startswith and endswith don't accept None as slice index. Patch by Torsten Becker. (closes #11828)
diff --git a/Objects/bytesobject.c b/Objects/bytesobject.c
index 334e356..616f390 100644
--- a/Objects/bytesobject.c
+++ b/Objects/bytesobject.c
@@ -1567,19 +1567,9 @@
const char *sub;
Py_ssize_t sub_len;
Py_ssize_t start=0, end=PY_SSIZE_T_MAX;
- PyObject *obj_start=Py_None, *obj_end=Py_None;
- if (!PyArg_ParseTuple(args, "O|OO:find/rfind/index/rindex", &subobj,
- &obj_start, &obj_end))
- return -2;
- /* To support None in "start" and "end" arguments, meaning
- the same as if they were not passed.
- */
- if (obj_start != Py_None)
- if (!_PyEval_SliceIndex(obj_start, &start))
- return -2;
- if (obj_end != Py_None)
- if (!_PyEval_SliceIndex(obj_end, &end))
+ if (!stringlib_parse_args_finds("find/rfind/index/rindex",
+ args, &subobj, &start, &end))
return -2;
if (PyBytes_Check(subobj)) {
@@ -1826,8 +1816,7 @@
Py_ssize_t sub_len;
Py_ssize_t start = 0, end = PY_SSIZE_T_MAX;
- if (!PyArg_ParseTuple(args, "O|O&O&:count", &sub_obj,
- _PyEval_SliceIndex, &start, _PyEval_SliceIndex, &end))
+ if (!stringlib_parse_args_finds("count", args, &sub_obj, &start, &end))
return NULL;
if (PyBytes_Check(sub_obj)) {
@@ -2648,8 +2637,7 @@
PyObject *subobj;
int result;
- if (!PyArg_ParseTuple(args, "O|O&O&:startswith", &subobj,
- _PyEval_SliceIndex, &start, _PyEval_SliceIndex, &end))
+ if (!stringlib_parse_args_finds("startswith", args, &subobj, &start, &end))
return NULL;
if (PyTuple_Check(subobj)) {
Py_ssize_t i;
@@ -2689,8 +2677,7 @@
PyObject *subobj;
int result;
- if (!PyArg_ParseTuple(args, "O|O&O&:endswith", &subobj,
- _PyEval_SliceIndex, &start, _PyEval_SliceIndex, &end))
+ if (!stringlib_parse_args_finds("endswith", args, &subobj, &start, &end))
return NULL;
if (PyTuple_Check(subobj)) {
Py_ssize_t i;