On Tue, Dec 15, 2020 at 8:49 PM Paul Sokolovsky <pmis...@gmail.com> wrote: > Right, and the question is what semantic (not implementational!) shift > happened in 3.7 (that's the point when it started to be compiled > differently).
Have you read the release notes? https://docs.python.org/3/whatsnew/3.7.html#optimizations Method calls are now up to 20% faster due to the bytecode changes which avoid creating bound method instances. (Contributed by Yury Selivanov and INADA Naoki in bpo-26110.) It is an *optimization*. There are NO semantic differences, other than the ones you're artificially creating in order to probe this. (I don't consider "the output of dis.dis()" to be a semantic difference.) Why do you keep bringing up irrelevant questions that involve order of operations? The opcode you're asking about is *just* an optimization for "look up this method, then immediately call it" that avoids the construction of a temporary bound method object. The parentheses are a COMPLETE red herring here. What is your point? ChrisA _______________________________________________ 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/FA34CSD4R3R77GRBUFMHCQE4KBO7GY3M/ Code of Conduct: http://python.org/psf/codeofconduct/
