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# -*- coding: utf-8 -*-
# flake8: noqa
import marshal
import sys
PY2 = sys.version_info[0] == 2
PYPY = hasattr(sys, "pypy_translation_info")
_identity = lambda x: x
if not PY2:
unichr = chr
range_type = range
text_type = str
string_types = (str,)
integer_types = (int,)
iterkeys = lambda d: iter(d.keys())
itervalues = lambda d: iter(d.values())
iteritems = lambda d: iter(d.items())
import pickle
from io import BytesIO, StringIO
NativeStringIO = StringIO
def reraise(tp, value, tb=None):
if value.__traceback__ is not tb:
raise value.with_traceback(tb)
raise value
ifilter = filter
imap = map
izip = zip
intern = sys.intern
implements_iterator = _identity
implements_to_string = _identity
encode_filename = _identity
marshal_dump = marshal.dump
marshal_load = marshal.load
else:
unichr = unichr
text_type = unicode
range_type = xrange
string_types = (str, unicode)
integer_types = (int, long)
iterkeys = lambda d: d.iterkeys()
itervalues = lambda d: d.itervalues()
iteritems = lambda d: d.iteritems()
import cPickle as pickle
from cStringIO import StringIO as BytesIO, StringIO
NativeStringIO = BytesIO
exec("def reraise(tp, value, tb=None):\n raise tp, value, tb")
from itertools import imap, izip, ifilter
intern = intern
def implements_iterator(cls):
cls.next = cls.__next__
del cls.__next__
return cls
def implements_to_string(cls):
cls.__unicode__ = cls.__str__
cls.__str__ = lambda x: x.__unicode__().encode("utf-8")
return cls
def encode_filename(filename):
if isinstance(filename, unicode):
return filename.encode("utf-8")
return filename
def marshal_dump(code, f):
if isinstance(f, file):
marshal.dump(code, f)
else:
f.write(marshal.dumps(code))
def marshal_load(f):
if isinstance(f, file):
return marshal.load(f)
return marshal.loads(f.read())
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(type):
def __new__(cls, name, this_bases, d):
return meta(name, bases, d)
return type.__new__(metaclass, "temporary_class", (), {})
try:
from urllib.parse import quote_from_bytes as url_quote
except ImportError:
from urllib import quote as url_quote
try:
from collections import abc
except ImportError:
import collections as abc
try:
from os import fspath
except ImportError:
try:
from pathlib import PurePath
except ImportError:
PurePath = None
def fspath(path):
if hasattr(path, "__fspath__"):
return path.__fspath__()
# Python 3.5 doesn't have __fspath__ yet, use str.
if PurePath is not None and isinstance(path, PurePath):
return str(path)
return path
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