Mark Dickinson <dicki...@gmail.com> added the comment:
For completeness and to save people going to the NumPy tracker, here's an example of the problem: Python 3.8.1 (default, Jan 5 2020, 21:32:35) [Clang 10.0.1 (clang-1001.0.46.4)] on darwin Type "help", "copyright", "credits" or "license" for more information. >>> import fractions, numpy >>> f = fractions.Fraction(numpy.int64(1), 2) >>> not f Traceback (most recent call last): File "<stdin>", line 1, in <module> TypeError: __bool__ should return bool, returned numpy.bool_ ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue39274> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com