Humblesetuptools

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* Added "upload" support for egg and source distributions, including a bug
fix for "upload" and a temporary workaround for lack of .egg support in
PyPI.

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* Beefed up the "sdist" command so that if you don't have a MANIFEST.in, it
will include all files under revision control (CVS or Subversion) in the
current directory, and it will regenerate the list every time you create a
source distribution, not just when you tell it to. This should make the
default "do what you mean" more often than the distutils' default behavior
did, while still retaining the old behavior in the presence of MANIFEST.in.

* Fixed the "develop" command always updating .pth files, even if you
specified ``-n`` or ``--dry-run``.

* Slightly changed the format of the generated version when you use
``--tag-build`` on the "egg_info" command, so that you can make tagged
revisions compare *lower* than the version specified in setup.py (e.g. by
using ``--tag-build=dev``).

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* Added ``develop`` command to ``setuptools``-based packages. This command
installs an ``.egg-link`` pointing to the package's source directory, and
script wrappers that ``execfile()`` the source versions of the package's
scripts. This lets you put your development checkout(s) on sys.path without
having to actually install them. (To uninstall the link, use
use ``setup.py develop --uninstall``.)

* Added ``egg_info`` command to ``setuptools``-based packages. This command
just creates or updates the "projectname.egg-info" directory, without
building an egg. (It's used by the ``bdist_egg``, ``test``, and ``develop``
commands.)

* Enhanced the ``test`` command so that it doesn't install the package, but
instead builds any C extensions in-place, updates the ``.egg-info``
metadata, adds the source directory to ``sys.path``, and runs the tests
directly on the source. This avoids an "unmanaged" installation of the
package to ``site-packages`` or elsewhere.

* Made ``easy_install`` a standard ``setuptools`` command, moving it from
the ``easy_install`` module to ``setuptools.command.easy_install``. Note
that if you were importing or extending it, you must now change your imports
accordingly. ``easy_install.py`` is still installed as a script, but not as
a module.

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* Setup scripts using setuptools can now list their dependencies directly in
the setup.py file, without having to manually create a ``depends.txt`` file.
The ``install_requires`` and ``extras_require`` arguments to ``setup()``
are used to create a dependencies file automatically. If you are manually
creating ``depends.txt`` right now, please switch to using these setup
arguments as soon as practical, because ``depends.txt`` support will be
removed in the 0.6 release cycle. For documentation on the new arguments,
see the ``setuptools.dist.Distribution`` class.

* Setup scripts using setuptools now always install using ``easy_install``
internally, for ease of uninstallation and upgrading.

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* Added support for "self-installation" bootstrapping. Packages can now
include ``ez_setup.py`` in their source distribution, and add the following
to their ``setup.py``, in order to automatically bootstrap installation of
setuptools as part of their setup process::

from ez_setup import use_setuptools
use_setuptools()

from setuptools import setup
etc...

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* Added ``ez_setup.py`` installer/bootstrap script to make initial setuptools
installation easier, and to allow distributions using setuptools to avoid
having to include setuptools in their source distribution.

* All downloads are now managed by the ``PackageIndex`` class (which is now
subclassable and replaceable), so that embedders can more easily override
download logic, give download progress reports, etc. The class has also
been moved to the new ``setuptools.package_index`` module.

* The ``Installer`` class no longer handles downloading, manages a temporary
directory, or tracks the ``zip_ok`` option. Downloading is now handled
by ``PackageIndex``, and ``Installer`` has become an ``easy_install``
command class based on ``setuptools.Command``.

* There is a new ``setuptools.sandbox.run_setup()`` API to invoke a setup
script in a directory sandbox, and a new ``setuptools.archive_util`` module
with an ``unpack_archive()`` API. These were split out of EasyInstall to
allow reuse by other tools and applications.

* ``setuptools.Command`` now supports reinitializing commands using keyword
arguments to set/reset options. Also, ``Command`` subclasses can now set
their ``command_consumes_arguments`` attribute to ``True`` in order to
receive an ``args`` option containing the rest of the command line.

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