1"""compatibility layer for itertools (Python standard library)"""
2from __future__ import absolute_import
3from itertools import *
4
5try:
6    filterfalse  # New in Python 3.
7except NameError:
8    filterfalse = ifilterfalse
9
10
11try:
12    zip_longest
13except NameError:
14    zip_longest = izip_longest
15