Karthikeyan Singaravelan <tir.kar...@gmail.com> added the comment: https://docs.python.org/3/faq/programming.html#faq-augmented-assignment-tuple-error
> for lists, __iadd__ is equivalent to calling extend on the list and returning > the list. That’s why we say that for lists, += is a “shorthand” for > list.extend This example is calling extend on list of strings with another string as argument. Hence the target string is iterated and each character is added as an element. __add__ is different compared __iadd__. For += __iadd__ is called if defined and falls back to __add__ ---------- nosy: +xtreak _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue45293> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
