[Distutils] pypm binary package format

[Daniel Holth]

I was curious about the pypm binary package format. They are in the
.tar.gz format (but with .pypm extension). They contain two files:

info.json:

{u'author': u'Zope Foundation and Contributors',
 u'author_email': u'zope-dev at zope.org',
 u'description': '...',
 u'home_page': u'http://pypi.python.org/pypi/zope.interface',
 u'install_requires': {u'': [u'distribute'],
                       u'docs': [u'z3c.recipe.sphinxdoc'],
                       u'test': [u'zope.event']},
 u'keywords': None,
 u'license': u'ZPL 2.1',
 u'maintainer': None,
 u'maintainer_email': None,
 u'name': u'zope.interface',
 u'osarch': u'win32-x86',
 u'pkg_version': 1,
 u'pyver': u'2.7',
 u'summary': u'Interfaces for Python',
 u'version': u'3.8.0'}

data.tar.gz:

Lib/site-packages/zope.interface/... (including .pyd or .so)
Lib/site-packages/zope.interface-3.8.0-py27.egg-info/(normal egg-info stuff)

When installed, Lib/ is unpacked into %APPDATA%\Python\Python27\site-packages\