Warnings

Unicode support in Python, and in Python 3.0, is about the best you will find, including codecs classes. Unicode will still be a problem.
Expect programs to become less reliable as odd Unicode mangles display layouts.
Unicode support != Localization. You will still use gettext().
Add some test cases with odd language inputs.

Unicode support in Python, and in Python 3.0, is about the best you will find, including codecs classes. Unicode will still be a problem.