Jack DeVries <jdevries3...@gmail.com> added the comment:
That is because pi, along with other constants in the math module are defined during module execution, not module creation: https://github.com/python/cpython/blob/62f1d2b3d7dda99598d053e10b785c463fdcf591/Modules/cmathmodule.c#L1257-L1262 Taking the example right here (https://docs.python.org/3/library/importlib.html#checking-if-a-module-can-be-imported) from the docs, you can see how they call exec_module() after module_from_spec. If you change your code to do that as well, you will find that pi is now defined: ======== from importlib import util mathmodule = util.find_spec("math") math1 = util.module_from_spec(mathmodule) mathmodule.loader.exec_module(math1) print(math1.pi) ======== ---------- nosy: +jack__d _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue44386> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
