Josh Rosenberg <shadowranger+pyt...@gmail.com> added the comment:
That's the documented behavior. Per https://docs.python.org/3/reference/datamodel.html#object.__getitem__ : >Note: for loops expect that an IndexError will be raised for illegal indexes >to allow proper detection of the end of the sequence. The need for *only* __getitem__ is also mentioned in the documentation of the iter builtin ( https://docs.python.org/3/library/functions.html#iter ): >Without a second argument, object must be a collection object which supports >the iteration protocol (the __iter__() method), or it must support the >sequence protocol (the __getitem__() method with integer arguments starting at >0). At no point is a dependency on __len__ mentioned. ---------- nosy: +josh.r _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue34494> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
