229 lines
6.5 KiB
Python
229 lines
6.5 KiB
Python
# flake8: noqa
|
|
# This whole file is full of lint errors
|
|
import functools
|
|
import operator
|
|
import sys
|
|
|
|
try:
|
|
import builtins
|
|
except ImportError:
|
|
import __builtin__ as builtins
|
|
|
|
|
|
PY2 = sys.version_info[0] == 2
|
|
WIN = sys.platform.startswith("win")
|
|
|
|
_identity = lambda x: x
|
|
|
|
if PY2:
|
|
unichr = unichr
|
|
text_type = unicode
|
|
string_types = (str, unicode)
|
|
integer_types = (int, long)
|
|
|
|
iterkeys = lambda d, *args, **kwargs: d.iterkeys(*args, **kwargs)
|
|
itervalues = lambda d, *args, **kwargs: d.itervalues(*args, **kwargs)
|
|
iteritems = lambda d, *args, **kwargs: d.iteritems(*args, **kwargs)
|
|
|
|
iterlists = lambda d, *args, **kwargs: d.iterlists(*args, **kwargs)
|
|
iterlistvalues = lambda d, *args, **kwargs: d.iterlistvalues(*args, **kwargs)
|
|
|
|
int_to_byte = chr
|
|
iter_bytes = iter
|
|
|
|
import collections as collections_abc
|
|
|
|
exec("def reraise(tp, value, tb=None):\n raise tp, value, tb")
|
|
|
|
def fix_tuple_repr(obj):
|
|
def __repr__(self):
|
|
cls = self.__class__
|
|
return "%s(%s)" % (
|
|
cls.__name__,
|
|
", ".join(
|
|
"%s=%r" % (field, self[index])
|
|
for index, field in enumerate(cls._fields)
|
|
),
|
|
)
|
|
|
|
obj.__repr__ = __repr__
|
|
return obj
|
|
|
|
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 native_string_result(func):
|
|
def wrapper(*args, **kwargs):
|
|
return func(*args, **kwargs).encode("utf-8")
|
|
|
|
return functools.update_wrapper(wrapper, func)
|
|
|
|
def implements_bool(cls):
|
|
cls.__nonzero__ = cls.__bool__
|
|
del cls.__bool__
|
|
return cls
|
|
|
|
from itertools import imap, izip, ifilter
|
|
|
|
range_type = xrange
|
|
|
|
from StringIO import StringIO
|
|
from cStringIO import StringIO as BytesIO
|
|
|
|
NativeStringIO = BytesIO
|
|
|
|
def make_literal_wrapper(reference):
|
|
return _identity
|
|
|
|
def normalize_string_tuple(tup):
|
|
"""Normalizes a string tuple to a common type. Following Python 2
|
|
rules, upgrades to unicode are implicit.
|
|
"""
|
|
if any(isinstance(x, text_type) for x in tup):
|
|
return tuple(to_unicode(x) for x in tup)
|
|
return tup
|
|
|
|
def try_coerce_native(s):
|
|
"""Try to coerce a unicode string to native if possible. Otherwise,
|
|
leave it as unicode.
|
|
"""
|
|
try:
|
|
return to_native(s)
|
|
except UnicodeError:
|
|
return s
|
|
|
|
wsgi_get_bytes = _identity
|
|
|
|
def wsgi_decoding_dance(s, charset="utf-8", errors="replace"):
|
|
return s.decode(charset, errors)
|
|
|
|
def wsgi_encoding_dance(s, charset="utf-8", errors="replace"):
|
|
if isinstance(s, bytes):
|
|
return s
|
|
return s.encode(charset, errors)
|
|
|
|
def to_bytes(x, charset=sys.getdefaultencoding(), errors="strict"):
|
|
if x is None:
|
|
return None
|
|
if isinstance(x, (bytes, bytearray, buffer)):
|
|
return bytes(x)
|
|
if isinstance(x, unicode):
|
|
return x.encode(charset, errors)
|
|
raise TypeError("Expected bytes")
|
|
|
|
def to_native(x, charset=sys.getdefaultencoding(), errors="strict"):
|
|
if x is None or isinstance(x, str):
|
|
return x
|
|
return x.encode(charset, errors)
|
|
|
|
|
|
else:
|
|
unichr = chr
|
|
text_type = str
|
|
string_types = (str,)
|
|
integer_types = (int,)
|
|
|
|
iterkeys = lambda d, *args, **kwargs: iter(d.keys(*args, **kwargs))
|
|
itervalues = lambda d, *args, **kwargs: iter(d.values(*args, **kwargs))
|
|
iteritems = lambda d, *args, **kwargs: iter(d.items(*args, **kwargs))
|
|
|
|
iterlists = lambda d, *args, **kwargs: iter(d.lists(*args, **kwargs))
|
|
iterlistvalues = lambda d, *args, **kwargs: iter(d.listvalues(*args, **kwargs))
|
|
|
|
int_to_byte = operator.methodcaller("to_bytes", 1, "big")
|
|
iter_bytes = functools.partial(map, int_to_byte)
|
|
|
|
import collections.abc as collections_abc
|
|
|
|
def reraise(tp, value, tb=None):
|
|
if value.__traceback__ is not tb:
|
|
raise value.with_traceback(tb)
|
|
raise value
|
|
|
|
fix_tuple_repr = _identity
|
|
implements_iterator = _identity
|
|
implements_to_string = _identity
|
|
implements_bool = _identity
|
|
native_string_result = _identity
|
|
imap = map
|
|
izip = zip
|
|
ifilter = filter
|
|
range_type = range
|
|
|
|
from io import StringIO, BytesIO
|
|
|
|
NativeStringIO = StringIO
|
|
|
|
_latin1_encode = operator.methodcaller("encode", "latin1")
|
|
|
|
def make_literal_wrapper(reference):
|
|
if isinstance(reference, text_type):
|
|
return _identity
|
|
return _latin1_encode
|
|
|
|
def normalize_string_tuple(tup):
|
|
"""Ensures that all types in the tuple are either strings
|
|
or bytes.
|
|
"""
|
|
tupiter = iter(tup)
|
|
is_text = isinstance(next(tupiter, None), text_type)
|
|
for arg in tupiter:
|
|
if isinstance(arg, text_type) != is_text:
|
|
raise TypeError(
|
|
"Cannot mix str and bytes arguments (got %s)" % repr(tup)
|
|
)
|
|
return tup
|
|
|
|
try_coerce_native = _identity
|
|
wsgi_get_bytes = _latin1_encode
|
|
|
|
def wsgi_decoding_dance(s, charset="utf-8", errors="replace"):
|
|
return s.encode("latin1").decode(charset, errors)
|
|
|
|
def wsgi_encoding_dance(s, charset="utf-8", errors="replace"):
|
|
if isinstance(s, text_type):
|
|
s = s.encode(charset)
|
|
return s.decode("latin1", errors)
|
|
|
|
def to_bytes(x, charset=sys.getdefaultencoding(), errors="strict"):
|
|
if x is None:
|
|
return None
|
|
if isinstance(x, (bytes, bytearray, memoryview)): # noqa
|
|
return bytes(x)
|
|
if isinstance(x, str):
|
|
return x.encode(charset, errors)
|
|
raise TypeError("Expected bytes")
|
|
|
|
def to_native(x, charset=sys.getdefaultencoding(), errors="strict"):
|
|
if x is None or isinstance(x, str):
|
|
return x
|
|
return x.decode(charset, errors)
|
|
|
|
|
|
def to_unicode(
|
|
x, charset=sys.getdefaultencoding(), errors="strict", allow_none_charset=False
|
|
):
|
|
if x is None:
|
|
return None
|
|
if not isinstance(x, bytes):
|
|
return text_type(x)
|
|
if charset is None and allow_none_charset:
|
|
return x
|
|
return x.decode(charset, errors)
|
|
|
|
|
|
try:
|
|
from os import fspath
|
|
except ImportError:
|
|
# Python < 3.6
|
|
# https://www.python.org/dev/peps/pep-0519/#backwards-compatibility
|
|
def fspath(path):
|
|
return path.__fspath__() if hasattr(path, "__fspath__") else path
|