easy_install crash with KeyError

[Saverio Proto]

There's a problem in setuptools 24.0.0 (released today).

You can reproduce it just running on the shell easy_install:

# easy_install
Traceback (most recent call last):
  File "/usr/local/bin/easy_install", line 7, in <module>
    from setuptools.command.easy_install import main
  File "/usr/local/lib/python2.7/dist-packages/setuptools/__init__.py", line 14, in <module>
    from setuptools.extension import Extension
  File "/usr/local/lib/python2.7/dist-packages/setuptools/extension.py", line 11, in <module>
    from . import msvc
  File "/usr/local/lib/python2.7/dist-packages/setuptools/msvc.py", line 244, in <module>
    class PlatformInfo:
  File "/usr/local/lib/python2.7/dist-packages/setuptools/msvc.py", line 253, in PlatformInfo
    current_cpu = safe_env['processor_architecture'].lower()
  File "/usr/lib/python2.7/UserDict.py", line 23, in __getitem__
    raise KeyError(key)
KeyError: 'processor_architecture'

[Andreas Jaeger (jaegerandi)]

Fixed in 24.0.1