Upstream changes:
1.2.1 (2012-09-06)
Fixed a regression introduced in 1.2 about raising an exception when not finding any files to uninstall in the current environment. Thanks for the fix, Marcus Smith.
1.2 (2012-09-01)
Dropped support for Python 2.4 The minimum supported Python version is now Python 2.5.
Fixed issue #605 - pypi mirror support broken on some DNS responses. Thanks philwhin.
Fixed issue #355 - pip uninstall removes files it didn't install. Thanks pjdelport.
Fixed issues #493, #494, #440, and #573 related to improving support for the user installation scheme. Thanks Marcus Smith.
Write failure log to temp file if default location is not writable. Thanks andreigc.
Pull in submodules for git editable checkouts. Fixes#289 and #421. Thanks Hsiaoming Yang and Markus Hametner.
Use a temporary directory as the default build location outside of a virtualenv. Fixes issues #339 and #381. Thanks TC01.
Added support for specifying extras with local editables. Thanks Nick Stenning.
Added --egg flag to request egg-style rather than flat installation. Refs issue #3. Thanks Kamal Bin Mustafa.
Fixed issue #510 - prevent e.g. gmpy2-2.0.tar.gz from matching a request to pip install gmpy; sdist filename must begin with full project name followed by a dash. Thanks casevh for the report.
Fixed issue #504 - allow package URLS to have querystrings. Thanks W. Trevor King.
Fixed issue #58 - pip freeze now falls back to non-editable format rather than blowing up if it can't determine the origin repository of an editable. Thanks Rory McCann.
Added a __main__.py file to enable python -m pip on Python versions that support it. Thanks Alexey Luchko.
Fixed issue #487 - upgrade from VCS url of project that does exist on index. Thanks Andrew Knapp for the report.
Fixed issue #486 - fix upgrade from VCS url of project with no distribution on index. Thanks Andrew Knapp for the report.
Fixed issue #427 - clearer error message on a malformed VCS url. Thanks Thomas Fenzl.
Added support for using any of the built in guaranteed algorithms in hashlib as a checksum hash.
Fixed issue #321 - Raise an exception if current working directory can't be found or accessed.
Fixed issue #82 - Removed special casing of the user directory and use the Python default instead.
Fixed#436 - Only warn about version conflicts if there is actually one. This re-enables using ==dev in requirements files.
Moved tests to be run on Travis CI: http://travis-ci.org/pypa/pip
Added a better help formatter.
Based on PR 46531 by Wen Heping.
* convert to use python/egg.mk.
1.1 (2012-02-16)
----------------
* Fixed issue #326 - don't crash when a package's setup.py emits UTF-8 and
then fails. Thanks Marc Abramowitz.
* Added ``--target`` option for installing directly to arbitrary directory.
Thanks Stavros Korokithakis.
* Added support for authentication with Subversion repositories. Thanks
Qiangning Hong.
* Fixed issue #315 - ``--download`` now downloads dependencies as well.
Thanks Qiangning Hong.
* Errors from subprocesses will display the current working directory.
Thanks Antti Kaihola.
* Fixed issue #369 - compatibility with Subversion 1.7. Thanks Qiangning
Hong. Note that setuptools remains incompatible with Subversion 1.7; to
get the benefits of pip's support you must use Distribute rather than
setuptools.
* Fixed issue #57 - ignore py2app-generated OS X mpkg zip files in finder.
Thanks Rene Dudfield.
* Fixed issue #182 - log to ~/Library/Logs/ by default on OS X framework
installs. Thanks Dan Callahan for report and patch.
* Fixed issue #310 - understand version tags without minor version ("py3")
in sdist filenames. Thanks Stuart Andrews for report and Olivier Girardot for
patch.
* Fixed issue #7 - Pip now supports optionally installing setuptools
"extras" dependencies; e.g. "pip install Paste[openid]". Thanks Matt Maker
and Olivier Girardot.
* Fixed issue #391 - freeze no longer borks on requirements files with
--index-url or --find-links. Thanks Herbert Pfennig.
* Fixed issue #288 - handle symlinks properly. Thanks lebedov for the patch.
* Fixed issue #49 - pip install -U no longer reinstalls the same versions of
packages. Thanks iguananaut for the pull request.
* Removed ``-E`` option and ``PIP_RESPECT_VIRTUALENV``; both use a
restart-in-venv mechanism that's broken, and neither one is useful since
every virtualenv now has pip inside it.
* Fixed issue #366 - pip throws IndexError when it calls `scraped_rel_links`
* Fixed issue #22 - pip search should set and return a userful shell status code
* Fixed issue #351 and #365 - added global ``--exists-action`` command line
option to easier script file exists conflicts, e.g. from editable
requirements from VCS that have a changed repo URL.
techniques for finding packages, so packages that were made
easy_installable should be pip-installable as well.
pip is meant to improve on easy_install. Some of the improvements:
* All packages are downloaded before installation.
Partially-completed installation doesn't occur as a result.
* Care is taken to present useful output on the console.
* The reasons for actions are kept track of. For instance, if
a package is being installed, pip keeps track of why that package
was required.
* Error messages should be useful.
* The code is relatively concise and cohesive, making it easier
to use programmatically.
* Packages don't have to be installed as egg archives, they can
be installed flat (while keeping the egg metadata).
* Native support for other version control systems (Git, Mercurial
and Bazaar)
* Uninstallation of packages.
* Simple to define fixed sets of requirements and reliably
reproduce a set of packages.