Just thinking aloud here but when you say "positional" parameters you mean normal parameters and not positional only parameters as introduced in 3.8 right?
And how would those fit into this picture? > On 18 Oct 2019, at 15:31, Gus Wiedey <guswie...@gmail.com> wrote: > > > I was recently playing around with decorators and experimenting with defining > a function's signature dynamically at runtime, and came across the > builtins.function class constructor (more easily accessible through the > types.FunctionType alias). I quickly realized, however, that even though the > constructor has a parameter (argdefs) that is used to specify default values > for the resulting function's positional arguments, there is no corresponding > parameter for keyword-only argument defaults. This seems like a glaring > omission, especially considering the fact that argdefs takes a tuple that is > directly assigned (unmodified) to the __defaults__ attribute. I can't find > any obvious reason why there shouldn't be a similar "kwdefs" parameter that > takes a dict and assigns it to __kwdefaults__. I downloaded the cpython repo, > made this change myself as proof-of-concept, and compiled it, and it appears > to work fine. This brings me to two questions: > > 1. Is there a reason for this disparity that I'm not seeing (e.g. breaking > some other feature), or is it just an oversight? > 2. If I wanted to submit this as an actual language change, would I need to > write a full PEP or is it small enough that it could go to the issue tracker? > (Note that the documentation says this constructor can vary between > implementations, so the change would only apply to cpython if that matters.) > > Also, if this is the wrong place to ask this, please feel free to set me > straight; I'm completely new to this whole process, so any help on where to > start would be appreciated. > _______________________________________________ > 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/3ETG4HAKR2WQWAKAFCHU4UMC5X37OHKZ/ > 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/4NZAPY4WUB7IK5WXGYDIDHBZZGRQ42Q7/ Code of Conduct: http://python.org/psf/codeofconduct/
