Well, thank you all ! I still feel it could be good for Python to have some kind of symbols built in, and I will try to expose that to the python-dev list, to see their reaction.
But in the different solutions proposed, the one I prefer is probably the definitions of contants in a class to group them. Simple and organized, I like it. Thanks, Pierre -- http://mail.python.org/mailman/listinfo/python-list
