2.6 should be the new minimum version. But we have the unicode bug with all releases from 2.5 upto 2.7.1. This means 2.7.2 is the release which is strongly recommended I think.
...as mentioned fedora uses newer python but "just" 2.7.1... I think you are right and the day we can go officially to 2.7.2 will become a "delightful holiday", but meanwhile I think this is slightly more radical than useful. Even the toolserver still uses a patched 2.7.1 (but 2.7.1 still... ;)) In my environment the 2.7.1 seems to be the magic and only one important... :)
What I said before ;) Unfortunately we cannot fix other previous 2.7.2 releases regarding unicode bug which means that code is running on owners risk (and I don't take responsibility to it ;)
xqt