Stefan Behnel added the comment: >> inspect.isbuiltin() returns False > Are you absolutely sure about this?
Yes. The "inheritance" of Cython's function type from PyCFunction is a pure implementation detail of the object struct layout that is not otherwise visible in any way. Specifically, there is no base type. The only reason for the identical (start of the) struct layout is to allow reusing some of the normal PyCFunction C-API functions on it instead of having to copy them into Cython. Cython's functions are neither instances of PyFunction nor of PyCFunction. They implement the interface of PyFunction, though. > http://hg.python.org/cpython/rev/48c3c42e3e5c This change is redundant since BuiltinFunctionType (which isbuiltin() tests for) is already in _NonUserDefinedCallables, which is tested for right afterwards. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue17159> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com