Inada Naoki <songofaca...@gmail.com> added the comment:
It is documented, if you read it carefully. "Network objects are hashable, so they can be used as keys in dictionaries." https://docs.python.org/3/library/ipaddress.html#network-objects """ An object is hashable if it has a hash value which never changes during its lifetime (it needs a __hash__() method), and can be compared to other objects (it needs an __eq__() method). Hashable objects which compare equal must have the same hash value. """ https://docs.python.org/3/glossary.html#term-hashable Make it mutable is not an option. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue38784> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com