Terry J. Reedy added the comment: This has been proposed, discussed on both python-list and python-ideas, and rejected more than once because there are there are multiple possible response to multiple keys: keep first value, keep second value (.update), keep both (in a list), or keep neither and raise.
'Obvious' ideas like this should be floated on one of those two lists to find out past response. ---------- nosy: +terry.reedy resolution: -> rejected stage: -> resolved status: open -> closed type: -> enhancement versions: +Python 3.5 -Python 3.4 _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue21678> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com