[Python-Dev] Preventing 1.5 extensions crashing under 1.6/2.0 Python

[Mark Hammond]

> Ignoring most that's been said in this thread, would it be possible
> for the installer to detect the presence of python15.dll in the system
> directory and offer to delete it?

This should only be done if the installer can be very sure that the user
_tried_ to uninstall 1.5, but this DLL remains.  This could be done in a
number of ways, none of which are foolproof (eg, you could check for a 1.5
registry key, but of the user has added their own PythonPath entries, for
example, the installer wont remove them (as it didnt add them) - meaning
you end up with a partial 1.5 registry tree remaining.  A big of
experimentation could provide something that works in a majority of cases.

IMO, it is very important 1.5 and x.x can coexist on the same machine;
especially in the light of this thread, where it should be obvious that
many extension wont be available for post 1.5 releases until quite some
time after that core release hits the street...

Mark.
\