On Tue, Feb 11, 2014 at 12:13 PM, Travis Griggs <travisgri...@gmail.com> wrote: > So here’s my basic question. Is there anyway to programatically query that > information in python code? > > inspect.signature(datetime.datetime.now) > > just gives a ValueError. inspect must only be good for the python code that I > write, in python. Is there another way to dig out what the interpreter knows > there?
Fixing that issue is in the works. Argument Clinic[1][2] has been added for Python 3.4 which, once all C functions have been converted, will provide signature information for all builtins (functions written in C). If you try out the Python 3.4 RC1[3], you can try inspect.signature(datetime.datetime.now) again and get the information you expect: that's one of the (unfortunately relatively few) builtins that is already converted. Aside from the Argument Clinic effort, builtin functions are pretty much black boxes to Python--hence why we're trying to fix it! -- Zach [1] http://docs.python.org/3.4/howto/clinic.html [2] http://hg.python.org/cpython/file/default/Tools/clinic/clinic.py [3] http://python.org/download/releases/3.4.0/ -- https://mail.python.org/mailman/listinfo/python-list
