On 20.04.2020 19:43, Andrew Barnert via Python-ideas wrote: > On Apr 20, 2020, at 01:06, M.-A. Lemburg <[email protected]> wrote: >> >> The current version already strikes me as way too complex. >> It's by far the most complex piece of grammar we have in Python: >> >> funcdef: 'def' NAME parameters ['->' test] ':' [TYPE_COMMENT] >> func_body_suite > > But nobody’s proposing changing the function definition syntax here, only the > function call syntax. Which is a lot less hairy. It is still somewhat hairy, > but nowhere near as bad, so this argument doesn’t really apply.
True, I quoted the wrong part of the grammar for the argument, sorry. I meant this part: https://docs.python.org/3/reference/expressions.html#calls which is simpler, but not really much, since the devil is in the details. We already have shortcuts in the form of * and ** for function calls, both putting the unpacking on the calling side of the function, rather than inside the function where it would arguably be much cleaner to add. You're now proposing to add yet another shortcut to avoid having to translate local variables to possibly the same keyword arguments used by the function. But arguing that f(a=, b=, c=, d=) is any better than f(a=a, b=b, c=c, d=d) does not really solve anything. The problem is with the code design, not with the syntax. You'd be better off putting your variables combined into a context object or container and pass that around: f(context) In many cases, you can avoid passing around any of these variables, by simply using an object rather than a function oriented approach. The variables would then become object attributes, so calling f() becomes: task.f() and the method f would get it's context straight from the object attributes of task -- without any arguments to pass in. -- Marc-Andre Lemburg eGenix.com Professional Python Services directly from the Experts (#1, Apr 21 2020) >>> Python Projects, Coaching and Support ... https://www.egenix.com/ >>> Python Product Development ... https://consulting.egenix.com/ ________________________________________________________________________ ::: We implement business ideas - efficiently in both time and costs ::: eGenix.com Software, Skills and Services GmbH Pastor-Loeh-Str.48 D-40764 Langenfeld, Germany. CEO Dipl.-Math. Marc-Andre Lemburg Registered at Amtsgericht Duesseldorf: HRB 46611 https://www.egenix.com/company/contact/ https://www.malemburg.com/ _______________________________________________ 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/7SLOVPQWONDJG2DMQBAE62MMCBYK65U5/ Code of Conduct: http://python.org/psf/codeofconduct/
