On 2018-03-31 21:12, Terry Reedy wrote:

I would be all for more of the builtins and stdlib being converted. Can't 3rd-party C code use ArgumentClinic?

ArgumentClinic stores the signature as text. For default values, only a few specific classes are supported. I want to support arbitrary Python objects.

Sourcefile is meaningless when there is no source file.

This is motivated by Cython, in which case there *is* a genuine and useful source file.