Guido van Rossum writes:
But what platform-specific directory should packages be installed into?
Ah, so then you should never attempt to share site-packages between different Python installations. If you want a directory of common Python code that's used by several different Python binaries, I guess you should hack sitecustomize.py to modify sys.path accordingly. One for GPW's notes on administering a Python installation...
I think this argues for changes in the Distutils -- right now an installation like this is really hard.