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145 lines
3.4 KiB
145 lines
3.4 KiB
# -*- coding: utf-8 -*-
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# flake8: noqa
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# pylint: skip-file
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"""
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Python 2/3 compatibility.
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Some py2/py3 compatibility support based on a stripped down
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version of six so we don't have to depend on a specific version
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of it.
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Borrowed from
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https://github.com/mitsuhiko/flask/blob/master/flask/_compat.py
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"""
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from __future__ import absolute_import
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import cgi
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from decimal import Decimal
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from functools import partial
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import inspect
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import sys
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PY2 = sys.version_info[0] == 2
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def _identity(x):
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return x
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if PY2:
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from collections import Hashable, Iterable, Mapping, Sequence
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from itertools import izip
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from urllib import urlencode
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from HTMLParser import HTMLParser
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import __builtin__ as _builtins
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from urlparse import parse_qs, parse_qsl, urlsplit, urlunsplit
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text_type = unicode
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string_types = (str, unicode)
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integer_types = (int, long)
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number_types = (int, long, float, Decimal)
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getfullargspec = inspect.getargspec
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html_unescape = HTMLParser().unescape
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html_escape = partial(cgi.escape, quote=True)
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def iterkeys(d):
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return d.iterkeys()
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def itervalues(d):
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return d.itervalues()
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def iteritems(d):
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return d.iteritems()
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_range = xrange
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_cmp = cmp
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def implements_to_string(cls):
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cls.__unicode__ = cls.__str__
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cls.__str__ = lambda x: x.__unicode__().encode("utf-8")
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return cls
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else:
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import builtins as _builtins
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from collections.abc import Hashable, Iterable, Mapping, Sequence
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import html
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from html.parser import HTMLParser
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from urllib.parse import parse_qs, parse_qsl, urlencode, urlsplit, urlunsplit
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text_type = str
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string_types = (str,)
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integer_types = (int,)
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number_types = (int, float, Decimal)
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builtins = _builtins.__dict__.values()
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getfullargspec = inspect.getfullargspec
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html_unescape = html.unescape
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html_escape = html.escape
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def iterkeys(d):
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return iter(d.keys())
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def itervalues(d):
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return iter(d.values())
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def iteritems(d):
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return iter(d.items())
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_range = range
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implements_to_string = _identity
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izip = zip
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def _cmp(a, b):
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if a is None and b is None:
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return 0
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elif a is None:
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return -1
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elif b is None:
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return 1
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return (a > b) - (a < b)
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builtins = {
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value: key for key, value in iteritems(_builtins.__dict__) if isinstance(value, Hashable)
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}
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try:
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from functools import cmp_to_key
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except ImportError:
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# This function is missing on PY26.
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def cmp_to_key(mycmp):
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"""Convert a cmp= function into a key= function."""
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class K(object):
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__slots__ = ["obj"]
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def __init__(self, obj, *args):
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self.obj = obj
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def __lt__(self, other):
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return mycmp(self.obj, other.obj) < 0
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def __gt__(self, other):
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return mycmp(self.obj, other.obj) > 0
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def __eq__(self, other):
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return mycmp(self.obj, other.obj) == 0
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def __le__(self, other):
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return mycmp(self.obj, other.obj) <= 0
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def __ge__(self, other):
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return mycmp(self.obj, other.obj) >= 0
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def __ne__(self, other):
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return mycmp(self.obj, other.obj) != 0
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def __hash__(self):
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raise TypeError("hash not implemented")
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return K
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