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- import operator
- import sys
- PY3 = sys.version_info[0] > 2
- PY33 = sys.version_info[0] == 3 and sys.version_info[1] == 3
- PY34 = sys.version_info[0] == 3 and sys.version_info[1] == 4
- PYPY = hasattr(sys, 'pypy_version_info')
-
- __all__ = ('map', 'filter', 'range', 'zip', 'reduce', 'zip_longest',
- 'iteritems', 'iterkeys', 'itervalues', 'filterfalse',
- 'PY3', 'PY34', 'PYPY', 'import_module')
-
- if PY3:
- map = map
- filter = filter
- range = range
- zip = zip
- from functools import reduce
- from itertools import zip_longest
- from itertools import filterfalse
- iteritems = operator.methodcaller('items')
- iterkeys = operator.methodcaller('keys')
- itervalues = operator.methodcaller('values')
- else:
- range = xrange
- reduce = reduce
- from itertools import imap as map
- from itertools import ifilter as filter
- from itertools import ifilterfalse as filterfalse
- from itertools import izip as zip
- from itertools import izip_longest as zip_longest
- iteritems = operator.methodcaller('iteritems')
- iterkeys = operator.methodcaller('iterkeys')
- itervalues = operator.methodcaller('itervalues')
-
- try:
- from importlib import import_module
- except ImportError:
- def import_module(name):
- __import__(name)
- return sys.modules[name]
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