Message 174948 - Python tracker

> If NONASCII is None I suggest the followed fallback code

I prefer to not "brute force" Unicode because it would slow down any test, even tests not using FS_NONASCII. I wrote attached brute.py script to compute an exhaustive list of non-ASCII characters encodable to "any" locale encoding. My locale encoding list is not complete, but it should be enough for our purpose. The list can be completed later.