Chris Angelico schrieb am 26.09.2014 um 10:42: > On Fri, Sep 26, 2014 at 5:47 PM, Wolfgang Maier wrote: >> is there any reliable and inexpensive way to inspect a callable from running >> Python code to learn whether it is implemented in Python or C before calling >> into it ? > > I'm not sure you can say for absolute certain, but the presence of a > __code__ attribute is strongly suggestive that there's Python code > behind the function. That might be good enough for your purposes.
Cython implemented native functions have a "__code__" attribute, too. Their current "__code__.co_code" attribute is empty (no bytecode), but I wouldn't rely on that for all times either. Stefan -- https://mail.python.org/mailman/listinfo/python-list
