I tried to recreate the problem based on what you described in your message. I was unable to recreate the problem.
I wrote the following file "sjh.c":
#include <Python.h>
PyObject *f(PyObject *self, PyObject *args) {
PyObject *ob = NULL;
if(!PyArg_ParseTuple(args, "O", &ob)) return NULL;
Py_INCREF(Py_None);
return Py_None;
}
PyMethodDef methods[] = {
{"f", (PyCFunction)f, METH_VARARGS, "test function"},
{NULL}
};
void initsjh() {
Py_InitModule3("sjh", methods, "test module");
}
I compiled it for Python 2.3:
$ gcc sjh.c -I/usr/include/python2.3 -L/usr/lib/python2.3/config -lpython2.3
-shared -o sjh.so
and I tested it:
$ python -c 'import sjh; print sjh.f(1)'
None
$ python -c 'import sjh; print sjh.f({})'
None
$ python -c 'import sjh; print sjh.f({None: None})'
None
Jeff
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