[Python-Dev] Re: Restrict the type of __slots__

18.03.22 11:29, Serhiy Storchaka пише:

It will break some code (there are 2 occurrences in the stdlib an 1 in scripts), but that code can be easily fixed.

Actually it will break more code, because initializing __slots__ with a list is pretty common. Maybe restrict it to tuple or list? But having an immutable __slots__ may be more reliable.