[Python-3000] buildbots

["Martin v. Löwis"]

> I suggest to apply this patch, which sets an environment variable in the
> Tools\buildbot\test.bat script, detects the Windows debug build, and calls
> SetErrorMode(7) as David suggested:

Sounds fine with me - although I would leave out the test for debug
build, and just check the environment variable.

Are you saying that calling SetErrorMode also makes the VC _ASSERT
message boxes go away?

Regards,
Martin