[toward py3k] rewrite dict.keys() and dict.values() (part of #2711624)
Python 3K will only expose iterators.
http://docs.python.org/3.0/whatsnew/3.0.html#views-and-iterators-instead-of-lists
# copyright 2003-2010 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
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#
# This file is part of CubicWeb.
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""" CW - nevow/twisted client
"""