[issue23793] Support __add__ for deques.

Changes by Raymond Hettinger : Added file: http://bugs.python.org/file38713/deque_add5.diff ___ Python tracker ___ ___ Python-bugs-list mailin

[issue23793] Support __add__ for deques.

New submission from Raymond Hettinger: One more step towards making the deque API a little closer to that for lists: >>> deque('abc') + deque('def') deque(['a', 'b', 'c', 'd', 'e', 'f']) -- assignee: rhettinger components: Extension Modules files: deque_add4.diff keywords: pat