1672                          const char *from_s, Py_ssize_t from_len,  in replace_delete_substring()  argument
1685                             from_s, from_len,  in replace_delete_substring()
1693     result_len = self_len - (count * from_len);  in replace_delete_substring()
1706                                 from_s, from_len,  in replace_delete_substring()
1715         start = next+from_len;  in replace_delete_substring()
1769                            const char *from_s, Py_ssize_t from_len,  in replace_substring_in_place()  argument
1784                             from_s, from_len,  in replace_substring_in_place()
1800     Py_MEMCPY(start, to_s, from_len);  in replace_substring_in_place()
1801     start += from_len;  in replace_substring_in_place()
1806                                 from_s, from_len,  in replace_substring_in_place()
1810         Py_MEMCPY(start+offset, to_s, from_len);  in replace_substring_in_place()
1811         start += offset+from_len;  in replace_substring_in_place()
1887                   const char *from_s, Py_ssize_t from_len,  in replace_substring()  argument
1901                             from_s, from_len,  in replace_substring()
1911     product = count * (to_len-from_len);  in replace_substring()
1912     if (product / (to_len-from_len) != count) {  in replace_substring()
1931                                 from_s, from_len,  in replace_substring()
1940             start += from_len;  in replace_substring()
1947             start = next+from_len;  in replace_substring()
1959         const char *from_s, Py_ssize_t from_len,  in replace()  argument
1971         (from_len == 0 && to_len == 0)) {  in replace()
1978     if (from_len == 0) {  in replace()
1994         if (from_len == 1) {  in replace()
1998             return replace_delete_substring(self, from_s, from_len, maxcount);  in replace()
2004     if (from_len == to_len) {  in replace()
2005         if (from_len == 1) {  in replace()
2013                 self, from_s, from_len, to_s, to_len, maxcount);  in replace()
2018     if (from_len == 1) {  in replace()
2023         return replace_substring(self, from_s, from_len, to_s, to_len, maxcount);  in replace()