import sys
import array
PY2 = sys.version_info[0] == 2
_identity = lambda x: x
if not PY2:
text_type = str
string_types = (str,)
integer_types = (int, )
text_to_native = lambda s, enc: s
unichr = chr
iterkeys = lambda d: iter(d.keys())
itervalues = lambda d: iter(d.values())
iteritems = lambda d: iter(d.items())
from io import StringIO, BytesIO
import pickle
izip = zip
imap = map
range_type = range
cmp = lambda a, b: (a > b) - (a < b)
array_tobytes = array.array.tobytes
from collections import abc
else:
text_type = unicode
string_types = (str, unicode)
integer_types = (int, long)
text_to_native = lambda s, enc: s.encode(enc)
unichr = unichr
iterkeys = lambda d: d.iterkeys()
itervalues = lambda d: d.itervalues()
iteritems = lambda d: d.iteritems()
from cStringIO import StringIO as BytesIO
from StringIO import StringIO
import cPickle as pickle
from itertools import imap
from itertools import izip
range_type = xrange
cmp = cmp
array_tobytes = array.array.tostring
import collections as abc
number_types = integer_types + (float,)
def force_text(s, encoding='utf-8', errors='strict'):
if isinstance(s, text_type):
return s
if isinstance(s, bytes):
return s.decode(encoding, errors)
return text_type(s)
#
# Since Python 3.3, a fast decimal implementation is already included in the
# standard library. Otherwise use cdecimal when available
#
if sys.version_info[:2] >= (3, 3):
import decimal
else:
try:
import cdecimal as decimal
except ImportError:
import decimal
