Daniel Braniss <da...@cs.huji.ac.il>:

[...]


So what you need is support for a python module installed for two different
python versions at the same time, correct? And this (right now) is not
supported, I am afraid.

as I explained, probably not too well, the problem is in the install from
ports. the check for the installed  modules does not check, or
incorrectly checks for the desired version.

That's understood quite well, the (big) problem however are not the site-packages,
but other data installed e.g. under /usr/local/share, .../bin, .../wherever,
which currently does not necessarily take the python version into account.

x11-toolkits/py-gtk2 is a good example for such an issue. If you install it
for python2.7 , there are heaps of files, which would conflict/overwrite a
previous python3.2/3.3 installation and vice versa, making the port unusable for
all your python installations except one (in the worst case).

setting FORCE_PKG_REGISTER is a workaround, because it does not
do any deinstall.

It only is for ports, which keep everything in site-packages or are at least
python-version aware.

Cheers
Marcus

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