[Python-Dev] PEP 297: Support for System Upgrades

[Anthony Baxter]

>>> Guido van Rossum wrote
> > My suggestion is that the Python micro-release number be included in
> > the path to system-packages.  IOW, system-packages must exactly match
> > the Python version number, not just the maj.min number.

+1

> Excellent point.
> Or a micro-release should clear out the system-packages directory.

-1. 

That's just a bit too sudden and nasty. If this is the way to go, make
a subdirectory of system-packages/site-upgrades and move the old files 
there (and warn the installer that they've been moved)

Anthony