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mauro <[EMAIL PROTECTED]> writes:
> I am trying to call within a C extension a Python function provided as
> an argument by the user with: PyObject_Call(). The C extension should
> work also if the user supplies a class method, but in this case I am
> getting an error. Do I need to explicitly pass 'self' as an argument
> to PyObject_Call()?
You don't. The reference to self will be added automatically when
invoking the function you receive as object.method.
> if ((tmp_args = PyTuple_New(1)) == NULL)
> PyErr_SetString( PyExc_ReferenceError, "attempt to access a
> null-
> pointer" );
> PyTuple_SetItem(tmp_args, 0, paramlist);
Maybe you are mismanaging the reference count -- PyTuple_SetItem
steals the refcount of its argument. Anyway, why not use
PyObject_CallFunction or PyObject_CallFunctionObjArgs? For example:
PyObject *
mymodule_main(PyObject *ignored, PyObject *func)
{
PyObject *result, *my_param;
/* ... do something, e.g. create my_param ... */
/* call func */
result = PyObject_CallFunction(received_func, "O", my_param);
Py_DECREF(my_param); /* assuming you no longer need it */
if (!result)
return NULL;
/* ... do something with result ... */
Py_DECREF(result);
Py_INCREF(Py_None);
return Py_None; /* or whatever */
}
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