Eryk Sun <eryk...@gmail.com> added the comment:
Note that the underlying stat call supports file descriptors, which are non-negative integers. This is a supported and tested capability for genericpath.exists (see GenericTest.test_exists_fd in Lib/test/test_genericpath.py). False and True are integers with the values 0 and 1: >>> issubclass(bool, int) True >>> False + 0 0 >>> True + 0 1 That can be useful, but there may be cases where we don't want to conflate bools and integers. IMO, a bool should not be supported as a file descriptor. It's likely a bug that should be caught early instead of meaninglessly propagated. A high-level solution would check for bool instances in genericpath.exists. A low-level solution, to make this policy consistent in general, would be to modify _fd_converter in Modules/posixmodule.c to disallow bool instances. ---------- nosy: +eryksun _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue38445> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com