Segfault when porting to python 3.10

[AlexGhiti]

Hi,

libapache2-mod-python failed some tests in Ubuntu regression tests, so we added a few patches to port it to python 3.10 (you can find those pretty straightforward patches here [1]). The problem is that now it segfaults on an address returned by PyArg_ParseTuple, and this is where we are struggling to understand what's wrong (even though one of the patch touches this area). Everything is explained in detail at [1], could you give us a hand?

Thanks,

Alex

[1] https://bugs.launchpad.net/ubuntu/+source/libapache2-mod-python/+bug/1960088

[grisha]

xnox (in the discussion on your link) is on the right track - you should be using master, we don't do mod_python releases any longer (it syas so on the modpython.org site). If you make a PR for this patch that'd be great!

[wom-bat]

This could be related to #100