create a new instance in C of a Python subclass

[Alex Martelli]

Paul Miller wrote:

>>You do the same as in Python: call the type.
> 
> How would I do that from C?

To call any Python callable X (where X is a PyObject*) from C,
you can use C/API calls such as PyObject_CallObject, 
PyObject_CallFunction, PyObject_CallFunctionObjArgs.  Any of them 
returns a new reference -- they differ by how you pass parameters.

This holds for any callable Python object X, including of course
types as well as functions and many other kinds.


Alex