New submission from Ashwini Chaudhary: I think the python docs are missing the behavior of += for lists. It actually calls list.extend() but can't find that anywhere in docs expect in source code, http://hg.python.org/cpython/file/2d2d4807a3ed/Objects/listobject.c#l892. ---------- assignee: docs@python components: Documentation messages: 177627 nosy: docs@python, montysinngh priority: normal severity: normal status: open title: Docs missing the behavior of += (in-place add) for lists. type: enhancement versions: Python 2.6, Python 2.7, Python 3.1, Python 3.2, Python 3.3, Python 3.4, Python 3.5 _______________________________________ Python tracker <report@bugs.python.org> <http://bugs.python.org/issue16701> _______________________________________