub pyenv-exec "python -m venv --help : false"
+  stub pyenv-exec "pip install virtualenv* : echo PIP_REQUIRE_VENV=\${PIP_REQUIRE_VENV} PYENV_VERSION=\${PYENV_VERSION} \"\$@\""
+  stub pyenv-exec "virtualenv * : echo PIP_REQUIRE_VENV=\${PIP_REQUIRE_VENV} PYENV_VERSION=\${PYENV_VERSION} \"\$@\""
+
+  PIP_REQUIRE_VENV="true" run pyenv-virtualenv venv
+
+  assert_output <<OUT
+PIP_REQUIRE_VENV= PYENV_VERSION=3.2.1 pip install virtualenv==13.1.2
+PIP_REQUIRE_VENV= PYENV_VERSION=3.2.1 virtualenv ${PYENV_ROOT}/versions/3.2.1/envs/venv
+rehashed
+OUT
+  assert [ -x "${PYENV_ROOT}/versions/3.2.1/envs/venv/bin/pydoc" ]
+  assert_success
+
+  unstub_pyenv
+  unstub pyenv-virtualenv-prefix
+  unstub pyenv-exec
+  teardown_version "3.2.1"
+}

test/stubs/stub

@@ -0,0 +1,282 @@
+#!/usr/bin/env bash
+export PS4='+($$:${BASH_SOURCE}:${LINENO}): ${FUNCNAME[0]:+${FUNCNAME[0]}(): }'
+set -e
+
+status=0
+program="${0##*/}"
+PROGRAM="$(echo "$program" | tr a-z- A-Z_)"
+[ -n "$TMPDIR" ] || TMPDIR="/tmp"
+
+STUB_PLAN="${PROGRAM}_STUB_PLAN"
+STUB_PLAN="${!STUB_PLAN}"
+
+STUB_RUN="${PROGRAM}_STUB_RUN"
+STUB_RUN="${!STUB_RUN:-${TMPDIR}/${program}-stub-run}"
+STUB_INDEX=
+STUB_RESULT=
+
+STUB_END="${PROGRAM}_STUB_END"
+STUB_END="${!STUB_END}"
+
+STUB_LOG="${PROGRAM}_STUB_LOG"
+STUB_LOG="${!STUB_LOG:-${TMPDIR}/${program}-stub-log}"
+
+
+STUB_LOCKFILE="${TMPDIR}/${program}-stub.lock"
+
+release_lock() {
+  rm -f "$STUB_LOCKFILE"
+  trap - EXIT
+}
+
+acquire_lock() {
+  local start=$SECONDS
+  local acquire_timeout=10
+  local acquired=
+  while (( SECONDS <= start + $acquire_timeout )); do
+  
+    ( set -o noclobber; echo -n >"$STUB_LOCKFILE" ) 2>/dev/null && acquired=1
+
+    if [[ -n $acquired ]]; then
+      trap release_lock EXIT
+      break
+    else
+      # POSIX sleep(1) doesn't provide subsecond precision, but many others do
+      sleep 0.1 2>/dev/null || sleep 1
+    fi
+  done
+  if [[ -z $acquired ]]; then
+    echo "$0: error: could not acquire stub lock \`$STUB_LOCKFILE' in ${acquire_timeout} seconds" >&2
+    exit 2
+  fi
+}
+
+acquire_lock
+
+if [[ -z $STUB_END ]]; then echo "$program" "$@" >>"$STUB_LOG"; fi
+
+[[ -e $STUB_PLAN ]] || exit 1
+
+# Initialize or load the stub run information.
+read_runfile() {
+  if [[ -e $STUB_RUN ]]; then source "$STUB_RUN"; fi
+}
+write_runfile() {
+  {
+    local i
+    echo "STUB_INDEX=$STUB_INDEX"
+    echo "STUB_RESULT=$STUB_RESULT"
+    echo "STUB_RUNCOUNTS=()"
+    for i in ${!STUB_RUNCOUNTS[@]}; do
+      echo "STUB_RUNCOUNTS[$i]=${STUB_RUNCOUNTS[$i]}"
+    done
+  } > "$STUB_RUN"
+}
+update_runfile_index() {
+  ( STUB_INDEX=$((STUB_INDEX + 1))
+    write_runfile
+  )
+}
+update_runfile_result() {
+  (
+    # Another stubs may have run while we were running payload
+    # So we need to merge possible state changes
+    local our_result="$STUB_RESULT"
+    local -a our_runcounts
+    array_copy STUB_RUNCOUNTS our_runcounts
+    
+    read_runfile
+    
+    # merge our match_result and their match_result, with failure taking precedence
+    STUB_RESULT=$(( our_result | STUB_RESULT ))
+    
+    # 3-way merge STUB_RUNCOUNTS (their changes),
+    # our_runcounts (our changes) and initial_runcounts (base)
+    local i
+    for i in $(printf '%s\n' ${!STUB_RUNCOUNTS[@]} ${!our_runcounts[@]} | sort -u); do
+      STUB_RUNCOUNTS[$i]=$((STUB_RUNCOUNTS[i] + our_runcounts[i] - initial_runcounts[i]))
+    done
+    
+    write_runfile
+  )
+}
+
+array_copy() {
+  #`declare -p' is supposed to produce "declare -a src=([index]="value" <etc>)"
+  local data="$(declare -p ${1:?})"
+  local dest="${2:?}"
+  # Bash 5 dumps empty arrays as "declare -a arr"
+  if [[ $data != *=* ]]; then
+    data="()";
+  else
+    data="${data#*=}"
+  fi
+  
+  # Bash 3 and MacPorts version of Bash 5 dump arrays in single quotes "declare -a arr='()'"
+  #  but arr='(<value>)' createss "([0]='<value>')" rather than duplicate the array
+  if [[ ${data:0:1} == "'" && ${data:${#data}-1:1} == "'" ]]; then
+    data="${data:1:${#data}-2}"
+  fi
+  eval "$dest=$data"
+}
+
+STUB_INDEX=1
+STUB_RESULT=0
+declare -a STUB_RUNCOUNTS
+read_runfile
+declare -a initial_runcounts
+array_copy STUB_RUNCOUNTS initial_runcounts
+
+# ${PROGRAM}_STUB_END envvar is set externally to trigger verification mode for `unstub'
+# Execution mode
+if [[ -z $STUB_END ]]; then
+  
+  # Loop over each line in the plan.
+  regular_command_index=0
+  no_order_command_index=0
+  match_result=1
+  while IFS= read -r line; do
+    line_flags="${line%% *}"
+    line="${line#${line_flags} }"
+    line_flag_no_order="$(if [[ $line_flags == N ]]; then echo 1; fi)"
+    line_flag_multiple="$(if [[ $line_flags == M ]]; then echo 1; fi)"
+    line_flag_regular="$(if [[ $line_flags == - ]]; then echo 1; fi)"
+    unset line_flags
+    
+    # Go through the plan until a match is found.
+    # For regular commands, only check the next command by index.
+    # Also keep track of no-order commands for the purpose of run count tracking
+    if [[ -n $line_flag_regular ]]; then
+      regular_command_index=$(($regular_command_index + 1))
+      if [[ $regular_command_index -ne $STUB_INDEX ]]; then
+        continue;
+      fi
+    else
+      no_order_command_index=$(($no_order_command_index + 1))
+    fi
+    
+    # Split the line into an array of arguments to
+    # match and a command to run to produce output.
+    command=" $line"
+    if [[ $command == *" : "* ]]; then
+      patterns="${command%% : *}"
+      command="${command#* : }"
+    fi
+
+    # Naively split patterns by whitespace for now.
+    # In the future, use a sed script to split while
+    # respecting quoting.
+    set -f
+    patterns=($patterns)
+    set +f
+    arguments=("$@")
+
+    # Match the expected argument patterns to actual
+    # arguments.
+    match_result=0
+    for (( i=0; i<${#patterns[@]}; i++ )); do
+      pattern="${patterns[$i]}"
+      argument="${arguments[$i]}"
+
+      case "$argument" in
+        $pattern ) ;;
+        * ) match_result=1 ;;
+      esac
+    done
+
+    # If the arguments matched, evaluate the command
+    # in a subshell. Otherwise, log the failure.
+    if [ $match_result -eq 0 ] ; then
+
+      # If this is a regular command, push the regular command index for the next stub invocation
+      if [[ -n $line_flag_regular ]]; then
+        update_runfile_index
+      else
+        STUB_RUNCOUNTS[$no_order_command_index]=$((STUB_RUNCOUNTS[no_order_command_index]+1))
+      fi
+      
+      # Release the lock while running the payload to allow another `stub'
+      # of the same program to run concurrently (e.g. in a pipeline).
+      release_lock
+      
+      ( eval "$command" ) && status="$?" || status="$?"
+
+      break
+    fi
+    
+  done < "$STUB_PLAN"
+
+  #If we never matched anything, we failed.
+  if [[ $match_result -eq 1 ]]; then
+    STUB_RESULT=1
+    
+    #This also means that we never released the lock
+    # before running the payload
+  else 
+    acquire_lock
+  fi
+  # Write out the match_result information.
+  update_runfile_result
+  release_lock
+ 
+  exit "$status"
+
+fi
+
+# Verification mode (`unstub')
+if [[ -n $STUB_END ]]; then
+
+  # `unstub' is supposed to run after any stubs are finished
+  release_lock
+
+  # If the number of regular commands in the plan is larger than
+  # the final regular_command_index, we failed.
+  if [[ $(grep -Ee '^-' "$STUB_PLAN" | wc -l ) -ge $STUB_INDEX ]]; then
+    STUB_RESULT=1
+  fi
+  
+  # If no-order commands weren't executed exactly once
+  # and multiple-times commands at least once, we failed.
+  no_order_command_index=0
+  while IFS= read -r line; do
+    line_flags="${line%% *}"
+    line="${line#${line_flags} }"
+    line_flag_no_order="$(if [[ $line_flags == N ]]; then echo 1; fi)"
+    line_flag_multiple="$(if [[ $line_flags == M ]]; then echo 1; fi)"
+    line_flag_regular="$(if [[ $line_flags == - ]]; then echo 1; fi)"
+    unset line_flags
+
+    if [[ -z $line_flag_regular ]]; then
+      continue
+    fi
+    
+    no_order_command_index=$((no_order_command_index + 1))
+    
+    if [[ ( -n $line_flag_no_order && \
+          (( STUB_RUNCOUNTS[no_order_command_index] != 1 )) ) \
+        || \
+        ( -n $line_flag_multiple && \
+        (( STUB_RUNCOUNTS[no_order_command_index] < 1 )) ) ]]
+    then
+      STUB_RESULT=1
+    fi
+    
+  done < "$STUB_PLAN"
+  
+  if [[ $STUB_RESULT -ne 0 ]]; then
+    {
+      echo "plan:"
+      cat "$STUB_PLAN" || true
+      echo "log:"
+      cat "$STUB_LOG" || true
+    } >&2
+  fi
+
+  # Clean up the run file.
+  rm -f "$STUB_RUN"
+  rm -f "$STUB_LOG"
+
+  # Return the run result.
+  exit "$STUB_RESULT"
+
+fi

test/test_helper.bash

@@ -0,0 +1,232 @@
+export TMP="$BATS_TEST_DIRNAME/tmp"
+
+# Detect stat format for mtime: GNU uses -c %Y, BSD uses -f %m
+# Must match the detection in bin/pyenv-virtualenv-init
+if stat -L -c %Y / >/dev/null 2>&1; then
+  _stat_fmt="-L -c %Y"
+else
+  _stat_fmt="-L -f %m"
+fi
+export PS4='+(${BASH_SOURCE}:${LINENO}): ${FUNCNAME[0]:+${FUNCNAME[0]}(): }'
+
+PATH=/usr/bin:/usr/sbin:/bin:/sbin
+PATH="$BATS_TEST_DIRNAME/../bin:$PATH"
+PATH="$TMP/bin:$PATH"
+export PATH
+
+teardown() {
+  rm -fr "$TMP"/*
+}
+
+stub() {
+  local FLAG_NO_ORDER=
+  local FLAG_MULTIPLE=
+  while (($#)); do
+    case "$1" in
+      -N|--no-order)
+        FLAG_NO_ORDER=1
+        shift
+        ;;
+      -M|--multiple)
+        FLAG_MULTIPLE=1
+        shift
+        ;;
+      -*)
+        echo "stub: unrecognized switch: $arg" >$2
+        return 1
+        ;;
+      *)
+        break
+        ;;
+    esac
+  done
+  
+  local FLAGS=-
+  if [[ -n $FLAG_MULTIPLE ]]; then
+    FLAGS=M
+  elif [[ -n $FLAG_NO_ORDER ]]; then
+    FLAGS=N
+  fi
+  
+  local program="$1"
+  local prefix="$(echo "$program" | tr a-z- A-Z_)"
+  shift
+
+  export "${prefix}_STUB_PLAN"="${TMP}/${program}-stub-plan"
+  export "${prefix}_STUB_RUN"="${TMP}/${program}-stub-run"
+  export "${prefix}_STUB_LOG"="${TMP}/${program}-stub-log"
+  export "${prefix}_STUB_END"=
+
+  mkdir -p "${TMP}/bin"
+  ln -sf "${BATS_TEST_DIRNAME}/stubs/stub" "${TMP}/bin/${program}"
+
+  touch "${TMP}/${program}-stub-plan"
+  for arg in "$@"; do
+    echo "$FLAGS" "$arg" >> "${TMP}/${program}-stub-plan"
+  done
+}
+
+unstub() {
+  local program="$1"
+  local prefix="$(echo "$program" | tr a-z- A-Z_)"
+  local path="${TMP}/bin/${program}"
+
+  export "${prefix}_STUB_END"=1
+
+  local STATUS=0
+  "$path" || STATUS="$?"
+
+  rm -f "$path"
+  rm -f "${TMP}/${program}-stub-plan" "${TMP}/${program}-stub-run"
+  return "$STATUS"
+}
+
+assert() {
+  if ! "$@"; then
+    flunk "failed: $@"
+  fi
+}
+
+flunk() {
+  { if [ "$#" -eq 0 ]; then cat -
+    else echo "$@"
+    fi
+  } | sed "s:${TMP}:\${TMP}:g" >&2
+  return 1
+}
+
+assert_success() {
+  if [ "$status" -ne 0 ]; then
+    { echo "command failed with exit status $status"
+      echo "output: $output"
+    } | flunk
+  elif [ "$#" -gt 0 ]; then
+    assert_output "$1"
+  fi
+}
+
+assert_failure() {
+  if [ "$status" -eq 0 ]; then
+    flunk "expected failed exit status"
+  elif [ "$#" -gt 0 ]; then
+    assert_output "$1"
+  fi
+}
+
+assert_equal() {
+  if [ "$1" != "$2" ]; then
+    { echo "expected:"
+      echo "$1"
+      echo "actual:"
+      echo "$2"
+    } | flunk
+  fi
+}
+
+assert_equal_wildcards() {
+  if [[ $1 != $2 ]]; then
+    { echo "expected:"
+      echo "$2"
+      echo "actual:"
+      echo "$1"
+    } | flunk
+  fi
+}
+
+assert_output() {
+  local expected
+  if [ $# -eq 0 ]; then expected="$(cat -)"
+  else expected="$1"
+  fi
+  assert_equal "$expected" "$output"
+}
+
+assert_output_wildcards() {
+  local expected
+  if [ $# -eq 0 ]; then expected="$(cat -)"
+  else expected="$1"
+  fi
+  assert_equal_wildcards "$output" "$expected"
+}
+
+assert_output_contains() {
+  local expected="$1"
+  echo "$output" | grep -F "$expected" >/dev/null || {
+    { echo "expected output to contain $expected"
+      echo "actual: $output"
+    } | flunk
+  }
+}
+
+assert_output_contains_not() {
+  local expected="$1"
+  echo "$output" | grep -F "$expected" >/dev/null && {
+    { echo "expected output to not contain $expected"
+      echo "actual: $output"
+    } | flunk; return
+  }
+  return 0
+}
+
+create_executable() {
+  mkdir -p "${PYENV_ROOT}/versions/$1/bin"
+  touch "${PYENV_ROOT}/versions/$1/bin/$2"
+  chmod +x "${PYENV_ROOT}/versions/$1/bin/$2"
+}
+
+remove_executable() {
+  rm -f "${PYENV_ROOT}/versions/$1/bin/$2"
+}
+
+setup_version() {
+  create_executable "$1" "python"
+  remove_executable "$1" "activate"
+  remove_executable "$1" "conda"
+}
+
+teardown_version() {
+  rm -fr "${PYENV_ROOT}/versions/$1"
+}
+
+setup_virtualenv() {
+  create_executable "$1" "python"
+  create_executable "$1" "activate"
+  remove_executable "$1" "conda"
+}
+
+teardown_virtualenv() {
+  rm -fr "${PYENV_ROOT}/versions/$1"
+}
+
+setup_m_venv() {
+  create_executable "$1" "python"
+  create_executable "$1" "activate"
+  remove_executable "$1" "conda"
+}
+
+teardown_m_venv() {
+  rm -fr "${PYENV_ROOT}/versions/$1"
+}
+
+setup_conda() {
+  create_executable "$1" "python"
+  create_executable "$1" "activate"
+  create_executable "$1" "conda"
+  local conda="$1"
+  shift 1
+  local env
+  for env; do
+    create_executable "${conda}/envs/${env}" "python"
+    create_executable "${conda}/envs/${env}" "activate"
+    create_executable "${conda}/envs/${env}" "conda"
+    mkdir -p "${PYENV_ROOT}/versions/${conda}/envs/${env}/etc/conda/activate.d"
+    touch "${PYENV_ROOT}/versions/${conda}/envs/${env}/etc/conda/activate.d/activate.sh"
+    mkdir -p "${PYENV_ROOT}/versions/${conda}/envs/${env}/etc/conda/deactivate.d"
+    touch "${PYENV_ROOT}/versions/${conda}/envs/${env}/etc/conda/deactivate.d/deactivate.sh"
+  done
+}
+
+teardown_conda() {
+  rm -fr "${PYENV_ROOT}/versions/$1"
+}
+

test/tmp/.gitignore

@@ -0,0 +1 @@
+*

test/version.bats

@@ -0,0 +1,39 @@
+#!/usr/bin/env bats
+
+load test_helper
+
+setup() {
+  export PYENV_ROOT="${TMP}/pyenv"
+}
+
+@test "display virtualenv version" {
+  setup_virtualenv "2.7.7"
+  stub pyenv-prefix "echo '${PYENV_ROOT}/versions/2.7.7'"
+  stub pyenv-version-name "echo 2.7.7"
+  stub pyenv-exec "python -m venv --help : false"
+  stub pyenv-exec "virtualenv --version : echo \"1.11\""
+
+  run pyenv-virtualenv --version
+
+  assert_success
+  [[ "$output" == "pyenv-virtualenv "?.?.?" (virtualenv 1.11)" ]]
+
+  unstub pyenv-prefix
+  unstub pyenv-exec
+  teardown_virtualenv "2.7.7"
+}
+
+@test "display venv version" {
+  setup_m_venv "3.4.1"
+  stub pyenv-version-name "echo 3.4.1"
+  stub pyenv-prefix "echo '${PYENV_ROOT}/versions/3.4.1'"
+  stub pyenv-exec "python -m venv --help : true"
+
+  run pyenv-virtualenv --version
+
+  assert_success
+  [[ "$output" == "pyenv-virtualenv "?.?.?" (python -m venv)" ]]
+
+  unstub pyenv-prefix
+  teardown_m_venv "3.4.1"
+}

test/virtualenv.bats

@@ -0,0 +1,227 @@
+#!/usr/bin/env bats
+
+load test_helper
+
+setup() {
+  export PYENV_ROOT="${TMP}/pyenv"
+}
+
+stub_pyenv() {
+  setup_version "${PYENV_VERSION}"
+  create_executable "${PYENV_VERSION}" "virtualenv"
+  stub pyenv-prefix "echo '${PYENV_ROOT}/versions/${PYENV_VERSION}'"
+  stub pyenv-prefix "echo '${PYENV_ROOT}/versions/${PYENV_VERSION}'"
+  stub pyenv-hooks "virtualenv : echo"
+  stub pyenv-rehash " : echo rehashed"
+}
+
+unstub_pyenv() {
+  unstub pyenv-prefix
+  unstub pyenv-hooks
+  unstub pyenv-rehash
+  teardown_version "${PYENV_VERSION}"
+}
+
+@test "create virtualenv from given version" {
+  export PYENV_VERSION="2.7.11"
+  stub_pyenv "${PYENV_VERSION}"
+  stub pyenv-virtualenv-prefix " : false"
+  stub pyenv-exec "python -m venv --help : false"
+  stub pyenv-exec "virtualenv * : echo PYENV_VERSION=\${PYENV_VERSION} \"\$@\"; mkdir -p \"\$2/bin\""
+  stub pyenv-exec "python -s -m ensurepip : false"
+  stub pyenv-exec "python -s */get-pip.py : true"
+  stub curl true
+  create_executable "${PYENV_VERSION}" "python-config"
+  create_executable "${PYENV_VERSION}" "python2-config"
+  create_executable "${PYENV_VERSION}" "python2.7-config"
+
+  run pyenv-virtualenv "2.7.11" "venv"
+
+  assert_output <<OUT
+PYENV_VERSION=2.7.11 virtualenv ${PYENV_ROOT}/versions/2.7.11/envs/venv
+Installing pip from https://bootstrap.pypa.io/pip/2.7/get-pip.py...
+rehashed
+OUT
+  assert_success
+  for x in pydoc python-config python2-config python2.7-config; do
+    assert [ -x "${PYENV_ROOT}/versions/2.7.11/envs/venv/bin/$x" ]
+  done
+
+  unstub_pyenv
+  unstub pyenv-virtualenv-prefix
+  unstub pyenv-exec
+  unstub curl
+}
+
+@test "create virtualenv from a given prefix" {
+  stub_pyenv "2.7.11"
+  stub pyenv-virtualenv-prefix " : false"
+  stub pyenv-exec "python -m venv --help : false"
+  stub pyenv-exec "virtualenv * : echo PYENV_VERSION=\${PYENV_VERSION} \"\$@\""
+  stub pyenv-exec "python -s -m ensurepip : false"
+  stub pyenv-exec "python -s */get-pip.py : true"
+  stub curl true
+  stub pyenv-latest "-f 2.7 : echo 2.7.11"
+
+  run pyenv-virtualenv "2.7" "venv"
+
+  assert_output <<OUT
+PYENV_VERSION=2.7.11 virtualenv ${PYENV_ROOT}/versions/2.7.11/envs/venv
+Installing pip from https://bootstrap.pypa.io/pip/2.7/get-pip.py...
+rehashed
+OUT
+  assert [ -x "${PYENV_ROOT}/versions/2.7.11/envs/venv/bin/pydoc" ]
+  assert [ ! -e "${PYENV_ROOT}/versions/2.7" ]
+  assert_success
+
+  unstub_pyenv
+  unstub pyenv-virtualenv-prefix
+  unstub pyenv-exec
+  unstub curl
+}
+
+@test "create virtualenv from current version" {
+  export PYENV_VERSION="2.7.11"
+  stub_pyenv "${PYENV_VERSION}"
+  stub pyenv-version-name "echo \${PYENV_VERSION}"
+  stub pyenv-virtualenv-prefix " : false"
+  stub pyenv-exec "python -m venv --help : false"
+  stub pyenv-exec "virtualenv * : echo PYENV_VERSION=\${PYENV_VERSION} \"\$@\""
+  stub pyenv-exec "python -s -m ensurepip : false"
+  stub pyenv-exec "python -s */get-pip.py : true"
+  stub curl true
+
+  run pyenv-virtualenv venv
+
+  assert_output <<OUT
+PYENV_VERSION=2.7.11 virtualenv ${PYENV_ROOT}/versions/2.7.11/envs/venv
+Installing pip from https://bootstrap.pypa.io/pip/2.7/get-pip.py...
+rehashed
+OUT
+  assert [ -x "${PYENV_ROOT}/versions/2.7.11/envs/venv/bin/pydoc" ]
+  assert_success
+
+  unstub_pyenv
+  unstub pyenv-version-name
+  unstub pyenv-virtualenv-prefix
+  unstub pyenv-exec
+  unstub curl
+}
+
+@test "create virtualenv with short options" {
+  export PYENV_VERSION="2.7.11"
+  stub_pyenv "${PYENV_VERSION}"
+  stub pyenv-version-name "echo \${PYENV_VERSION}"
+  stub pyenv-virtualenv-prefix " : false"
+  stub pyenv-exec "python -m venv --help : false"
+  stub pyenv-exec "virtualenv * : echo PYENV_VERSION=\${PYENV_VERSION} \"\$@\""
+  stub pyenv-exec "python -s -m ensurepip : false"
+  stub pyenv-exec "python -s */get-pip.py : true"
+  stub curl true
+
+  run pyenv-virtualenv -v -p ${TMP}/python venv
+
+  assert_output <<OUT
+PYENV_VERSION=2.7.11 virtualenv --verbose --python=${TMP}/python ${PYENV_ROOT}/versions/2.7.11/envs/venv
+Installing pip from https://bootstrap.pypa.io/pip/2.7/get-pip.py...
+rehashed
+OUT
+  assert [ -x "${PYENV_ROOT}/versions/2.7.11/envs/venv/bin/pydoc" ]
+  assert_success
+
+  unstub_pyenv
+  unstub pyenv-version-name
+  unstub pyenv-virtualenv-prefix
+  unstub pyenv-exec
+  unstub curl
+}
+
+@test "create virtualenv with long options" {
+  export PYENV_VERSION="2.7.11"
+  stub_pyenv "${PYENV_VERSION}"
+  stub pyenv-version-name "echo \${PYENV_VERSION}"
+  stub pyenv-virtualenv-prefix " : false"
+  stub pyenv-exec "python -m venv --help : false"
+  stub pyenv-exec "virtualenv * : echo PYENV_VERSION=\${PYENV_VERSION} \"\$@\""
+  stub pyenv-exec "python -s -m ensurepip : false"
+  stub pyenv-exec "python -s */get-pip.py : true"
+  stub curl true
+
+  run pyenv-virtualenv --verbose --python=${TMP}/python venv
+
+  assert_output <<OUT
+PYENV_VERSION=2.7.11 virtualenv --verbose --python=${TMP}/python ${PYENV_ROOT}/versions/2.7.11/envs/venv
+Installing pip from https://bootstrap.pypa.io/pip/2.7/get-pip.py...
+rehashed
+OUT
+  assert [ -x "${PYENV_ROOT}/versions/2.7.11/envs/venv/bin/pydoc" ]
+  assert_success
+
+  unstub_pyenv
+  unstub pyenv-version-name
+  unstub pyenv-virtualenv-prefix
+  unstub pyenv-exec
+  unstub curl
+}
+
+@test "no whitespace allowed in virtualenv name" {
+  run pyenv-virtualenv "2.7.11" "foo bar"
+
+  assert_failure
+  assert_output <<OUT
+pyenv-virtualenv: no whitespace allowed in virtualenv name.
+OUT
+}
+
+@test "no tab allowed in virtualenv name" {
+  run pyenv-virtualenv "2.7.11" "foo	bar baz"
+
+  assert_failure
+  assert_output <<OUT
+pyenv-virtualenv: no whitespace allowed in virtualenv name.
+OUT
+}
+
+@test "system not allowed as virtualenv name" {
+  run pyenv-virtualenv "2.7.11" "system"
+
+  assert_failure
+  assert_output <<OUT
+pyenv-virtualenv: \`system' is not allowed as virtualenv name.
+OUT
+}
+
+@test "no slash allowed in virtualenv name" {
+  run pyenv-virtualenv "2.7.11" "foo/bar"
+
+  assert_failure
+  assert_output <<OUT
+pyenv-virtualenv: no slash allowed in virtualenv name.
+OUT
+}
+
+@test "slash allowed if it is the long name of the virtualenv" {
+  export PYENV_VERSION="2.7.11"
+  stub_pyenv "${PYENV_VERSION}"
+  stub pyenv-virtualenv-prefix " : false"
+  stub pyenv-exec "python -m venv --help : false"
+  stub pyenv-exec "virtualenv * : echo PYENV_VERSION=\${PYENV_VERSION} \"\$@\""
+  stub pyenv-exec "python -s -m ensurepip : false"
+  stub pyenv-exec "python -s */get-pip.py : true"
+  stub curl true
+
+  run pyenv-virtualenv "2.7.11" "2.7.11/envs/foo"
+
+  assert_output <<OUT
+PYENV_VERSION=2.7.11 virtualenv ${PYENV_ROOT}/versions/2.7.11/envs/foo
+Installing pip from https://bootstrap.pypa.io/pip/2.7/get-pip.py...
+rehashed
+OUT
+  assert [ -x "${PYENV_ROOT}/versions/2.7.11/envs/foo/bin/pydoc" ]
+  assert_success
+
+  unstub_pyenv
+  unstub pyenv-virtualenv-prefix
+  unstub pyenv-exec
+  unstub curl
+}

test/virtualenvs.bats

@@ -0,0 +1,182 @@
+#!/usr/bin/env bats
+
+load test_helper
+
+create_m_system_venv() {
+  # Create a mock virtual environment in the same way a venv created from
+  # the system Python version looks.
+  #
+  # The venv is in ${PYENV_ROOT}/versions, is not a symlink, and
+  # home is /usr/bin in the pyenv.cfg.
+  create_executable "$2" "python"
+  create_executable "$2" "activate"
+
+  local version="$1"
+  local venv="$2"
+  local venv_dir="${PYENV_ROOT}/versions/${venv}"
+
+  echo "home = /usr/bin" > "${venv_dir}/pyvenv.cfg"
+}
+
+
+create_m_venv() {
+  # Create a mock virtual environment from an installed (not system) Python version.
+  #
+  # The venv name is a symlink inside ${PYENV_ROOT}/versions that points to
+  # the real venv directory inside the Python version used to created and
+  # home points to the bin directory inside the venv dir.
+  setup_m_venv "$1/envs/$2"
+
+  local version="$1"
+  local venv="$2"
+  local venv_dir="${PYENV_ROOT}/versions/${version}/envs/${venv}"
+
+  echo "home = ${PYENV_ROOT}/versions/${version}/bin" > "${venv_dir}/pyvenv.cfg"
+  ln -sf "${venv_dir}" "${PYENV_ROOT}/versions/${venv}"
+}
+
+setup() {
+  export PYENV_ROOT="${TMP}/pyenv"
+}
+
+@test "system venv" {
+  stub pyenv-version-name ": echo venv314"
+  stub pyenv-version-origin ": echo PYENV_VERSION"
+
+  create_m_venv "3.14.3" "venv314"
+  create_m_system_venv "3.9.11" "system_venv"
+
+  run pyenv-virtualenvs
+
+  assert_success
+  assert_output <<OUT
+  3.14.3/envs/venv314 (created from ${PYENV_ROOT}/versions/3.14.3)
+  system_venv (created from /usr)
+* venv314 --> ${PYENV_ROOT}/versions/3.14.3/envs/venv314 (set by PYENV_VERSION)
+OUT
+
+  unstub pyenv-version-name
+  unstub pyenv-version-origin
+}
+
+@test "list virtual environments" {
+  stub pyenv-version-name ": echo system"
+  stub pyenv-virtualenv-prefix "2.7.6/envs/venv27 : echo \"${PYENV_ROOT}/versions/2.7.6\""
+  stub pyenv-virtualenv-prefix "3.3.3/envs/venv33 : echo \"${PYENV_ROOT}/versions/3.3.3\""
+
+  create_m_venv "2.7.6" "venv27"
+  create_m_venv "3.3.3" "venv33"
+
+  run pyenv-virtualenvs
+
+  assert_success
+  assert_output <<OUT
+  2.7.6/envs/venv27 (created from ${PYENV_ROOT}/versions/2.7.6)
+  3.3.3/envs/venv33 (created from ${PYENV_ROOT}/versions/3.3.3)
+  venv27 --> ${PYENV_ROOT}/versions/2.7.6/envs/venv27
+  venv33 --> ${PYENV_ROOT}/versions/3.3.3/envs/venv33
+OUT
+
+  unstub pyenv-version-name
+  unstub pyenv-virtualenv-prefix
+}
+
+@test "list virtual environments with hit prefix" {
+  stub pyenv-version-name ": echo 3.3.3/envs/venv33"
+  stub pyenv-version-origin ": echo PYENV_VERSION"
+
+  create_m_venv "2.7.6" "venv27"
+  create_m_venv "3.3.3" "venv33"
+
+  run pyenv-virtualenvs
+
+  assert_success
+  assert_output <<OUT
+  2.7.6/envs/venv27 (created from ${PYENV_ROOT}/versions/2.7.6)
+* 3.3.3/envs/venv33 (created from ${PYENV_ROOT}/versions/3.3.3) (set by PYENV_VERSION)
+  venv27 --> ${PYENV_ROOT}/versions/2.7.6/envs/venv27
+  venv33 --> ${PYENV_ROOT}/versions/3.3.3/envs/venv33
+OUT
+
+  unstub pyenv-version-name
+  unstub pyenv-version-origin
+}
+
+@test "list bare virtual environments" {
+  create_m_venv "2.7.6" "venv27"
+  create_m_venv "3.3.3" "venv33"
+
+  run pyenv-virtualenvs --bare
+
+  assert_success
+  assert_output <<OUT
+2.7.6/envs/venv27
+3.3.3/envs/venv33
+venv27
+venv33
+OUT
+}
+
+@test "list bare virtual environments without aliases" {
+  create_m_venv "2.7.6" "venv27"
+  create_m_venv "3.3.3" "venv33"
+
+  run pyenv-virtualenvs --bare --skip-aliases
+
+  assert_success
+  assert_output <<OUT
+2.7.6/envs/venv27
+3.3.3/envs/venv33
+OUT
+}
+
+@test "list virtual environments without aliases" {
+  stub pyenv-version-name ": echo system"
+
+  create_m_venv "2.7.6" "venv27"
+  create_m_venv "3.3.3" "venv33"
+
+  run pyenv-virtualenvs --skip-aliases
+
+  assert_success
+  assert_output <<OUT
+  2.7.6/envs/venv27 (created from ${PYENV_ROOT}/versions/2.7.6)
+  3.3.3/envs/venv33 (created from ${PYENV_ROOT}/versions/3.3.3)
+OUT
+
+  unstub pyenv-version-name
+}
+
+@test "hit prefix matches alias version name" {
+  stub pyenv-version-name ": echo venv27"
+  stub pyenv-version-origin ": echo PYENV_VERSION"
+
+  create_m_venv "2.7.6" "venv27"
+  create_m_venv "3.3.3" "venv33"
+
+  run pyenv-virtualenvs
+
+  assert_success
+  assert_output <<OUT
+  2.7.6/envs/venv27 (created from ${PYENV_ROOT}/versions/2.7.6)
+  3.3.3/envs/venv33 (created from ${PYENV_ROOT}/versions/3.3.3)
+* venv27 --> ${PYENV_ROOT}/versions/2.7.6/envs/venv27 (set by PYENV_VERSION)
+  venv33 --> ${PYENV_ROOT}/versions/3.3.3/envs/venv33
+OUT
+
+  unstub pyenv-version-name
+  unstub pyenv-version-origin
+}
+
+@test "completions output" {
+  create_m_venv "2.7.6" "venv27"
+  create_m_venv "3.3.3" "venv33"
+
+  run pyenv-virtualenvs --complete
+
+  assert_success
+  assert_output <<OUT
+--bare
+--skip-aliases
+OUT
+}