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# __ # /__) _ _ _ _ _/ _ # / ( (- (/ (/ (- _) / _) # / """ 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>. :copyright: (c) 2017 by Kenneth Reitz. :license: Apache 2.0, see LICENSE for more details. """ import warnings import urllib3 from .exceptions import RequestsDependencyWarning 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"] # Verify urllib3 isn't installed from git. # Sometimes, urllib3 only reports its version as 16.1. if len(urllib3_version) == 2: urllib3_version.append("0") # Check urllib3 for compatibility. major, minor, patch = urllib3_version # noqa: F811 major, minor, patch = int(major), int(minor), int(patch) # urllib3 >= 1.21.1 assert major >= 1 if major == 1: assert minor >= 21 # Check charset_normalizer for compatibility. if chardet_version: major, minor, patch = chardet_version.split(".")[:3] major, minor, patch = int(major), int(minor), int(patch) # chardet_version >= 3.0.2, < 6.0.0 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) # charset_normalizer >= 2.0.0 < 4.0.0 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): # cryptography < 1.3.4 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) # Check imported dependencies for compatibility. 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, ) # Attempt to enable urllib3's fallback for SNI support # if the standard library doesn't support SNI or the # 'ssl' library isn't available. try: try: import ssl except ImportError: ssl = None if not getattr(ssl, "HAS_SNI", False): from urllib3.contrib import pyopenssl pyopenssl.inject_into_urllib3() # Check cryptography version from cryptography import __version__ as cryptography_version _check_cryptography(cryptography_version) except ImportError: pass # urllib3's DependencyWarnings should be silenced. from urllib3.exceptions import DependencyWarning warnings.simplefilter("ignore", DependencyWarning) # Set default logging handler to avoid "No handler found" warnings. 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()) # FileModeWarnings go off per the default. warnings.simplefilter("default", FileModeWarning, append=True)