PyArg_ParseTuple() & Py_DECREF()

[Alex Farber]

Fredrik Lundh wrote:
> Ralf wrote:
> > Consider the following two lines of source code at the
> > beginning of a C extension function:
> >
> >   PyObject *O;
> >   if (! PyArg_ParseTuple(args, "O", &O)) return NULL;
> >
> > Is it necessary to call Py_DECREF(O) before leaving the
> > extension function?
>
> no.  PyArg_ParseTuple returns borrowed references.

Do you have to call free(str) after 
PyArg_ParseTuple (val, "sO", &str, &obj)?

Where is str stored? Will it be overwritten after 
calling PyArg_ParseTuple (val, "sO", &str2, &obj)?

Regards
Alex