Ken Jin <kenjin4...@gmail.com> added the comment:
Sorry, I don't think this will be fixed as it is intentional. types.GenericAlias (the type of list[int] or dict[str, str]) does almost 0 checking for two reasons IIUC: - Types with wrong number of parameters will usually be caught by your IDE/type checker. - Checking would add complexity and slow down runtime performance. The current implementation of GenericAlias in C is intentionally simple. We can add a note in the docs noting that too many type parameters won't raise a TypeError. It would probably be here https://docs.python.org/3/library/stdtypes.html#generic-alias-type BTW, I adjusted the issue's affected versions because this was introduced only in 3.9. ---------- nosy: +gvanrossum, kj versions: +Python 3.10, Python 3.11 -Python 3.7, Python 3.8 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue44578> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
