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compat.py
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compat.py
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# -*- coding: utf-8 -*-
import sys
PY2 = int(sys.version[0]) == 2
if PY2:
from itertools import imap, izip
import urllib2 as request
from urllib import quote as urlquote
text_type = unicode
binary_type = str
string_types = (str, unicode)
unicode = unicode
basestring = basestring
imap = imap
izip = izip
import unicodecsv as csv
def implements_to_string(cls):
'''Class decorator that renames __str__ to __unicode__ and
modifies __str__ that returns utf-8.
'''
cls.__unicode__ = cls.__str__
cls.__str__ = lambda x: x.__unicode__().encode('utf-8')
return cls
else: # PY3
from urllib import request
from urllib.parse import quote as urlquote
text_type = str
binary_type = bytes
string_types = (str,)
unicode = str
basestring = (str, bytes)
imap = map
izip = zip
import csv
implements_to_string = lambda x: x
def with_metaclass(meta, *bases):
'''Defines a metaclass.
Creates a dummy class with a dummy metaclass. When subclassed, the dummy
metaclass is used, which has a constructor that instantiates a
new class from the original parent. This ensures that the dummy class and
dummy metaclass are not in the inheritance tree.
Credit to Armin Ronacher.
'''
class metaclass(meta):
__call__ = type.__call__
__init__ = type.__init__
def __new__(cls, name, this_bases, d):
if this_bases is None:
return type.__new__(cls, name, (), d)
return meta(name, bases, d)
return metaclass('temporary_class', None, {})