requests http library requests is an http library written in python for human beings basic get usage import requests r requests get https www python org r statuscode 200 b python is a programming language in r content true or post payload dictkey1 value1 key2 value2 r requests post https httpbin orgpost datapayload printr text form key1 value1 key2 value2 the other http methods are supported see requests api full documentation is at https requests readthedocs io c 2017 by kenneth reitz license apache 2 0 see license for more details sometimes urllib3 only reports its version as 16 1 check urllib3 for compatibility urllib3 1 21 1 check charsetnormalizer for compatibility chardetversion 3 0 2 6 0 0 charsetnormalizer 2 0 0 4 0 0 cryptography 1 3 4 check imported dependencies for compatibility attempt to enable urllib3 s fallback for sni support if the standard library doesn t support sni or the ssl library isn t available check cryptography version urllib3 s dependencywarnings should be silenced set default logging handler to avoid no handler found warnings filemodewarnings go off per the default __ __ _ _ _ _ _ _ _ _ requests http library requests is an http library written in python for human beings basic get usage import requests r requests get https www python org r status_code 200 b python is a programming language in r content true or post payload dict key1 value1 key2 value2 r requests post https httpbin org post data payload print r text form key1 value1 key2 value2 the other http methods are supported see requests api full documentation is at https requests readthedocs io c 2017 by kenneth reitz license apache 2 0 see license for more details verify urllib3 isn t installed from git sometimes urllib3 only reports its version as 16 1 check urllib3 for compatibility noqa f811 urllib3 1 21 1 check charset_normalizer for compatibility chardet_version 3 0 2 6 0 0 charset_normalizer 2 0 0 4 0 0 cryptography 1 3 4 check imported dependencies for compatibility attempt to enable urllib3 s fallback for sni support if the standard library doesn t support sni or the ssl library isn t available check cryptography version urllib3 s dependencywarnings should be silenced set default logging handler to avoid no handler found warnings filemodewarnings go off per the default
import warnings

import urllib3

from .exceptions import RequestsDependencyWarning

try:
    from charset_normalizer import __version__ as charset_normalizer_version
except ImportError:
    charset_normalizer_version = None

try:
    from chardet import __version__ as chardet_version
except ImportError:
    chardet_version = None


def check_compatibility(urllib3_version, chardet_version, charset_normalizer_version):
    urllib3_version = urllib3_version.split(".")
    assert urllib3_version != ["dev"]  

    
    if len(urllib3_version) == 2:
        urllib3_version.append("0")

    
    major, minor, patch = urllib3_version  
    major, minor, patch = int(major), int(minor), int(patch)
    
    assert major >= 1
    if major == 1:
        assert minor >= 21

    
    if chardet_version:
        major, minor, patch = chardet_version.split(".")[:3]
        major, minor, patch = int(major), int(minor), int(patch)
        
        assert (3, 0, 2) <= (major, minor, patch) < (6, 0, 0)
    elif charset_normalizer_version:
        major, minor, patch = charset_normalizer_version.split(".")[:3]
        major, minor, patch = int(major), int(minor), int(patch)
        
        assert (2, 0, 0) <= (major, minor, patch) < (4, 0, 0)
    else:
        raise Exception("You need either charset_normalizer or chardet installed")


def _check_cryptography(cryptography_version):
    
    try:
        cryptography_version = list(map(int, cryptography_version.split(".")))
    except ValueError:
        return

    if cryptography_version < [1, 3, 4]:
        warning = "Old version of cryptography ({}) may cause slowdown.".format(
            cryptography_version
        )
        warnings.warn(warning, RequestsDependencyWarning)



try:
    check_compatibility(
        urllib3.__version__, chardet_version, charset_normalizer_version
    )
except (AssertionError, ValueError):
    warnings.warn(
        "urllib3 ({}) or chardet ({})/charset_normalizer ({}) doesn't match a supported "
        "version!".format(
            urllib3.__version__, chardet_version, charset_normalizer_version
        ),
        RequestsDependencyWarning,
    )




try:
    try:
        import ssl
    except ImportError:
        ssl = None

    if not getattr(ssl, "HAS_SNI", False):
        from urllib3.contrib import pyopenssl

        pyopenssl.inject_into_urllib3()

        
        from cryptography import __version__ as cryptography_version

        _check_cryptography(cryptography_version)
except ImportError:
    pass


from urllib3.exceptions import DependencyWarning

warnings.simplefilter("ignore", DependencyWarning)


import logging
from logging import NullHandler

from . import packages, utils
from .__version__ import (
    __author__,
    __author_email__,
    __build__,
    __cake__,
    __copyright__,
    __description__,
    __license__,
    __title__,
    __url__,
    __version__,
)
from .api import delete, get, head, options, patch, post, put, request
from .exceptions import (
    ConnectionError,
    ConnectTimeout,
    FileModeWarning,
    HTTPError,
    JSONDecodeError,
    ReadTimeout,
    RequestException,
    Timeout,
    TooManyRedirects,
    URLRequired,
)
from .models import PreparedRequest, Request, Response
from .sessions import Session, session
from .status_codes import codes

logging.getLogger(__name__).addHandler(NullHandler())


warnings.simplefilter("default", FileModeWarning, append=True)