Current File : //usr/lib/python3/dist-packages/urllib3/__init__.py
"""
Python HTTP library with thread-safe connection pooling, file post support, user friendly, and more
"""
from __future__ import annotations
# Set default logging handler to avoid "No handler found" warnings.
import logging
import typing
import warnings
from logging import NullHandler
from . import exceptions
from ._base_connection import _TYPE_BODY
from ._collections import HTTPHeaderDict
from ._version import __version__
from .connectionpool import HTTPConnectionPool, HTTPSConnectionPool, connection_from_url
from .filepost import _TYPE_FIELDS, encode_multipart_formdata
from .poolmanager import PoolManager, ProxyManager, proxy_from_url
from .response import BaseHTTPResponse, HTTPResponse
from .util.request import make_headers
from .util.retry import Retry
from .util.timeout import Timeout
# Ensure that Python is compiled with OpenSSL 1.1.1+
# If the 'ssl' module isn't available at all that's
# fine, we only care if the module is available.
try:
import ssl
except ImportError:
pass
else:
if not ssl.OPENSSL_VERSION.startswith("OpenSSL "): # Defensive:
warnings.warn(
"urllib3 v2.0 only supports OpenSSL 1.1.1+, currently "
f"the 'ssl' module is compiled with {ssl.OPENSSL_VERSION!r}. "
"See: https://github.com/urllib3/urllib3/issues/3020",
exceptions.NotOpenSSLWarning,
)
elif ssl.OPENSSL_VERSION_INFO < (1, 1, 1): # Defensive:
raise ImportError(
"urllib3 v2.0 only supports OpenSSL 1.1.1+, currently "
f"the 'ssl' module is compiled with {ssl.OPENSSL_VERSION!r}. "
"See: https://github.com/urllib3/urllib3/issues/2168"
)
# === NOTE TO REPACKAGERS AND VENDORS ===
# Please delete this block, this logic is only
# for urllib3 being distributed via PyPI.
# See: https://github.com/urllib3/urllib3/issues/2680
try:
import urllib3_secure_extra # type: ignore # noqa: F401
except ModuleNotFoundError:
pass
else:
warnings.warn(
"'urllib3[secure]' extra is deprecated and will be removed "
"in urllib3 v2.1.0. Read more in this issue: "
"https://github.com/urllib3/urllib3/issues/2680",
category=DeprecationWarning,
stacklevel=2,
)
__author__ = "Andrey Petrov (andrey.petrov@shazow.net)"
__license__ = "MIT"
__version__ = __version__
__all__ = (
"HTTPConnectionPool",
"HTTPHeaderDict",
"HTTPSConnectionPool",
"PoolManager",
"ProxyManager",
"HTTPResponse",
"Retry",
"Timeout",
"add_stderr_logger",
"connection_from_url",
"disable_warnings",
"encode_multipart_formdata",
"make_headers",
"proxy_from_url",
"request",
"BaseHTTPResponse",
)
logging.getLogger(__name__).addHandler(NullHandler())
def add_stderr_logger(
level: int = logging.DEBUG,
) -> logging.StreamHandler[typing.TextIO]:
"""
Helper for quickly adding a StreamHandler to the logger. Useful for
debugging.
Returns the handler after adding it.
"""
# This method needs to be in this __init__.py to get the __name__ correct
# even if urllib3 is vendored within another package.
logger = logging.getLogger(__name__)
handler = logging.StreamHandler()
handler.setFormatter(logging.Formatter("%(asctime)s %(levelname)s %(message)s"))
logger.addHandler(handler)
logger.setLevel(level)
logger.debug("Added a stderr logging handler to logger: %s", __name__)
return handler
# ... Clean up.
del NullHandler
# All warning filters *must* be appended unless you're really certain that they
# shouldn't be: otherwise, it's very hard for users to use most Python
# mechanisms to silence them.
# SecurityWarning's always go off by default.
warnings.simplefilter("always", exceptions.SecurityWarning, append=True)
# InsecurePlatformWarning's don't vary between requests, so we keep it default.
warnings.simplefilter("default", exceptions.InsecurePlatformWarning, append=True)
def disable_warnings(category: type[Warning] = exceptions.HTTPWarning) -> None:
"""
Helper for quickly disabling all urllib3 warnings.
"""
warnings.simplefilter("ignore", category)
_DEFAULT_POOL = PoolManager()
def request(
method: str,
url: str,
*,
body: _TYPE_BODY | None = None,
fields: _TYPE_FIELDS | None = None,
headers: typing.Mapping[str, str] | None = None,
preload_content: bool | None = True,
decode_content: bool | None = True,
redirect: bool | None = True,
retries: Retry | bool | int | None = None,
timeout: Timeout | float | int | None = 3,
json: typing.Any | None = None,
) -> BaseHTTPResponse:
"""
A convenience, top-level request method. It uses a module-global ``PoolManager`` instance.
Therefore, its side effects could be shared across dependencies relying on it.
To avoid side effects create a new ``PoolManager`` instance and use it instead.
The method does not accept low-level ``**urlopen_kw`` keyword arguments.
"""
return _DEFAULT_POOL.request(
method,
url,
body=body,
fields=fields,
headers=headers,
preload_content=preload_content,
decode_content=decode_content,
redirect=redirect,
retries=retries,
timeout=timeout,
json=json,
)
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