192 static PyObject *
193 urj_pyc_tap_detect (urj_pychain_t *self, PyObject *args)
194 {
195 urj_chain_t *urc = self->urchain;
196 int maxirlen = 0;
197 if (!PyArg_ParseTuple (args, "|i", &maxirlen))
when PyArg_ParseTuple() succeeds
taking False path
198 return NULL;
199 if (!urj_pyc_precheck (urc, UPRC_CBL))
when considering value == (int)0 from chain.c:199
taking True path
200 return NULL;
201 return urj_py_chkret (urj_tap_detect (urc, maxirlen));
202 }
returning (PyObject*)NULL without setting an exception