At 11:21 AM 10/5/2009 -0700, Brett Cannon wrote:

I have to admit I find it really disheartening that we are letting an unmaintained project dictate how we fix a bug.

Setuptools was not the only project broken by this change. See: http://bugs.python.org/issue7020#msg93355 Apparently, I'm not the only person who read the get_ext_filename() docstring that way, and subclassed build_ext in a way that broke it. (In this case, it was pywin32.) IMO, the fact that it broke Pywin32 in 2.6.3rc1 should have been considered evidence that the change was not suitable for a bugfix release.