hmm, I'm unsure about how this should be done.. I guess such a test would belong in Lib/distutils/test_dist.py, but I'm uncertain about how it should be done, ie. should it be a test for doing 'bdist', 'bdist_rpm' and 'sdist' for each of the formats supported? I cannot seem to find any tests for the currently supported formats and such tests would introduce dependencies on the tools used to compress with these formats..