Release History

v16.7.9 (2019-12-15)


  • upgrade setuptools from 41.6.0 to 42.0.2 (#1460)

v16.7.8 (2019-11-22)


  • upgrade setuptools from 41.4.0 to 41.6.0 (#1442)

v16.7.7 (2019-10-22)


    • fix virtualenv creation when --no-pip argument used. (#1430)
  • upgrade bundled pip from 19.3 to 19.3.1 (#1433)

v16.7.6 (2019-10-16)


  • fix to support for Python 3 on MacOS 10.15 provided by Xcode (#1402)
  • bump bundled pip from 19.2.3 to 19.3 and setuptools from 41.2.0 to 41.4.0 (#1428)

v16.7.5 (2019-09-03)


  • upgrade pip from 19.2.2 to 19.2.3 (#1414)

v16.7.4 (2019-08-23)


    • fix powershell activation when sourced (#1398)
    • upgrade wheel from 0.33.4 to 0.33.6 and setuptools from 41.1.0 to 41.2.0 (#1409)

v16.7.3 (2019-08-16)


  • upgrade pip from 19.1.1 to 19.2.2 and setuptools from 41.0.1 to 41.1.0 (#1404)

v16.7.2 (2019-07-26)


  • fix regression - sh activation script not working under sh (only bash) (#1396)

v16.7.1 (2019-07-25)


  • pip bumped to 19.2.1 (#1392)

v16.7.0 (2019-07-23)


  • activate.ps1 syntax and style updated to follow PSStyleAnalyzer rules (#1371)
  • Allow creating virtual environments for 3.xy. (#1385)
  • Report error when running activate scripts directly, instead of sourcing. By reporting an error instead of running silently, the user get immediate feedback that the script was not used correctly. Only Bash and PowerShell are supported for now. (#1388)
    • add pip 19.2 (19.1.1 is kept to still support python 3.4 dropped by latest pip) (#1389)

v16.6.2 (2019-07-14)


  • Extend the LICENSE search paths list by lib64/pythonX.Y to support Linux vendors who install their Python to /usr/lib64/pythonX.Y (Gentoo, Fedora, openSUSE, RHEL and others) - by hroncok (#1382)

v16.6.1 (2019-06-16)


  • Raise an error if the target path contains the operating systems path separator (using this would break our activation scripts) - by @rrauenza. (#395)
  • Fix an additional issue with #1339, where the user specifies --python pointing to a venv redirector executable. (#1364)

v16.6.0 (2019-05-15)


  • Drop Jython support. Jython became slower and slower in the last few months and significantly holds back our CI and development. As there’s very little user base for it decided to drop support for it. If there are Jython developers reach out to us to see how we can add back support. (#1354)

  • Upgrade embedded packages:

    • upgrade wheel from 0.33.1 to 0.33.4
    • upgrade pip from 19.1 to 19.1.1 (#1356)

v16.5.0 (2019-04-24)


  • Add tests covering prompt manipulation during activation/deactivation, and harmonize behavior of all supported shells - by bskinn (#1330)
  • Handle running virtualenv from within a virtual environment created using the stdlib venv module. Fixes #1339. (#1345)


  • -p option accepts Python version in following formats now: X, X-ZZ, X.Y and X.Y-ZZ, where ZZ is 32 or 64. (Windows only) (#1340)
  • upgrade pip from 19.0.3 to 19.1 (#1346)
  • upgrade setuptools from 40.8.0 to ``41.0.1 (#1346)

v16.4.3 (2019-03-01)


  • Revert the symlink fix, causing debian packaging issues. (#1390)

v16.4.1 (2019-02-22)


  • Fix license() builtin by copying the LICENSE file into the virtualenv - by asottile. (#1317)


  • bump vendored pip to 19.0.3 and wheel to 0.33.1 (#1321)

v16.4.0 (2019-02-09)


  • fixes the scenario where the python base install is symlinked with relative symlinks (#490)
  • Use importlib over imp in for python >= 3.4 - by Anthony Sottile (#1293)
  • Copy or link PyPy header files instead of include directory itself (#1302)
  • Allow virtualenv creation with older pip not having config command correspondingly disabling configuration related features (such as pip cert setting) in this case. (#1303)


  • upgrade to pip 19.0.2 and setuptools 40.8.0 (#1312)

v16.3.0 (2019-01-25)


  • Use importlib over deprecated imp` in ``distutils/ for python 3 - by Anthony Sottile (#955)
  • Preserve cert option defined in pip.conf or environment variable. (#1273)
  • fixed a ResourceWarning: unclosed file in call_subprocess() - by Mickaël Schoentgen (#1277)
  • pre-import some built-in modules in on PyPy according to PyPy’s - by microdog (#1281)
  • Copy files from sys.exec_prefix only if it is really different path than used prefix, bugfix for #1270 (#1282)


  • Enable virtualenv to be distributed as a zipapp or to be run as a wheel with PYTHONPATH=virtualenv...any.whl python -mvirtualenv - by Anthony Sottile (#1092)
  • bump vendored pip from 18.1 to 19.0.1 (#1291)


  • discourage installation as root, including sudo - by altendky (#1061)

v16.2.0 (2018-12-31)


  • copyfile handles relative symlinks and symlinks to symlinks, avoiding problems when Python was installed using stow or homebrew. (#268)
  • Fix preserving of original path when using fish and a subshell. (#904)
  • Drop the source layout of the project, going back to how the source was laid out before 16.1.0. (#1241)
  • Fix bootstrap script generation broken with 16.0.0. Support now both CPython, pypy, jython. (#1244)
  • lib64 symlink is again relative (as was with < 16.1.0). (#1248)


  • fish version 3 support for the activation script. (#1275)
  • powershell activator is no longer signed. (#816)
  • pyproject.toml with PEP-517 and PEP-518 is now provided. tox.ini is now packaged with the sdist. Distributions repackaging the library should use tox -e py to run the test suite on the sdist. (#909)
  • improvements: set VIRTUAL_ENV environment variable; pypy, pypy3 and jython support. (#1057)
  • The xonsh shell is now supported by generating the activation script. (#1206)
  • Support pip wheels with removed certifi's cacert.pem. (#1252)
  • Upgrade setuptools from 40.5.0 to 40.6.3 and wheel from 0.32.2 to 0.32.3. (#1257)
  • powershell now also provides the pydoc function that uses the virtual environments pydoc. (#1258)
  • Migrate to a setup.cfg based build. Minimum setuptools required to build is setuptools >= 40.6.3, this is automatically acquired for all PEP-518 builders (recommended), or acquired via the old setup_requires method otherwise. Move exclusively to a setuptools generated console entry point script, this now does make setuptools >= 18.0.0 a runtime dependency (install requires). Source and issue tracker now is shown on PyPi (supplied as package metadata) beside the homepage. (#1259)

Deprecations (removal in next major release)

  • Using python test is now marked as deprecated and will be removed in next release. Use tox instead, always. (#909)
  • Using the project directly from the source layout is now deprecated. Going ahead people wanting to use the project without installing the virtualenv are encouraged to download the wheel from PyPi and extract it to access the file. We’ll be switching to a src layout with next release. (#1241)
  • No longer support distutils build/installation, now setuptools >= 40.6.3 is required. (#1259)


  • recommend exec(open(this_file).read(), {'__file__': this_file}) as it works both on Python 2 and 3. (#1057)
  • Clarify how this project relates to the standard libraries venv and when one would still want to use this tool. (#1086)
  • Move to a towncrier generated changelog to avoid merge conflicts, generate draft changelog documentation. Prefix version string in changelog with v to make the hyperlinks stable. (#1234)

v16.1.0 (2018-10-31)

  • Fixed documentation to use and correct curl options; #1042
  • bug fix: ensure prefix is absolute when creating a new virtual environment #1208
  • upgrade setuptools from 39.1.0 to 40.5.0
  • upgrade wheel from 0.31.1 to 0.32.2
  • upgrade pip from 10.0.1 to 18.1
  • activate.csh does not use basename and handles newlines #1200
  • fix failure to copy on platforms that use lib64 #1189
  • enable tab-completion in the interactive interpreter by default, thanks to a new sys.__interactivehook__ on Python 3 #967
  • suppress warning of usage of the deprecated imp module #1238

v16.0.0 (2018-05-16)

  • Drop support for Python 2.6.
  • Upgrade pip to 10.0.1.
  • Upgrade setuptools to 39.1.0.
  • Upgrade wheel to 0.31.1.

v15.2.0 (2018-03-21)

  • Upgrade setuptools to 39.0.1.
  • Upgrade pip to 9.0.3.
  • Upgrade wheel to 0.30.0.

v15.1.0 (2016-11-15)

  • Support Python 3.6.
  • Upgrade setuptools to 28.0.0.
  • Upgrade pip to 9.0.1.
  • Don’t install pre-release versions of pip, setuptools, or wheel from PyPI.

v15.0.3 (2016-08-05)

  • Test for given python path actually being an executable file, #939
  • Only search for copy actual existing Tcl/Tk directories (PR #937)
  • Generically search for correct Tcl/Tk version (PR #926, PR #933)
  • Upgrade setuptools to 22.0.5

v15.0.2 (2016-05-28)

  • Copy Tcl/Tk libs on Windows to allow them to run, fixes #93 (PR #888)
  • Upgrade setuptools to 21.2.1.
  • Upgrade pip to 8.1.2.

v15.0.1 (2016-03-17)

  • Print error message when DEST_DIR exists and is a file
  • Upgrade setuptools to 20.3
  • Upgrade pip to 8.1.1.

v15.0.0 (2016-03-05)

  • Remove the virtualenv-N.N script from the package; this can no longer be correctly created from a wheel installation. Resolves #851, #692
  • Remove accidental runtime dependency on pip by extracting certificate in the subprocess.
  • Upgrade setuptools 20.2.2.
  • Upgrade pip to 8.1.0.

v14.0.6 (2016-02-07)

  • Upgrade setuptools to 20.0
  • Upgrade wheel to 0.29.0
  • Fix an error where virtualenv didn’t pass in a working ssl certificate for pip, causing “weird” errors related to ssl.

v14.0.5 (2016-02-01)

  • Homogenize drive letter casing for both prefixes and filenames. #858

v14.0.4 (2016-01-31)

  • Upgrade setuptools to 19.6.2
  • Revert ac4ea65; only correct drive letter case. Fixes #856, #815

v14.0.3 (2016-01-28)

  • Upgrade setuptools to 19.6.1

v14.0.2 (2016-01-28)

  • Upgrade setuptools to 19.6
  • Suppress any errors from unset on different shells (PR #843)
  • Normalize letter case for prefix path checking. Fixes #837

v14.0.1 (2016-01-21)

  • Upgrade from pip 8.0.0 to 8.0.2.
  • Fix the default of --(no-)download to default to downloading.

v14.0.0 (2016-01-19)

  • BACKWARDS INCOMPATIBLE Drop support for Python 3.2.
  • Upgrade setuptools to 19.4
  • Upgrade wheel to 0.26.0
  • Upgrade pip to 8.0.0
  • Upgrade argparse to 1.4.0
  • Added support for python-config script (PR #798)
  • Updated (PR #589) (PR #799)
  • Account for a site.pyo correctly in some python implementations (PR #759)
  • Properly restore an empty PS1 (#407)
  • Properly remove pydoc when deactivating
  • Remove workaround for very old Mageia / Mandriva linuxes (PR #472)
  • Added a space after virtualenv name in the prompt: (env) $PS1
  • Make sure not to run a –user install when creating the virtualenv (PR #803)
  • Remove’s path from sys.path when executing with a new python. Fixes issue #779, #763 (PR #805)
  • Remove use of () in .bat files so Program Files (x86) works #35
  • Download new releases of the preinstalled software from PyPI when there are new releases available. This behavior can be disabled using --no-download.
  • Make --no-setuptools, --no-pip, and --no-wheel independent of each other.

v13.1.2 (2015-08-23)

  • Upgrade pip to 7.1.2.

v13.1.1 (2015-08-20)

  • Upgrade pip to 7.1.1.
  • Upgrade setuptools to 18.2.
  • Make the activate script safe to use when bash is running with -u.

v13.1.0 (2015-06-30)

  • Upgrade pip to 7.1.0
  • Upgrade setuptools to 18.0.1

v13.0.3 (2015-06-01)

  • Upgrade pip to 7.0.3

v13.0.2 (2015-06-01)

  • Upgrade pip to 7.0.2
  • Upgrade setuptools to 17.0

v13.0.1 (2015-05-22)

  • Upgrade pip to 7.0.1

v13.0.0 (2015-05-21)

  • Automatically install wheel when creating a new virutalenv. This can be disabled by using the --no-wheel option.
  • Don’t trust the current directory as a location to discover files to install packages from.
  • Upgrade setuptools to 16.0.
  • Upgrade pip to 7.0.0.

v12.1.1 (2015-04-07)

  • Upgrade pip to 6.1.1

v12.1.0 (2015-04-07)

  • Upgrade setuptools to 15.0
  • Upgrade pip to 6.1.0

v12.0.7 (2015-02-04)

  • Upgrade pip to 6.0.8

v12.0.6 (2015-01-28)

  • Upgrade pip to 6.0.7
  • Upgrade setuptools to 12.0.5

v12.0.5 (2015-01-03)

  • Upgrade pip to 6.0.6
  • Upgrade setuptools to 11.0

v12.0.4 (2014-12-23)

  • Revert the fix to -p on Debian based pythons as it was broken in other situations.
  • Revert several sys.path changes new in 12.0 which were breaking virtualenv.

v12.0.3 (2014-12-23)

  • Fix an issue where Debian based Pythons would fail when using -p with the host Python.
  • Upgrade pip to 6.0.3

v12.0.2 (2014-12-23)

  • Upgraded pip to 6.0.2

v12.0.1 (2014-12-22)

  • Upgraded pip to 6.0.1

v12.0 (2014-12-22)

  • PROCESS Version numbers are now simply X.Y where the leading 1 has been dropped.
  • Split up documentation into structured pages
  • Now using pytest framework
  • Correct sys.path ordering for debian, issue #461
  • Correctly throws error on older Pythons, issue #619
  • Allow for empty $PATH, pull #601
  • Don’t set prompt if $env:VIRTUAL_ENV_DISABLE_PROMPT is set for Powershell
  • Updated setuptools to 7.0

v1.11.6 (2014-05-16)

  • Updated setuptools to 3.6
  • Updated pip to 1.5.6

v1.11.5 (2014-05-03)

v1.11.4 (2014-02-21)

  • Updated pip to 1.5.4

v1.11.3 (2014-02-20)

  • Updated setuptools to 2.2
  • Updated pip to 1.5.3

v1.11.2 (2014-01-26)

  • Fixed easy_install installed virtualenvs by updated pip to 1.5.2

v1.11.1 (2014-01-20)

  • Fixed an issue where pip and setuptools were not getting installed when using the --system-site-packages flag.
  • Updated setuptools to fix an issue when installed with easy_install
  • Fixed an issue with Python 3.4 and sys.stdout encoding being set to ascii
  • Upgraded pip to v1.5.1
  • Upgraded setuptools to v2.1

v1.11 (2014-01-02)

  • BACKWARDS INCOMPATIBLE Switched to using wheels for the bundled copies of setuptools and pip. Using sdists is no longer supported - users supplying their own versions of pip/setuptools will need to provide wheels.
  • BACKWARDS INCOMPATIBLE Modified the handling of --extra-search-dirs. This option now works like pip’s --find-links option, in that it adds extra directories to search for compatible wheels for pip and setuptools. The actual wheel selected is chosen based on version and compatibility, using the same algorithm as pip install setuptools.
  • Fixed #495, –always-copy was failing (#PR 511)
  • Upgraded pip to v1.5
  • Upgraded setuptools to v1.4

v1.10.1 (2013-08-07)

  • New Signing Key Release 1.10.1 is using a different key than normal with fingerprint: 7C6B 7C5D 5E2B 6356 A926 F04F 6E3C BCE9 3372 DCFA
  • Upgraded pip to v1.4.1
  • Upgraded setuptools to v0.9.8

v1.10 (2013-07-23)

  • BACKWARDS INCOMPATIBLE Dropped support for Python 2.5. The minimum supported Python version is now Python 2.6.

  • BACKWARDS INCOMPATIBLE Using as an isolated script (i.e. without an associated virtualenv_support directory) is no longer supported for security reasons and will fail with an error.

    Along with this, --never-download is now always pinned to True, and is only being maintained in the short term for backward compatibility (Pull #412).

  • IMPORTANT Switched to the new setuptools (v0.9.7) which has been merged with Distribute again and works for Python 2 and 3 with one codebase. The --distribute and --setuptools options are now no-op.

  • Updated to pip 1.4.

  • Added support for PyPy3k

  • Added --always-copy option to suppress use of symlinks (Pull #409)

  • Added the option to use a version number with the -p option to get the system copy of that Python version (Windows only)

  • Removed embedded, and files as part of switching to merged setuptools.

  • Fixed --relocatable to work better on Windows.

  • Fixed issue with readline on Windows.

v1.9.1 (2013-03-08)

  • Updated to pip 1.3.1 that fixed a major backward incompatible change of parsing URLs to externally hosted packages that got accidentily included in pip 1.3.

v1.9 (2013-03-07)

  • Unset VIRTUAL_ENV environment variable in deactivate.bat (Pull #364)
  • Upgraded distribute to 0.6.34.
  • Added --no-setuptools and --no-pip options (Pull #336).
  • Fixed Issue #373. virtualenv-1.8.4 was failing in cygwin (Pull #382).
  • Fixed Issue #378. virtualenv is now “multiarch” aware on debian/ubuntu (Pull #379).
  • Fixed issue with readline module path on pypy and OSX (Pull #374).
  • Made 64bit detection compatible with Python 2.5 (Pull #393).

v1.8.4 (2012-11-25)

  • Updated distribute to 0.6.31. This fixes #359 (numpy install regression) on UTF-8 platforms, and provides a workaround on other platforms: PYTHONIOENCODING=utf8 pip install numpy.
  • When installing virtualenv via curl, don’t forget to filter out arguments the distribute setup script won’t understand. Fixes #358.
  • Added some more integration tests.
  • Removed the unsupported embedded setuptools egg for Python 2.4 to reduce file size.

v1.8.3 (2012-11-21)

  • Fixed readline on OS X. Thanks minrk
  • Updated distribute to 0.6.30 (improves our error reporting, plus new distribute features and fixes). Thanks Gabriel (g2p)
  • Added compatibility with multiarch Python (Python 3.3 for example). Added an integration test. Thanks Gabriel (g2p)
  • Added ability to install distribute from a user-provided egg, rather than the bundled sdist, for better speed. Thanks Paul Moore.
  • Make the creation of lib64 symlink smarter about already-existing symlink, and more explicit about full paths. Fixes #334 and #330. Thanks Jeremy Orem.
  • Give lib64 site-dir preference over lib on 64-bit systems, to avoid wrong 32-bit compiles in the venv. Fixes #328. Thanks Damien Nozay.
  • Fix a bug with prompt-handling in activate.csh in non-interactive csh shells. Fixes #332. Thanks Benjamin Root for report and patch.
  • Make it possible to create a virtualenv from within a Python 3.3. pyvenv. Thanks Chris McDonough for the report.
  • Add optional –setuptools option to be able to switch to it in case distribute is the default (like in Debian).

v1.8.2 (2012-09-06)

  • Updated the included pip version to 1.2.1 to fix regressions introduced there in 1.2.

v1.8.1 (2012-09-03)

  • Fixed distribute version used with --never-download. Thanks michr for report and patch.
  • Fix creating Python 3.3 based virtualenvs by unsetting the __PYVENV_LAUNCHER__ environment variable in subprocesses.

v1.8 (2012-09-01)

  • Dropped support for Python 2.4 The minimum supported Python version is now Python 2.5.
  • Fix --relocatable on systems that use lib64. Fixes #78. Thanks Branden Rolston.
  • Symlink some additional modules under Python 3. Fixes #194. Thanks Vinay Sajip, Ian Clelland, and Stefan Holek for the report.
  • Fix --relocatable when a script uses __future__ imports. Thanks Branden Rolston.
  • Fix a bug in the config option parser that prevented setting negative options with environment variables. Thanks Ralf Schmitt.
  • Allow setting --no-site-packages from the config file.
  • Use /usr/bin/multiarch-platform if available to figure out the include directory. Thanks for the patch, Mika Laitio.
  • Fix install_name_tool replacement to work on Python 3.X.
  • Handle paths of users’ site-packages on Mac OS X correctly when changing the prefix.
  • Updated the embedded version of distribute to 0.6.28 and pip to 1.2.

v1.7.2 (2012-06-22)

  • Updated to distribute 0.6.27.
  • Fix on OS X. Fixes #8. Thanks David Schoonover.
  • Create a virtualenv-x.x script with the Python version when installing, so virtualenv for multiple Python versions can be installed to the same script location. Thanks Miki Tebeka.
  • Restored ability to create a virtualenv with a path longer than 78 characters, without breaking creation of virtualenvs with non-ASCII paths. Thanks, Bradley Ayers.
  • Added ability to create virtualenvs without having installed Apple’s developers tools (using an own implementation of install_name_tool). Thanks Mike Hommey.
  • Fixed PyPy and Jython support on Windows. Thanks Konstantin Zemlyak.
  • Added pydoc script to ease use. Thanks Marc Abramowitz. Fixes #149.
  • Fixed creating a bootstrap script on Python 3. Thanks Raul Leal. Fixes #280.
  • Fixed inconsistency when having set the PYTHONDONTWRITEBYTECODE env var with the –distribute option or the VIRTUALENV_USE_DISTRIBUTE env var. VIRTUALENV_USE_DISTRIBUTE is now considered again as a legacy alias.

v1.7.1.2 (2012-02-17)

  • Fixed minor issue in --relocatable. Thanks, Cap Petschulat.

v1.7.1.1 (2012-02-16)

  • Bumped the version string in up, too.
  • Fixed rST rendering bug of long description.

v1.7.1 (2012-02-16)

  • Update embedded pip to version 1.1.
  • Fix --relocatable under Python 3. Thanks Doug Hellmann.
  • Added environ PATH modification to Thanks Doug Napoleone. Fixes #14.
  • Support creating virtualenvs directly from a Python build directory on Windows. Thanks CBWhiz. Fixes #139.
  • Use non-recursive symlinks to fix things up for posix_local install scheme. Thanks michr.
  • Made activate script available for use with msys and cygwin on Windows. Thanks Greg Haskins, Cliff Xuan, Jonathan Griffin and Doug Napoleone. Fixes #176.
  • Fixed creation of virtualenvs on Windows when Python is not installed for all users. Thanks Anatoly Techtonik for report and patch and Doug Napoleone for testing and confirmation. Fixes #87.
  • Fixed creation of virtualenvs using -p in installs where some modules that ought to be in the standard library (e.g. readline) are actually installed in site-packages next to Thanks Greg Haskins for report and fix. Fixes #167.
  • Added activation script for Powershell (signed by Jannis Leidel). Many thanks to Jason R. Coombs.

v1.7 (2011-11-30)

  • Gave user-provided --extra-search-dir priority over default dirs for finding setuptools/distribute (it already had priority for finding pip). Thanks Ethan Jucovy.
  • Updated embedded Distribute release to 0.6.24. Thanks Alex Gronholm.
  • Made --no-site-packages behavior the default behavior. The --no-site-packages flag is still permitted, but displays a warning when used. Thanks Chris McDonough.
  • New flag: --system-site-packages; this flag should be passed to get the previous default global-site-package-including behavior back.
  • Added ability to set command options as environment variables and options in a virtualenv.ini file.
  • Fixed various encoding related issues with paths. Thanks Gunnlaugur Thor Briem.
  • Made script executable.

v1.6.4 (2011-07-21)

  • Restored ability to run on Python 2.4, too.

v1.6.3 (2011-07-16)

  • Restored ability to run on Python < 2.7.

v1.6.2 (2011-07-16)

  • Updated embedded distribute release to 0.6.19.
  • Updated embedded pip release to 1.0.2.
  • Fixed #141 - Be smarter about finding pkg_resources when using the non-default Python interpreter (by using the -p option).
  • Fixed #112 - Fixed path in docs.
  • Fixed #109 - Corrected doctests of a Logger method.
  • Fixed #118 - Fixed creating virtualenvs on platforms that use the “posix_local” install scheme, such as Ubuntu with Python 2.7.
  • Add missing library to Python 3 virtualenvs (_dummy_thread).

v1.6.1 (2011-04-30)

  • Start to use git-flow.
  • Added support for PyPy 1.5
  • Fixed #121 – added sanity-checking of the -p argument. Thanks Paul Nasrat.
  • Added progress meter for pip installation as well as setuptools. Thanks Ethan Jucovy.
  • Added –never-download and –search-dir options. Thanks Ethan Jucovy.


  • Added Python 3 support! Huge thanks to Vinay Sajip and Vitaly Babiy.
  • Fixed creation of virtualenvs on Mac OS X when standard library modules (readline) are installed outside the standard library.
  • Updated bundled pip to 1.0.



  • Added _weakrefset requirement for Python 2.7.1.
  • Fixed Windows regression in 1.5


  • Include pip 0.8.1.
  • Add support for PyPy.
  • Uses a proper temporary dir when installing environment requirements.
  • Add --prompt option to be able to override the default prompt prefix.
  • Fix an issue with --relocatable on Windows.
  • Fix issue with installing the wrong version of distribute.
  • Add fish and csh activate scripts.


  • Include pip 0.7.2


  • Fix for Mac OS X Framework builds that use --universal-archs=intel
  • Fix on Windows.
  • Allow $PYTHONHOME to be set, so long as you use source bin/activate it will get unset; if you leave it set and do not activate the environment it will still break the environment.
  • Include pip 0.7.1


  • Include pip 0.7


  • Allow to skip updating the prompt (by setting $VIRTUAL_ENV_DISABLE_PROMPT).


  • Include pip 0.6.3
  • Fix activate.bat and deactivate.bat under Windows when PATH contained a parenthesis


  • Include pip 0.6.2 and Distribute 0.6.10
  • Create the virtualenv script even when Setuptools isn’t installed
  • Fix problem with virtualenv --relocate when bin/ has subdirectories (e.g., bin/.svn/); from Alan Franzoni.
  • If you set $VIRTUALENV_DISTRIBUTE then virtualenv will use Distribute by default (so you don’t have to remember to use --distribute).


  • Include pip 0.6.1


  • Fix pip installation on Windows
  • Fix use of stand-alone (and boot scripts)
  • Exclude ~/.local (user site-packages) from environments when using --no-site-packages


  • Include pip 0.6


  • Updated setuptools to 0.6c11
  • Added the –distribute option
  • Fixed packaging problem of support-files


  • Virtualenv now copies the actual embedded Python binary on Mac OS X to fix a hang on Snow Leopard (10.6).
  • Fail more gracefully on Windows when win32api is not installed.
  • Fix site-packages taking precedent over Jython’s __classpath__ and also specially handle the new __pyclasspath__ entry in sys.path.
  • Now copies Jython’s registry file to the virtualenv if it exists.
  • Better find libraries when compiling extensions on Windows.
  • Create Scripts\pythonw.exe on Windows.
  • Added support for the Debian/Ubuntu /usr/lib/pythonX.Y/dist-packages directory.
  • Set distutils.sysconfig.get_config_vars()['LIBDIR'] (based on sys.real_prefix) which is reported to help building on Windows.
  • Make deactivate work on ksh
  • Fixes for --python: make it work with --relocatable and the symlink created to the exact Python version.


  • Use Windows newlines in activate.bat, which has been reported to help when using non-ASCII directory names.
  • Fixed compatibility with Jython 2.5b1.
  • Added a function virtualenv.install_python for more fine-grained access to what virtualenv.create_environment does.
  • Fix a problem with Windows and paths that contain spaces.
  • If /path/to/env/.pydistutils.cfg exists (or /path/to/env/pydistutils.cfg on Windows systems) then ignore ~/.pydistutils.cfg and use that other file instead.
  • Fix ` a problem <>`_ picking up some .so libraries in /usr/local.


  • Remove the [install] prefix = ... setting from the virtualenv distutils.cfg – this has been causing problems for a lot of people, in rather obscure ways.
  • If you use a boot script it will attempt to import virtualenv and find a pre-downloaded Setuptools egg using that.
  • Added platform-specific paths, like /usr/lib/pythonX.Y/plat-linux2


  • Real Python 2.6 compatibility. Backported the Python 2.6 updates to, including user directories (this means older versions of Python will support user directories, whether intended or not).
  • Always set [install] prefix in distutils.cfg – previously on some platforms where a system-wide distutils.cfg was present with a prefix setting, packages would be installed globally (usually in /usr/local/lib/pythonX.Y/site-packages).
  • Sometimes Cygwin seems to leave .exe off sys.executable; a workaround is added.
  • Fix --python option.
  • Fixed handling of Jython environments that use a jython-complete.jar.


  • Update to Setuptools 0.6c9
  • Added an option virtualenv --relocatable EXISTING_ENV, which will make an existing environment “relocatable” – the paths will not be absolute in scripts, .egg-info and .pth files. This may assist in building environments that can be moved and copied. You have to run this after any new packages installed.
  • Added bin/, a file you can use like execfile("path_to/", dict(__file__="path_to/")) – this will activate the environment in place, similar to what the mod_wsgi example does.
  • For Mac framework builds of Python, the site-packages directory /Library/Python/X.Y/site-packages is added to sys.path, from Andrea Rech.
  • Some platform-specific modules in Macs are added to the path now (plat-darwin/, plat-mac/, plat-mac/lib-scriptpackages), from Andrea Rech.
  • Fixed a small Bashism in the bin/activate shell script.
  • Added __future__ to the list of required modules, for Python 2.3. You’ll still need to backport your own subprocess module.
  • Fixed the __classpath__ entry in Jython’s sys.path taking precedent over virtualenv’s libs.


  • Added a --python option to select the Python interpreter.
  • Add warnings to the modules copied over, for Python 2.6 support.
  • Add sets to the module copied over for Python 2.3 (though Python 2.3 still probably doesn’t work).


  • Added support for Jython 2.5.


  • Added support for Python 2.6.
  • Fix a problem with missing DLLs/zlib.pyd on Windows. Create
  • bin/python (or bin/python.exe) even when you run virtualenv with an interpreter named, e.g., python2.4
  • Fix MacPorts Python
  • Added –unzip-setuptools option
  • Update to Setuptools 0.6c8
  • If the current directory is not writable, run in /tmp
  • Copy or symlink over the include directory so that packages will more consistently compile.


  • Fix build on systems that use /usr/lib64, distinct from /usr/lib (specifically CentOS x64).
  • Fixed bug in --clear.
  • Fixed typos in deactivate.bat.
  • Preserve $PYTHONPATH when calling subprocesses.


  • Fix include dir copying on Windows (makes compiling possible).
  • Include the main lib-tk in the path.
  • Patch distutils.sysconfig: get_python_inc and get_python_lib to point to the global locations.
  • Install distutils.cfg before Setuptools, so that system customizations of distutils.cfg won’t effect the installation.
  • Add bin/pythonX.Y to the virtualenv (in addition to bin/python).
  • Fixed an issue with Mac Framework Python builds, and absolute paths (from Ronald Oussoren).


  • Improve ability to create a virtualenv from inside a virtualenv.
  • Fix a little bug in bin/activate.
  • Actually get distutils.cfg to work reliably.


  • Added lib-dynload and config to things that need to be copied over in an environment.
  • Copy over or symlink the include directory, so that you can build packages that need the C headers.
  • Include a distutils package, so you can locally update distutils.cfg (in lib/pythonX.Y/distutils/distutils.cfg).
  • Better avoid downloading Setuptools, and hitting PyPI on environment creation.
  • Fix a problem creating a lib64/ directory.
  • Should work on MacOSX Framework builds (the default Python installations on Mac). Thanks to Ronald Oussoren.


  • Windows installs would sometimes give errors about sys.prefix that were inaccurate.
  • Slightly prettier output.


  • Added support for Windows.


  • Give a better warning if you are on an unsupported platform (Mac Framework Pythons, and Windows).
  • Give error about running while inside a workingenv.
  • Give better error message about Python 2.3.


Fixed packaging of the library.


Initial release. Everything is changed and new!