PyPI bdist_wininst upload failing

[Steven Bethard]

I just tried to upload new versions of the argparse module to PyPI, but 
it seems like I can no longer upload Windows installers:

   $ setup.py sdist bdist_wininst upload
   ...
   running upload
   Submitting dist\argparse-0.8.0.zip to http://www.python.org/pypi
   Server response (200): OK
   Submitting dist\argparse-0.8.0.win32.exe to http://www.python.org/pypi
   Upload failed (400): Bad Request

Anyone know what I'm doing wrong? (I've always been able to upload 
bdist_wininst packages to PyPI in the past.)

STeVe