On 2021-06-22 5:23 p.m., Chris Angelico wrote: > On Wed, Jun 23, 2021 at 6:13 AM Soni L. <fakedme...@gmail.com> wrote: > > Think about it like this, extension methods give you the ability to make > > imported functions that look like this: > > > > foo(bar, baz) > > > > look like this instead: > > > > bar.foo(baz) > > > > That's all there is to them. They're just a lie to change how you > > read/write the code. Some languages have an whole operator that has a > > similar function, where something like bar->foo(baz) is sugar for > > foo(bar, baz). The OP doesn't specify any particular mechanism for > > extension methods, so e.g. making the dot operator be implemented by a > > local function in the module, which delegates to the current attribute > > lookup mechanism by default, would be perfectly acceptable. It's like > > deprecating the existing dot operator and introducing a completely > > different one that has nothing to do with attribute lookup! > > uh... I'm lost. Are you saying that that's a good thing? You *want* to > replace the existing dot operator with one that has nothing to do with > attribute lookup?? I don't get it.
Sure! As long as the new one can call getattr! Let's say the new dot operator looks like this: # file1.py def __dot__(left, right): print(left) print(right) ... foo = [] foo.bar Now, this would actually print the list [] and the string "bar". Then you can just use getattr to get attribute lookup behaviour out of it! def __dot__(left, right): return getattr(left, right) foo = [] foo.bar It would have local scope, similar to uh... locals. Y'know how locals are just sugar for locals()['foo'] and stuff? Yeah. > > 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/XDY3VAYX3FXJI7ZVT3AYAFA7PGQMBWAA/ > Code of Conduct: http://python.org/psf/codeofconduct/ _______________________________________________ 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/RGLMGLHAHLJVN3G5WEQSEKURUY7OP2UD/ Code of Conduct: http://python.org/psf/codeofconduct/
