What are __signature__ and __text_signature__ used for in Python 3.4
These attributes are there to enable introspection for Python objects defined in C code. The C-API Argument Clinic provides the data, to assist the inspect module when building Signature objects. Introspection of C-API functions was not supported before. See the internal inspect._signature_fromstr() function on how the __text_signature__ value is used. Currently, the __text_signature__ attribute is … Read more