Neil Girdhar added the comment: >From your comment:
>>> MyDerivedDynamic = new_class("MyDerivedDynamic", (MyClass,), >>> dict(metaclass=metaclass_callable)) Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/usr/lib64/python3.5/types.py", line 57, in new_class return meta(name, bases, ns, **kwds) File "<stdin>", line 2, in metaclass_callable TypeError: metaclass conflict: the metaclass of a derived class must be a (non-strict) subclass of the metaclasses of all its bases This is in the wrong place. It should be tripping the exception you defined in Lib/types.py. (It will do that if you replace metaclass_callable with OtherMetaclass.) ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue28437> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com