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- # -*- coding: utf-8 -*-
- # flake8: noqa
- import sys
- import itertools
- PY2 = int(sys.version_info[0]) == 2
- if PY2:
- import urlparse
- from collections import Mapping, Iterable, MutableSet
- urlparse = urlparse
- text_type = unicode
- binary_type = str
- unicode = unicode
- basestring = basestring
- iterkeys = lambda d: d.iterkeys()
- itervalues = lambda d: d.itervalues()
- iteritems = lambda d: d.iteritems()
- zip_longest = itertools.izip_longest
- else:
- import urllib.parse
- from collections.abc import Mapping, Iterable, MutableSet
- urlparse = urllib.parse
- text_type = str
- binary_type = bytes
- unicode = str
- basestring = (str, bytes)
- iterkeys = lambda d: d.keys()
- itervalues = lambda d: d.values()
- iteritems = lambda d: d.items()
- zip_longest = itertools.zip_longest
- # From six
- def with_metaclass(meta, *bases):
- """Create a base class with a metaclass."""
- # This requires a bit of explanation: the basic idea is to make a dummy
- # metaclass for one level of class instantiation that replaces itself with
- # the actual metaclass.
- class metaclass(meta): # noqa
- def __new__(cls, name, this_bases, d):
- return meta(name, bases, d)
- return type.__new__(metaclass, 'temporary_class', (), {})
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