They don't. Python's "unicodedata" module updates with the minor version of Python. This is good, actually, because the meaning of a string operation should be

They don't. Python's "unicodedata" module updates with the minor version of Python. This is good, actually, because the meaning of a string operation should be consistent when run on the same version of Python. (If only this applied to the "default encoding". The default encoding should be UTF-8, not whatever you get by asking the user's likely-misconfigured locale. As it is, you can't rely on the default encoding if you want your code to work consistently.)