On Thu, May 27, 2021 at 01:02:15PM -0700, Brendan Barnwell wrote: > You can already do that: > > def merge_shortest(things): > len=len > ... > > Yes, it does require a single global lookup on each function call, > but if that's really a bottleneck for you I don't think there's much > hope. > :-)
It's not so much the single global lookup on each function call as the fact that you can't do that at all :-( UnboundLocalError: local variable 'len' referenced before assignment [...] > Sorry, I was a bit vague there. What I was envisioning is that you > would specify len as a constant at the GLOBAL level, meaning that all > functions in the module could always assume it referred to the same > thing. (It's true this might require something different from what was > proposed in the other thread about constants.) Getting actual constants that the interpreter can trust will not change is likely to be a much bigger language change than taking advantage of existing mechanisms that already exist in functions, with perhaps a little extra work, to get per function local static storage. But even if we did have actual constants, how does that help get static *variables*, you know, things that aren't constant but can vary? -- Steve _______________________________________________ Python-ideas mailing list -- python-ideas@python.org To unsubscribe send an email to python-ideas-le...@python.org https://mail.python.org/mailman3/lists/python-ideas.python.org/ Message archived at https://mail.python.org/archives/list/python-ideas@python.org/message/IDDOIZTBSW3LSMGOLXCUQCKIQ2R6J42H/ Code of Conduct: http://python.org/psf/codeofconduct/
