Ashok Bakthavathsalam added the comment: The documentation (https://docs.python.org/3/library/stdtypes.html#str.find) does not describe what will be the behaviour if the substring is "".
And by the way, as per https://docs.python.org/3/reference/expressions.html#membership-test-operations, Empty strings are always considered to be a substring of any other string, so "" in "abc" will return True. Returning an invalid index value, although confusing, should at least be documented in some form. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue31504> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
