2459                          const char *from_s, Py_ssize_t from_len,  in replace_delete_substring()  argument
2471                             from_s, from_len,  in replace_delete_substring()
2479     result_len = self_len - (count * from_len);  in replace_delete_substring()
2492                                 from_s, from_len,  in replace_delete_substring()
2501         start = next+from_len;  in replace_delete_substring()
2555                            const char *from_s, Py_ssize_t from_len,  in replace_substring_in_place()  argument
2570                             from_s, from_len,  in replace_substring_in_place()
2586     Py_MEMCPY(start, to_s, from_len);  in replace_substring_in_place()
2587     start += from_len;  in replace_substring_in_place()
2592                                 from_s, from_len,  in replace_substring_in_place()
2596         Py_MEMCPY(start+offset, to_s, from_len);  in replace_substring_in_place()
2597         start += offset+from_len;  in replace_substring_in_place()
2673                   const char *from_s, Py_ssize_t from_len,  in replace_substring()  argument
2686                             from_s, from_len,  in replace_substring()
2696     product = count * (to_len-from_len);  in replace_substring()
2697     if (product / (to_len-from_len) != count) {  in replace_substring()
2716                                 from_s, from_len,  in replace_substring()
2725             start += from_len;  in replace_substring()
2732             start = next+from_len;  in replace_substring()
2744     const char *from_s, Py_ssize_t from_len,  in replace()  argument
2756         (from_len == 0 && to_len == 0)) {  in replace()
2763     if (from_len == 0) {  in replace()
2779         if (from_len == 1) {  in replace()
2783             return replace_delete_substring(self, from_s, from_len, maxcount);  in replace()
2789     if (from_len == to_len) {  in replace()
2790         if (from_len == 1) {  in replace()
2798                 self, from_s, from_len, to_s, to_len, maxcount);  in replace()
2803     if (from_len == 1) {  in replace()
2808         return replace_substring(self, from_s, from_len, to_s, to_len, maxcount);  in replace()
2825     Py_ssize_t from_len, to_len;  in string_replace()  local
2832         from_len = PyString_GET_SIZE(from);  in string_replace()
2839     else if (PyObject_AsCharBuffer(from, &from_s, &from_len))  in string_replace()
2855                                from_s, from_len,  in string_replace()