mitsuhiko/babel — pull request #94 by artms (2014-05-08 18:37:17+00:00)
Title: Improving odict performance by removing linear looking on __setitem__ method

__setitem__ methods has linear behavior. Every new key in collection slows down __setitem__ method linearly. And if you have quite big collection python might spend more time in __setitem__ than actually in application.