On Fri, Sep 18, 2020 at 4:55 AM Alex Hall <[email protected]> wrote:
>
> On Thu, Sep 17, 2020 at 8:49 PM Chris Angelico <[email protected]> wrote:
>>
>> The only time you can safely mutate locals() is when you're at top
>> level and it's the same as globals().
>
>
> It's safe in class definitions, right? At least in CPython it seems to work.
> I've done that a few times, most recently to dynamically generate enum
> members.
>
Hmm. I'm not actually sure there, but my belief is that it still isn't
guaranteed - it just happens to work in current versions of CPython.
locals()
Return a dictionary containing the current scope's local variables.
NOTE: Whether or not updates to this dictionary will affect name lookups in
the local scope and vice-versa is *implementation dependent* and not
covered by any backwards compatibility guarantees.
ChrisA
_______________________________________________
Python-ideas mailing list -- [email protected]
To unsubscribe send an email to [email protected]
https://mail.python.org/mailman3/lists/python-ideas.python.org/
Message archived at
https://mail.python.org/archives/list/[email protected]/message/JWUVX47LFJTY6IZ4PPIKHJVJ5DY7YGLL/
Code of Conduct: http://python.org/psf/codeofconduct/