Setuptools

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* Issue 442: Use RawConfigParser for parsing .pypirc file.
Interpolated values are no longer honored in .pypirc files.

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* Issue 440: Prevent infinite recursion when a SandboxViolation
or other UnpickleableException occurs in a sandbox context
with setuptools hidden. Fixes regression introduced in Setuptools
12.0.

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* Deprecated ``egg_info.get_pkg_info_revision``.
* Issue 471: Don't rely on repr for an HTML attribute value in
package_index.
* Issue 419: Avoid errors in FileMetadata when the metadata directory
is broken.
* Issue 472: Remove deprecated use of 'U' in mode parameter
when opening files.

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* Issue 469: Refactored logic for Issue 419 fix to re-use metadata
loading from Provider.

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* Update dependency on certify.
* BB Pull Request 160: Improve detection of gui script in
``easy_install._adjust_header``.
* Made ``test.test_args`` a non-data property; alternate fix
for the issue reported in BB Pull Request 155.
* Issue 453: In ``ez_setup`` bootstrap module, unload all
``pkg_resources`` modules following download.
* BB Pull Request 158: Honor PEP-488 when excluding
files for namespace packages.
* Issue 419 and BB Pull Request 144: Add experimental support for
reading the version info from distutils-installed metadata rather
than using the version in the filename.

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* Issue 464: Correct regression in invocation of superclass on old-style
class on Python 2.