Pip

===

- Track which ``build/`` directories pip creates, never remove directories
it doesn't create. From Hugo Lopes Tavares.
- pip now accepts file:// index URLs. Thanks Dave Abrahams.
- Various cleanup to make test-running more consistent and less fragile.
Thanks Dave Abrahams.
- Real Windows support (with passing tests). Thanks Dave Abrahams.
- ``pip-2.7`` etc. scripts are created (Python-version specific scripts)
- ``contrib/build-standalone`` script creates a runnable ``.zip`` form of
pip, from Jannis Leidel
- Editable git repos are updated when reinstalled
- Fix problem with ``--editable`` when multiple ``.egg-info/`` directories
are found.
- A number of VCS-related fixes for ``pip freeze``, from Hugo Lopes Tavares.
- Significant test framework changes, from Hugo Lopes Tavares.

=====

- Set zip_safe=False to avoid problems some people are encountering where
pip is installed as a zip file.

=====

- Fixed opening of logfile with no directory name. Thanks Alexandre Conrad.
- Temporary files are consistently cleaned up, especially after
installing bundles, also from Alex Conrad.
- Tests now require at least ScriptTest 1.0.3.

===

- Fixed uninstallation on Windows
- Added ``pip search`` command.
- Tab-complete names of installed distributions for ``pip uninstall``.
- Support tab-completion when there is a global-option before the
subcommand.
- Install header files in standard (scheme-default) location when installing
outside a virtualenv. Install them to a slightly more consistent
non-standard location inside a virtualenv (since the standard location is
a non-writable symlink to the global location).
- pip now logs to a central location by default (instead of creating
``pip-log.txt`` all over the place) and constantly overwrites the
file in question. On Unix and macOS this is ``'$HOME/.pip/pip.log'``
and on Windows it's ``'%HOME%\\pip\\pip.log'``. You are still able to
override this location with the ``$PIP_LOG_FILE`` environment variable.
For a complete (appended) logfile use the separate ``'--log'`` command line
option.
- Fixed an issue with Git that left an editable package as a checkout of a
remote branch, even if the default behaviour would have been fine, too.
- Fixed installing from a Git tag with older versions of Git.
- Expand "~" in logfile and download cache paths.
- Speed up installing from Mercurial repositories by cloning without
updating the working copy multiple times.
- Fixed installing directly from directories (e.g.
``pip install path/to/dir/``).
- Fixed installing editable packages with ``svn+ssh`` URLs.
- Don't print unwanted debug information when running the freeze command.
- Create log file directory automatically. Thanks Alexandre Conrad.
- Make test suite easier to run successfully. Thanks Dave Abrahams.
- Fixed "pip install ." and "pip install .."; better error for directory
without setup.py. Thanks Alexandre Conrad.
- Support Debian/Ubuntu "dist-packages" in zip command. Thanks duckx.
- Fix relative --src folder. Thanks Simon Cross.
- Handle missing VCS with an error message. Thanks Alexandre Conrad.
- Added --no-download option to install; pairs with --no-install to separate
download and installation into two steps. Thanks Simon Cross.
- Fix uninstalling from requirements file containing -f, -i, or
--extra-index-url.
- Leftover build directories are now removed. Thanks Alexandre Conrad.

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- Fixed import error on Windows with regard to the backwards compatibility
package

=====

- Fixed uninstall when /tmp is on a different filesystem.
- Fixed uninstallation of distributions with namespace packages.