replace illegal xml characters

[killkolor]

hi!

I am working with InDesign exported xml and parse it in a python
application. I learned here: http://boodebr.org/main/python/all-about-python-and-unicode
that there actually are sets of illegal unicode characters for xml
(and henceforth for every compliant xml parser). I already implemented
a regex solution to replace the characters in question, but I wonder
if there is a efficient and out-of-the-box solution somewhere out
there for this problem. does anybody know?

thanks!
gabriel