I am trying to get a PEP together for this. Does anyone have any thoughts 
on how to handle comparison between unicode strings in a locale aware 
situation?

Should __lt__ and __gt__ be specified as ignoring locale? In which case do 
we need to add a new method for doing locale aware comparisons?

Should locale be a property of the string, an argument passed to 
upper/lower/isupper/islower/swapcase/capitalize/sort or global state 
(locale module...)?

Should doing a locale aware comparison of two strings with different 
locales throw an exception?

Should locales be represented as objects or just a string like "en_GB"?