New submission from Dan Snider <mr.assume.away@gmail.com>: Unfortunately, it looks like there's no requirement for an abc.Sequence to implement the 3 argument form of seq.index, so I suppose this is technically just a documentation bug...
range(5).index(2, 1) Traceback (most recent call last): File "<stdin>", line 1, in <module> TypeError: index() takes exactly one argument (2 given)
help(range.index) Help on method_descriptor:
index(...) rangeobject.index(value, [start, [stop]]) -> integer -- return index of value. Raise ValueError if the value is not present. ---------- assignee: docs@python components: Argument Clinic, Documentation messages: 326701 nosy: bup, docs@python, larry priority: normal severity: normal status: open title: range.index only takes one argument when it's documented as taking the usual 3 versions: Python 3.4, Python 3.5, Python 3.6, Python 3.7 _______________________________________ Python tracker <report@bugs.python.org> <https://bugs.python.org/issue34848> _______________________________________