from __future__ import absolute_import import sys from future.utils import PY2, PY26 __future_module__ = True from collections import * if PY2: from UserDict import UserDict from UserList import UserList from UserString import UserString if PY26: from future.backports.misc import OrderedDict, Counter if sys.version_info < (3, 3): from future.backports.misc import ChainMap, _count_elements