Calling a python function from C++

["Martin v. Löwis"]

lamthierry at gmail.com wrote:
> Let's say I have a python function do some math like the following:
> 
> def doMath(self):
>    self.val = self.val + 1
> 
> 
> How can I call this python function from C++? Assuming I have some sort
> of Python wrapper around my C++ codes.

See the "Embedding and Extending" tutorial. In short, you write

 resultObj = PyObject_CallMethod(selfObj, "doMath", "");
 if (resultObj == NULL)
    return NULL;
 Py_DECREF(resultObj); // resultObj should be Py_None

How you get hold of self depends on your application.

Regards,
Martin