diff options
Diffstat (limited to 'Modules/itertoolsmodule.c')
| -rw-r--r-- | Modules/itertoolsmodule.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/Modules/itertoolsmodule.c b/Modules/itertoolsmodule.c index b202e52..71d5bb6 100644 --- a/Modules/itertoolsmodule.c +++ b/Modules/itertoolsmodule.c @@ -3050,6 +3050,7 @@ count_new(PyTypeObject *type, PyObject *args, PyObject *kwds) Py_ssize_t cnt = 0; PyObject *long_cnt = NULL; PyObject *long_step = NULL; + long step; static char *kwlist[] = {"start", "step", 0}; if (!PyArg_ParseTupleAndKeywords(args, kwds, "|OO:count", @@ -3087,9 +3088,11 @@ count_new(PyTypeObject *type, PyObject *args, PyObject *kwds) assert(long_cnt != NULL && long_step != NULL); /* Fast mode only works when the step is 1 */ - if (!PyLong_Check(long_step) || - PyLong_AS_LONG(long_step) != 1) { - slow_mode = 1; + step = PyLong_AsLong(long_step); + if (step != 1) { + slow_mode = 1; + if (step == -1 && PyErr_Occurred()) + PyErr_Clear(); } if (slow_mode) |