On Wed, Dec 1, 2021 at 6:43 PM Abdulla Al Kathiri <alkathiri.abdu...@gmail.com> wrote: > > On 1 Dec 2021, at 10:16 AM, Chris Angelico <ros...@gmail.com> wrote: > > 3) If "yes" to question 1, would you use it for any/all of (a) mutable > > defaults, (b) referencing things that might have changed, (c) > > referencing other arguments, (d) something else? > I will definitely use it for default mutable collections like list, set, > dictionary etc. I will also use it to reference things that might have > changed. For example, when making callbacks to GUI push buttons, I find > myself at the start of the function/callback to be fetching the values from > other widgets so we can do something with them. Now those values can be > directly passed as late-bound defaults from their respective widgets (e.g., > def callback(self, text1 => self.line_edit.text()): …). > >
Very interesting. That doesn't normally seem like a function default - is the callback ever going to be passed two arguments (self and actual text) such that the default would be ignored? But, hey, if it makes sense in your code to make it a parameter, sure! > > 5) Do you know how to compile CPython from source, and would you be > > willing to try this out? Please? :) > I haven’t done it from source. I might try to learn how to do it in the next > weekend and give it a try. > > > I'd love to hear, also, from anyone's friends/family who know a bit of > > Python but haven't been involved in this discussion. If late-bound > > defaults "just make sense" to people, that would be highly > > informative. > I will show this to some of my coworkers who are python experts and I will > report back. Thank you! All feedback greatly appreciated. Building CPython from source can be done by following these instructions: https://devguide.python.org/setup/ Instead of creating your own clone from the pristine master copy, instead clone my repository at https://github.com/rosuav/cpython and checkout the pep-671 branch. That'll give you my existing reference implementation (it's pretty crummy but it mostly works). 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/7VOA7BVTV5UJ24HOPMKO4XK6HW73DH5H/ Code of Conduct: http://python.org/psf/codeofconduct/
