On Wed, Jun 15, 2016, at 15:03, Ethan Furman wrote: > [1] https://docs.python.org/3/library/functions.html#locals > Yes, returning the class namespace is a language gaurantee.
How do you get a guarantee from that text? I don't see any definition asserting that the "current local symbol table" is the class namespace (more specifically, the object returned by (metaclass).__prepare__, which will be copied into [not used as, for normal types] (class).__dict__). We *know* that "representing the current local symbol table" can and often does mean "copied from the local symbol table which is not a in fact a dictionary" rather than "being the local symbol table which is a real dictionary object" (that's *why*, after all, updating locals() doesn't work in the general case), nor does it mention any exemption to the warning about updating it. If there's a guarantee of this, it's somewhere else. -- https://mail.python.org/mailman/listinfo/python-list
