compat.py•1.82 kB
"""
requests.compat
~~~~~~~~~~~~~~~
This module previously handled import compatibility issues
between Python 2 and Python 3. It remains for backwards
compatibility until the next major version.
"""
import importlib
import sys
# -------------------
# Character Detection
# -------------------
def _resolve_char_detection():
"""Find supported character detection libraries."""
chardet = None
for lib in ("chardet", "charset_normalizer"):
if chardet is None:
try:
chardet = importlib.import_module(lib)
except ImportError:
pass
return chardet
chardet = _resolve_char_detection()
# -------
# Pythons
# -------
# Syntax sugar.
_ver = sys.version_info
#: Python 2.x?
is_py2 = _ver[0] == 2
#: Python 3.x?
is_py3 = _ver[0] == 3
# json/simplejson module import resolution
has_simplejson = False
try:
import simplejson as json
has_simplejson = True
except ImportError:
import json
if has_simplejson:
from simplejson import JSONDecodeError
else:
from json import JSONDecodeError
# Keep OrderedDict for backwards compatibility.
from collections import OrderedDict
from collections.abc import Callable, Mapping, MutableMapping
from http import cookiejar as cookielib
from http.cookies import Morsel
from io import StringIO
# --------------
# Legacy Imports
# --------------
from urllib.parse import (
quote,
quote_plus,
unquote,
unquote_plus,
urldefrag,
urlencode,
urljoin,
urlparse,
urlsplit,
urlunparse,
)
from urllib.request import (
getproxies,
getproxies_environment,
parse_http_list,
proxy_bypass,
proxy_bypass_environment,
)
builtin_str = str
str = str
bytes = bytes
basestring = (str, bytes)
numeric_types = (int, float)
integer_types = (int,)