[Distutils] Is a version number required in the setup script?

[Thomas Heller]

It has been reported by Riaan Booysen that executing
'python setup.py bdist_wininst' with a setup-script
not defining a version number dies with a traceback.
The reason is that distutils uses '???' as version number,
and xxx-???.win32.zip is an invalid filename on windows:

c:\util\zip.exe -rq C:\temp\test\build\bdist.win32\wininst\x-???.win32.zip .
zip error: Invalid argument

zip error: Could not create output file (C:/temp/test/build/bdist.win32/wininst/x-???.win32.zip)
creating 'C:\temp\test\build\bdist.win32\wininst\x-???.win32.zip' and adding '.' to it
Exception exceptions.AttributeError: "'ZipFile' instance has no attribute 'fp'" in <method ZipFile.__del__ of ZipFile instance at
00885B24> ignored
error: C:\temp\test\build\bdist.win32\wininst\x-???.win32.zip: Invalid argument

IMO this should be fixed so that either a check is done
for a version number - or - a version number of 0.0.0
should be used.

Thomas