Akos Kiss <akosthek...@gmail.com> added the comment:
I couldn't find any discussion in the language reference about fundamental differences between calls to built-in functions and user-defined functions. (I tried to read Sections 6.3.4. "Calls" and 8.6. "Function definitions" carefully.) Until now I had the impression that built-in and user-defined functions should be as similar as possible. BTW, a user-defined function can also implement support for unused/excess keyword arguments (or arguments used on-demand): it only has to add **kwargs at the end of its signature. And that's exactly how the documentation specifies the signature of format: str.format(*args, **kwargs). That API documentation signals (to me at least) that this function should be called just like any other function that has a (*args, **kwargs) signature, be it built-in of user-defined. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue39694> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
