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Update urllib3 requirement from ~=1.25 to ~=1.26

Created by: dependabot-preview[bot]

Updates the requirements on urllib3 to permit the latest version.

Release notes

Sourced from urllib3's releases.

1.26.2

IMPORTANT: urllib3 v2.0 will drop support for Python 2: Read more in the v2.0 Roadmap

  • Fixed an issue where wrap_socket and CERT_REQUIRED wouldn't be imported properly on Python 2.7.8 and earlier (Pull #2052)
Changelog

Sourced from urllib3's changelog.

1.26.2 (2020-11-12)

  • Fixed an issue where wrap_socket and CERT_REQUIRED wouldn't be imported properly on Python 2.7.8 and earlier (Pull #2052)

1.26.1 (2020-11-11)

  • Fixed an issue where two User-Agent headers would be sent if a User-Agent header key is passed as bytes (Pull #2047)

1.26.0 (2020-11-10)

  • NOTE: urllib3 v2.0 will drop support for Python 2. Read more in the v2.0 Roadmap.
  • Added support for HTTPS proxies contacting HTTPS servers (Pull #1923, Pull #1806)
  • Deprecated negotiating TLSv1 and TLSv1.1 by default. Users that still wish to use TLS earlier than 1.2 without a deprecation warning should opt-in explicitly by setting ssl_version=ssl.PROTOCOL_TLSv1_1 (Pull #2002) Starting in urllib3 v2.0: Connections that receive a DeprecationWarning will fail
  • Deprecated Retry options Retry.DEFAULT_METHOD_WHITELIST, Retry.DEFAULT_REDIRECT_HEADERS_BLACKLIST and Retry(method_whitelist=...) in favor of Retry.DEFAULT_ALLOWED_METHODS, Retry.DEFAULT_REMOVE_HEADERS_ON_REDIRECT, and Retry(allowed_methods=...) (Pull #2000) Starting in urllib3 v2.0: Deprecated options will be removed
  • Added default User-Agent header to every request (Pull #1750)
  • Added urllib3.util.SKIP_HEADER for skipping User-Agent, Accept-Encoding, and Host headers from being automatically emitted with requests (Pull #2018)
  • Collapse transfer-encoding: chunked request data and framing into the same socket.send() call (Pull #1906)
  • Send http/1.1 ALPN identifier with every TLS handshake by default (Pull #1894)
  • Properly terminate SecureTransport connections when CA verification fails (Pull #1977)
  • Don't emit an SNIMissingWarning when passing server_hostname=None to SecureTransport (Pull #1903)
  • Disabled requesting TLSv1.2 session tickets as they weren't being used by urllib3 (Pull #1970)
  • Suppress BrokenPipeError when writing request body after the server has closed the socket (Pull #1524)
  • Wrap ssl.SSLError that can be raised from reading a socket (e.g. "bad MAC") into an urllib3.exceptions.SSLError (Pull #1939)

1.25.11 (2020-10-19)

  • Fix retry backoff time parsed from Retry-After header when given in the HTTP date format. The HTTP date was parsed as the local timezone rather than accounting for the timezone in the HTTP date (typically UTC) (Pull #1932, Pull #1935, Pull #1938, Pull #1949)
  • Fix issue where an error would be raised when the SSLKEYLOGFILE environment variable was set to the empty string. Now SSLContext.keylog_file is not set in this situation (Pull #2016)

1.25.10 (2020-07-22)

  • Added support for SSLKEYLOGFILE environment variable for logging TLS session keys with use with programs like Wireshark for decrypting captured web traffic (Pull #1867)
  • Fixed loading of SecureTransport libraries on macOS Big Sur due to the new dynamic linker cache (Pull #1905)
  • Collapse chunked request bodies data and framing into one call to send() to reduce the number of TCP packets by 2-4x (Pull #1906)
  • Don't insert None into ConnectionPool if the pool was empty when requesting a connection (Pull #1866)
  • Avoid hasattr call in BrotliDecoder.decompress() (Pull #1858)

1.25.9 (2020-04-16)

  • Added InvalidProxyConfigurationWarning which is raised when erroneously specifying an HTTPS proxy URL. urllib3 doesn't currently support connecting to HTTPS proxies but will soon be able to and we would like users to migrate properly without much breakage.

    See this GitHub issue for more information on how to fix your proxy config. (Pull #1851)

  • Drain connection after PoolManager redirect (Pull #1817)

Commits
  • dd00949 Release 1.26.2
  • 1db71ae [1.26] Import features from ssl module with more granularity
  • 969fd39 Release 1.26.1
  • f4464f7 [1.26] Don't send 'User-Agent' twice if header is binary
  • d2e3d03 Add back the HTTPHeaderDict import from 1.25.x
  • ddb8c96 Release: 1.26.0
  • ec8b438 Remove type stubs from 1.26 branch
  • ce16b21 Improve readability on return handling logic.
  • 6fc17a3 Fix constructor parameter order in SSLTransport.
  • 6dc3b68 Skip TLS versions if disabled by OpenSSL config
  • Additional commits viewable in compare view

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