Fixed issue where InsecureRequestWarning was emitted for HTTPS connections when using Emscripten. (#​3331 <https://github.com/urllib3/urllib3/issues/3331>__)
Fixed HTTPConnectionPool.urlopen to stop automatically casting non-proxy headers to HTTPHeaderDict. This change was premature as it did not apply to proxy headers and HTTPHeaderDict does not handle byte header values correctly yet. (#​3343 <https://github.com/urllib3/urllib3/issues/3343>__)
Changed InvalidChunkLength to ProtocolError when response terminates before the chunk length is sent. (#​2860 <https://github.com/urllib3/urllib3/issues/2860>__)
Changed ProtocolError to be more verbose on incomplete reads with excess content. (#​3261 <https://github.com/urllib3/urllib3/issues/3261>__)
Added support for Emscripten and Pyodide <https://urllib3.readthedocs.io/en/latest/reference/contrib/emscripten.html>, including streaming support in cross-origin isolated browser environments where threading is enabled. (#​2951 <https://github.com/urllib3/urllib3/issues/2951>)
Added support for HTTPResponse.read1() method. (#​3186 <https://github.com/urllib3/urllib3/issues/3186>__)
Added rudimentary support for HTTP/2. (#​3284 <https://github.com/urllib3/urllib3/issues/3284>__)
Fixed issue where requests against urls with trailing dots were failing due to SSL errors
when using proxy. (#​2244 <https://github.com/urllib3/urllib3/issues/2244>__)
Fixed HTTPConnection.proxy_is_verified and HTTPSConnection.proxy_is_verified
to be always set to a boolean after connecting to a proxy. It could be None in some cases previously. (#​3130 <https://github.com/urllib3/urllib3/issues/3130>__)
Fixed an issue where headers passed in a request with json= would be mutated (#​3203 <https://github.com/urllib3/urllib3/issues/3203>__)
Fixed HTTPSConnection.is_verified to be set to False when connecting
from a HTTPS proxy to an HTTP target. It was set to True previously. (#​3267 <https://github.com/urllib3/urllib3/issues/3267>__)
Fixed handling of new error message from OpenSSL 3.2.0 when configuring an HTTP proxy as HTTPS (#​3268 <https://github.com/urllib3/urllib3/issues/3268>__)
Fixed TLS 1.3 post-handshake auth when the server certificate validation is disabled (#​3325 <https://github.com/urllib3/urllib3/issues/3325>__)
Note for downstream distributors: To run integration tests, you now need to run the tests a second
time with the --integration pytest flag. (#​3181 <https://github.com/urllib3/urllib3/issues/3181>__)
Added the Cookie header to the list of headers to strip from requests when redirecting to a different host. As before, different headers can be set via Retry.remove_headers_on_redirect.
Allowed pyOpenSSL third-party module without any deprecation warning. (#​3126 <https://github.com/urllib3/urllib3/issues/3126>__)
Fixed default blocksize of HTTPConnection classes to match high-level classes. Previously was 8KiB, now 16KiB. (#​3066 <https://github.com/urllib3/urllib3/issues/3066>__)
Added support for union operators to HTTPHeaderDict (#​2254 <https://github.com/urllib3/urllib3/issues/2254>__)
Added BaseHTTPResponse to urllib3.__all__ (#​3078 <https://github.com/urllib3/urllib3/issues/3078>__)
Fixed urllib3.connection.HTTPConnection to raise the http.client.connect audit event to have the same behavior as the standard library HTTP client (#​2757 <https://github.com/urllib3/urllib3/issues/2757>__)
Relied on the standard library for checking hostnames in supported PyPy releases (#​3087 <https://github.com/urllib3/urllib3/issues/3087>__)
Allowed alternative SSL libraries such as LibreSSL, while still issuing a warning as we cannot help users facing issues with implementations other than OpenSSL. (#​3020 <https://github.com/urllib3/urllib3/issues/3020>__)
Deprecated URLs which don't have an explicit scheme (#​2950 <https://github.com/urllib3/urllib3/pull/2950>_)
Fixed response decoding with Zstandard when compressed data is made of several frames. (#​3008 <https://github.com/urllib3/urllib3/issues/3008>__)
Fixed assert_hostname=False to correctly skip hostname check. (#​3051 <https://github.com/urllib3/urllib3/issues/3051>__)
Fixed HTTPResponse.stream() to continue yielding bytes if buffered decompressed data
was still available to be read even if the underlying socket is closed. This prevents
a compressed response from being truncated. (#​3009 <https://github.com/urllib3/urllib3/issues/3009>__)
Fixed a socket leak when fingerprint or hostname verifications fail. (#​2991 <https://github.com/urllib3/urllib3/issues/2991>__)
Fixed an error when HTTPResponse.read(0) was the first read call or when the internal response body buffer was otherwise empty. (#​2998 <https://github.com/urllib3/urllib3/issues/2998>__)
Read the v2.0 migration guide <https://urllib3.readthedocs.io/en/latest/v2-migration-guide.html>__ for help upgrading to the latest version of urllib3.
Removed
Removed support for Python 2.7, 3.5, and 3.6 (#​883 <https://github.com/urllib3/urllib3/issues/883>, #​2336 <https://github.com/urllib3/urllib3/issues/2336>).
Removed fallback on certificate commonName in match_hostname() function.
This behavior was deprecated in May 2000 in RFC 2818. Instead only subjectAltName
is used to verify the hostname by default. To enable verifying the hostname against commonName use SSLContext.hostname_checks_common_name = True (#​2113 <https://github.com/urllib3/urllib3/issues/2113>__).
Removed support for Python with an ssl module compiled with LibreSSL, CiscoSSL,
wolfSSL, and all other OpenSSL alternatives. Python is moving to require OpenSSL with PEP 644 (#​2168 <https://github.com/urllib3/urllib3/issues/2168>__).
Removed support for OpenSSL versions earlier than 1.1.1 or that don't have SNI support.
When an incompatible OpenSSL version is detected an ImportError is raised (#​2168 <https://github.com/urllib3/urllib3/issues/2168>__).
Removed the list of default ciphers for OpenSSL 1.1.1+ and SecureTransport as their own defaults are already secure (#​2082 <https://github.com/urllib3/urllib3/issues/2082>__).
Removed urllib3.contrib.appengine.AppEngineManager and support for Google App Engine Standard Environment (#​2044 <https://github.com/urllib3/urllib3/issues/2044>__).
Removed default value of None for the request_context parameter of urllib3.PoolManager.connection_from_pool_key. This change should have no effect on users as the default value of None was an invalid option and was never used (#​1897 <https://github.com/urllib3/urllib3/issues/1897>__).
Removed the urllib3.request module. urllib3.request.RequestMethods has been made a private API.
This change was made to ensure that from urllib3 import request imported the top-level request()
function instead of the urllib3.request module (#​2269 <https://github.com/urllib3/urllib3/issues/2269>__).
Removed support for SSLv3.0 from the urllib3.contrib.pyopenssl even when support is available from the compiled OpenSSL library (#​2233 <https://github.com/urllib3/urllib3/issues/2233>__).
Removed the deprecated urllib3.contrib.ntlmpool module (#​2339 <https://github.com/urllib3/urllib3/issues/2339>__).
Removed DEFAULT_CIPHERS, HAS_SNI, USE_DEFAULT_SSLCONTEXT_CIPHERS, from the private module urllib3.util.ssl_ (#​2168 <https://github.com/urllib3/urllib3/issues/2168>__).
Removed the _prepare_conn method from HTTPConnectionPool. Previously this was only used to call HTTPSConnection.set_cert() by HTTPSConnectionPool (#​1985 <https://github.com/urllib3/urllib3/issues/1985>__).
Removed tls_in_tls_required property from HTTPSConnection. This is now determined from the scheme parameter in HTTPConnection.set_tunnel() (#​1985 <https://github.com/urllib3/urllib3/issues/1985>__).
Removed the strict parameter/attribute from HTTPConnection, HTTPSConnection, HTTPConnectionPool, HTTPSConnectionPool, and HTTPResponse (#​2064 <https://github.com/urllib3/urllib3/issues/2064>__).
Deprecated
Deprecated HTTPResponse.getheaders() and HTTPResponse.getheader() which will be removed in urllib3 v2.1.0. Instead use HTTPResponse.headers and HTTPResponse.headers.get(name, default). (#​1543 <https://github.com/urllib3/urllib3/issues/1543>, #​2814 <https://github.com/urllib3/urllib3/issues/2814>).
Deprecated urllib3.contrib.pyopenssl module which will be removed in urllib3 v2.1.0 (#​2691 <https://github.com/urllib3/urllib3/issues/2691>__).
Deprecated urllib3.contrib.securetransport module which will be removed in urllib3 v2.1.0 (#​2692 <https://github.com/urllib3/urllib3/issues/2692>__).
Deprecated ssl_version option in favor of ssl_minimum_version. ssl_version will be removed in urllib3 v2.1.0 (#​2110 <https://github.com/urllib3/urllib3/issues/2110>__).
Deprecated the strict parameter of PoolManager.connection_from_context() as it's not longer needed in Python 3.x. It will be removed in urllib3 v2.1.0 (#​2267 <https://github.com/urllib3/urllib3/issues/2267>__)
Deprecated the NewConnectionError.pool attribute which will be removed in urllib3 v2.1.0 (#​2271 <https://github.com/urllib3/urllib3/issues/2271>__).
Deprecated format_header_param_html5 and format_header_param in favor of format_multipart_header_param (#​2257 <https://github.com/urllib3/urllib3/issues/2257>__).
Deprecated RequestField.header_formatter parameter which will be removed in urllib3 v2.1.0 (#​2257 <https://github.com/urllib3/urllib3/issues/2257>__).
Deprecated HTTPSConnection.set_cert() method. Instead pass parameters to the HTTPSConnection constructor (#​1985 <https://github.com/urllib3/urllib3/issues/1985>__).
Deprecated HTTPConnection.request_chunked() method which will be removed in urllib3 v2.1.0. Instead pass chunked=True to HTTPConnection.request() (#​1985 <https://github.com/urllib3/urllib3/issues/1985>__).
Added
Added top-level urllib3.request function which uses a preconfigured module-global PoolManager instance (#​2150 <https://github.com/urllib3/urllib3/issues/2150>__).
Added the json parameter to urllib3.request(), PoolManager.request(), and ConnectionPool.request() methods to send JSON bodies in requests. Using this parameter will set the header Content-Type: application/json if Content-Type isn't already defined.
Added support for parsing JSON response bodies with HTTPResponse.json() method (#​2243 <https://github.com/urllib3/urllib3/issues/2243>__).
Added type hints to the urllib3 module (#​1897 <https://github.com/urllib3/urllib3/issues/1897>__).
Added ssl_minimum_version and ssl_maximum_version options which set SSLContext.minimum_version and SSLContext.maximum_version (#​2110 <https://github.com/urllib3/urllib3/issues/2110>__).
Added support for Zstandard (RFC 8878) when zstandard 1.18.0 or later is installed.
Added the zstd extra which installs the zstandard package (#​1992 <https://github.com/urllib3/urllib3/issues/1992>__).
Added urllib3.response.BaseHTTPResponse class. All future response classes will be subclasses of BaseHTTPResponse (#​2083 <https://github.com/urllib3/urllib3/issues/2083>__).
Added FullPoolError which is raised when PoolManager(block=True) and a connection is returned to a full pool (#​2197 <https://github.com/urllib3/urllib3/issues/2197>__).
Added HTTPHeaderDict to the top-level urllib3 namespace (#​2216 <https://github.com/urllib3/urllib3/issues/2216>__).
Added support for configuring header merging behavior with HTTPHeaderDict
When using a HTTPHeaderDict to provide headers for a request, by default duplicate
header values will be repeated. But if combine=True is passed into a call to HTTPHeaderDict.add, then the added header value will be merged in with an existing
value into a comma-separated list (X-My-Header: foo, bar) (#​2242 <https://github.com/urllib3/urllib3/issues/2242>__).
Added NameResolutionError exception when a DNS error occurs (#​2305 <https://github.com/urllib3/urllib3/issues/2305>__).
Added proxy_assert_hostname and proxy_assert_fingerprint kwargs to ProxyManager (#​2409 <https://github.com/urllib3/urllib3/issues/2409>__).
Added a configurable backoff_max parameter to the Retry class.
If a custom backoff_max is provided to the Retry class, it
will replace the Retry.DEFAULT_BACKOFF_MAX (#​2494 <https://github.com/urllib3/urllib3/issues/2494>__).
Added the authority property to the Url class as per RFC 3986 3.2. This property should be used in place of netloc for users who want to include the userinfo (auth) component of the URI (#​2520 <https://github.com/urllib3/urllib3/issues/2520>__).
Added the scheme parameter to HTTPConnection.set_tunnel to configure the scheme of the origin being tunnelled to (#​1985 <https://github.com/urllib3/urllib3/issues/1985>__).
Added the is_closed, is_connected and has_connected_to_proxy properties to HTTPConnection (#​1985 <https://github.com/urllib3/urllib3/issues/1985>__).
Added optional backoff_jitter parameter to Retry. (#​2952 <https://github.com/urllib3/urllib3/issues/2952>__)
Changed
Changed urllib3.response.HTTPResponse.read to respect the semantics of io.BufferedIOBase regardless of compression. Specifically, this method:
Only returns an empty bytes object to indicate EOF (that is, the response has been fully consumed).
Never returns more bytes than requested.
Can issue any number of system calls: zero, one or multiple.
If you want each urllib3.response.HTTPResponse.read call to issue a single system call, you need to disable decompression by setting decode_content=False (#​2128 <https://github.com/urllib3/urllib3/issues/2128>__).
Changed urllib3.HTTPConnection.getresponse to return an instance of urllib3.HTTPResponse instead of http.client.HTTPResponse (#​2648 <https://github.com/urllib3/urllib3/issues/2648>__).
Changed ssl_version to instead set the corresponding SSLContext.minimum_version
and SSLContext.maximum_version values. Regardless of ssl_version passed SSLContext objects are now constructed using ssl.PROTOCOL_TLS_CLIENT (#​2110 <https://github.com/urllib3/urllib3/issues/2110>__).
Changed default SSLContext.minimum_version to be TLSVersion.TLSv1_2 in line with Python 3.10 (#​2373 <https://github.com/urllib3/urllib3/issues/2373>__).
Changed ProxyError to wrap any connection error (timeout, TLS, DNS) that occurs when connecting to the proxy (#​2482 <https://github.com/urllib3/urllib3/pull/2482>__).
Changed urllib3.util.create_urllib3_context to not override the system cipher suites with
a default value. The new default will be cipher suites configured by the operating system (#​2168 <https://github.com/urllib3/urllib3/issues/2168>__).
Changed multipart/form-data header parameter formatting matches the WHATWG HTML Standard as of 2021-06-10. Control characters in filenames are no longer percent encoded (#​2257 <https://github.com/urllib3/urllib3/issues/2257>__).
Changed the error raised when connecting via HTTPS when the ssl module isn't available from SSLError to ImportError (#​2589 <https://github.com/urllib3/urllib3/issues/2589>__).
Changed HTTPConnection.request() to always use lowercase chunk boundaries when sending requests with Transfer-Encoding: chunked (#​2515 <https://github.com/urllib3/urllib3/issues/2515>__).
Changed enforce_content_length default to True, preventing silent data loss when reading streamed responses (#​2514 <https://github.com/urllib3/urllib3/issues/2514>__).
Changed internal implementation of HTTPHeaderDict to use dict instead of collections.OrderedDict for better performance (#​2080 <https://github.com/urllib3/urllib3/issues/2080>__).
Changed the urllib3.contrib.pyopenssl module to wrap OpenSSL.SSL.Error with ssl.SSLError in PyOpenSSLContext.load_cert_chain (#​2628 <https://github.com/urllib3/urllib3/issues/2628>__).
Changed usage of the deprecated socket.error to OSError (#​2120 <https://github.com/urllib3/urllib3/issues/2120>__).
Changed all parameters in the HTTPConnection and HTTPSConnection constructors to be keyword-only except host and port (#​1985 <https://github.com/urllib3/urllib3/issues/1985>__).
Changed HTTPConnection.getresponse() to set the socket timeout from HTTPConnection.timeout value before reading
data from the socket. This previously was done manually by the HTTPConnectionPool calling HTTPConnection.sock.settimeout(...) (#​1985 <https://github.com/urllib3/urllib3/issues/1985>__).
Changed the _proxy_host property to _tunnel_host in HTTPConnectionPool to more closely match how the property is used (value in HTTPConnection.set_tunnel()) (#​1985 <https://github.com/urllib3/urllib3/issues/1985>__).
Changed name of Retry.BACK0FF_MAX to be Retry.DEFAULT_BACKOFF_MAX.
Changed TLS handshakes to use SSLContext.check_hostname when possible (#​2452 <https://github.com/urllib3/urllib3/pull/2452>__).
Changed server_hostname to behave like other parameters only used by HTTPSConnectionPool (#​2537 <https://github.com/urllib3/urllib3/pull/2537>__).
Changed the default blocksize to 16KB to match OpenSSL's default read amounts (#​2348 <https://github.com/urllib3/urllib3/pull/2348>__).
Changed HTTPResponse.read() to raise an error when calling with decode_content=False after using decode_content=True to prevent data loss (#​2800 <https://github.com/urllib3/urllib3/issues/2800>__).
Fixed
Fixed thread-safety issue where accessing a PoolManager with many distinct origins would cause connection pools to be closed while requests are in progress (#​1252 <https://github.com/urllib3/urllib3/issues/1252>__).
Fixed an issue where an HTTPConnection instance would erroneously reuse the socket read timeout value from reading the previous response instead of a newly configured connect timeout.
Instead now if HTTPConnection.timeout is updated before sending the next request the new timeout value will be used (#​2645 <https://github.com/urllib3/urllib3/issues/2645>__).
Fixed socket.error.errno when raised from pyOpenSSL's OpenSSL.SSL.SysCallError (#​2118 <https://github.com/urllib3/urllib3/issues/2118>__).
Fixed the default value of HTTPSConnection.socket_options to match HTTPConnection (#​2213 <https://github.com/urllib3/urllib3/issues/2213>__).
Fixed a bug where headers would be modified by the remove_headers_on_redirect feature (#​2272 <https://github.com/urllib3/urllib3/issues/2272>__).
Fixed a reference cycle bug in urllib3.util.connection.create_connection() (#​2277 <https://github.com/urllib3/urllib3/issues/2277>__).
Fixed a socket leak if HTTPConnection.connect() fails (#​2571 <https://github.com/urllib3/urllib3/pull/2571>__).
Fixed urllib3.contrib.pyopenssl.WrappedSocket and urllib3.contrib.securetransport.WrappedSocket close methods (#​2970 <https://github.com/urllib3/urllib3/issues/2970>__)
Configuration
📅Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).
🚦Automerge: Disabled by config. Please merge this manually once you are satisfied.
♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.
🔕Ignore: Close this PR and you won't be reminded about this update again.
If you want to rebase/retry this PR, check this box
This PR contains the following updates:
| Package | Update | Change |
|---|---|---|
| [urllib3](https://github.com/urllib3/urllib3) ([changelog](https://github.com/urllib3/urllib3/blob/main/CHANGES.rst)) | major | `==1.26.18` -> `==2.2.1` |
---
### Release Notes
<details>
<summary>urllib3/urllib3 (urllib3)</summary>
### [`v2.2.1`](https://github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#221-2024-02-16)
[Compare Source](https://github.com/urllib3/urllib3/compare/2.2.0...2.2.1)
\==================
- Fixed issue where `InsecureRequestWarning` was emitted for HTTPS connections when using Emscripten. (`#​3331 <https://github.com/urllib3/urllib3/issues/3331>`\__)
- Fixed `HTTPConnectionPool.urlopen` to stop automatically casting non-proxy headers to `HTTPHeaderDict`. This change was premature as it did not apply to proxy headers and `HTTPHeaderDict` does not handle byte header values correctly yet. (`#​3343 <https://github.com/urllib3/urllib3/issues/3343>`\__)
- Changed `InvalidChunkLength` to `ProtocolError` when response terminates before the chunk length is sent. (`#​2860 <https://github.com/urllib3/urllib3/issues/2860>`\__)
- Changed `ProtocolError` to be more verbose on incomplete reads with excess content. (`#​3261 <https://github.com/urllib3/urllib3/issues/3261>`\__)
### [`v2.2.0`](https://github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#220-2024-01-30)
[Compare Source](https://github.com/urllib3/urllib3/compare/2.1.0...2.2.0)
\==================
- Added support for `Emscripten and Pyodide <https://urllib3.readthedocs.io/en/latest/reference/contrib/emscripten.html>`**, including streaming support in cross-origin isolated browser environments where threading is enabled. (`#​2951 <https://github.com/urllib3/urllib3/issues/2951>`**)
- Added support for `HTTPResponse.read1()` method. (`#​3186 <https://github.com/urllib3/urllib3/issues/3186>`\__)
- Added rudimentary support for HTTP/2. (`#​3284 <https://github.com/urllib3/urllib3/issues/3284>`\__)
- Fixed issue where requests against urls with trailing dots were failing due to SSL errors
when using proxy. (`#​2244 <https://github.com/urllib3/urllib3/issues/2244>`\__)
- Fixed `HTTPConnection.proxy_is_verified` and `HTTPSConnection.proxy_is_verified`
to be always set to a boolean after connecting to a proxy. It could be
`None` in some cases previously. (`#​3130 <https://github.com/urllib3/urllib3/issues/3130>`\__)
- Fixed an issue where `headers` passed in a request with `json=` would be mutated (`#​3203 <https://github.com/urllib3/urllib3/issues/3203>`\__)
- Fixed `HTTPSConnection.is_verified` to be set to `False` when connecting
from a HTTPS proxy to an HTTP target. It was set to `True` previously. (`#​3267 <https://github.com/urllib3/urllib3/issues/3267>`\__)
- Fixed handling of new error message from OpenSSL 3.2.0 when configuring an HTTP proxy as HTTPS (`#​3268 <https://github.com/urllib3/urllib3/issues/3268>`\__)
- Fixed TLS 1.3 post-handshake auth when the server certificate validation is disabled (`#​3325 <https://github.com/urllib3/urllib3/issues/3325>`\__)
- Note for downstream distributors: To run integration tests, you now need to run the tests a second
time with the `--integration` pytest flag. (`#​3181 <https://github.com/urllib3/urllib3/issues/3181>`\__)
### [`v2.1.0`](https://github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#210-2023-11-13)
[Compare Source](https://github.com/urllib3/urllib3/compare/2.0.7...2.1.0)
\==================
- Removed support for the deprecated urllib3\[secure] extra. (`#​2680 <https://github.com/urllib3/urllib3/issues/2680>`\__)
- Removed support for the deprecated SecureTransport TLS implementation. (`#​2681 <https://github.com/urllib3/urllib3/issues/2681>`\__)
- Removed support for the end-of-life Python 3.7. (`#​3143 <https://github.com/urllib3/urllib3/issues/3143>`\__)
- Allowed loading CA certificates from memory for proxies. (`#​3065 <https://github.com/urllib3/urllib3/issues/3065>`\__)
- Fixed decoding Gzip-encoded responses which specified `x-gzip` content-encoding. (`#​3174 <https://github.com/urllib3/urllib3/issues/3174>`\__)
### [`v2.0.7`](https://github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#207-2023-10-17)
[Compare Source](https://github.com/urllib3/urllib3/compare/2.0.6...2.0.7)
\==================
- Made body stripped from HTTP requests changing the request method to GET after HTTP 303 "See Other" redirect responses.
### [`v2.0.6`](https://github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#206-2023-10-02)
[Compare Source](https://github.com/urllib3/urllib3/compare/v2.0.5...2.0.6)
\==================
- Added the `Cookie` header to the list of headers to strip from requests when redirecting to a different host. As before, different headers can be set via `Retry.remove_headers_on_redirect`.
### [`v2.0.5`](https://github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#205-2023-09-20)
[Compare Source](https://github.com/urllib3/urllib3/compare/2.0.4...v2.0.5)
\==================
- Allowed pyOpenSSL third-party module without any deprecation warning. (`#​3126 <https://github.com/urllib3/urllib3/issues/3126>`\__)
- Fixed default `blocksize` of `HTTPConnection` classes to match high-level classes. Previously was 8KiB, now 16KiB. (`#​3066 <https://github.com/urllib3/urllib3/issues/3066>`\__)
### [`v2.0.4`](https://github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#204-2023-07-19)
[Compare Source](https://github.com/urllib3/urllib3/compare/2.0.3...2.0.4)
\==================
- Added support for union operators to `HTTPHeaderDict` (`#​2254 <https://github.com/urllib3/urllib3/issues/2254>`\__)
- Added `BaseHTTPResponse` to `urllib3.__all__` (`#​3078 <https://github.com/urllib3/urllib3/issues/3078>`\__)
- Fixed `urllib3.connection.HTTPConnection` to raise the `http.client.connect` audit event to have the same behavior as the standard library HTTP client (`#​2757 <https://github.com/urllib3/urllib3/issues/2757>`\__)
- Relied on the standard library for checking hostnames in supported PyPy releases (`#​3087 <https://github.com/urllib3/urllib3/issues/3087>`\__)
### [`v2.0.3`](https://github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#203-2023-06-07)
[Compare Source](https://github.com/urllib3/urllib3/compare/2.0.2...2.0.3)
\==================
- Allowed alternative SSL libraries such as LibreSSL, while still issuing a warning as we cannot help users facing issues with implementations other than OpenSSL. (`#​3020 <https://github.com/urllib3/urllib3/issues/3020>`\__)
- Deprecated URLs which don't have an explicit scheme (`#​2950 <https://github.com/urllib3/urllib3/pull/2950>`\_)
- Fixed response decoding with Zstandard when compressed data is made of several frames. (`#​3008 <https://github.com/urllib3/urllib3/issues/3008>`\__)
- Fixed `assert_hostname=False` to correctly skip hostname check. (`#​3051 <https://github.com/urllib3/urllib3/issues/3051>`\__)
### [`v2.0.2`](https://github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#202-2023-05-03)
[Compare Source](https://github.com/urllib3/urllib3/compare/2.0.1...2.0.2)
\==================
- Fixed `HTTPResponse.stream()` to continue yielding bytes if buffered decompressed data
was still available to be read even if the underlying socket is closed. This prevents
a compressed response from being truncated. (`#​3009 <https://github.com/urllib3/urllib3/issues/3009>`\__)
### [`v2.0.1`](https://github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#201-2023-04-30)
[Compare Source](https://github.com/urllib3/urllib3/compare/2.0.0...2.0.1)
\==================
- Fixed a socket leak when fingerprint or hostname verifications fail. (`#​2991 <https://github.com/urllib3/urllib3/issues/2991>`\__)
- Fixed an error when `HTTPResponse.read(0)` was the first `read` call or when the internal response body buffer was otherwise empty. (`#​2998 <https://github.com/urllib3/urllib3/issues/2998>`\__)
### [`v2.0.0`](https://github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#200-2023-04-26)
[Compare Source](https://github.com/urllib3/urllib3/compare/1.26.18...2.0.0)
\==================
Read the `v2.0 migration guide <https://urllib3.readthedocs.io/en/latest/v2-migration-guide.html>`\__ for help upgrading to the latest version of urllib3.
## Removed
- Removed support for Python 2.7, 3.5, and 3.6 (`#​883 <https://github.com/urllib3/urllib3/issues/883>`**, `#​2336 <https://github.com/urllib3/urllib3/issues/2336>`**).
- Removed fallback on certificate `commonName` in `match_hostname()` function.
This behavior was deprecated in May 2000 in RFC 2818. Instead only `subjectAltName`
is used to verify the hostname by default. To enable verifying the hostname against
`commonName` use `SSLContext.hostname_checks_common_name = True` (`#​2113 <https://github.com/urllib3/urllib3/issues/2113>`\__).
- Removed support for Python with an `ssl` module compiled with LibreSSL, CiscoSSL,
wolfSSL, and all other OpenSSL alternatives. Python is moving to require OpenSSL with PEP 644 (`#​2168 <https://github.com/urllib3/urllib3/issues/2168>`\__).
- Removed support for OpenSSL versions earlier than 1.1.1 or that don't have SNI support.
When an incompatible OpenSSL version is detected an `ImportError` is raised (`#​2168 <https://github.com/urllib3/urllib3/issues/2168>`\__).
- Removed the list of default ciphers for OpenSSL 1.1.1+ and SecureTransport as their own defaults are already secure (`#​2082 <https://github.com/urllib3/urllib3/issues/2082>`\__).
- Removed `urllib3.contrib.appengine.AppEngineManager` and support for Google App Engine Standard Environment (`#​2044 <https://github.com/urllib3/urllib3/issues/2044>`\__).
- Removed deprecated `Retry` options `method_whitelist`, `DEFAULT_REDIRECT_HEADERS_BLACKLIST` (`#​2086 <https://github.com/urllib3/urllib3/issues/2086>`\__).
- Removed `urllib3.HTTPResponse.from_httplib` (`#​2648 <https://github.com/urllib3/urllib3/issues/2648>`\__).
- Removed default value of `None` for the `request_context` parameter of `urllib3.PoolManager.connection_from_pool_key`. This change should have no effect on users as the default value of `None` was an invalid option and was never used (`#​1897 <https://github.com/urllib3/urllib3/issues/1897>`\__).
- Removed the `urllib3.request` module. `urllib3.request.RequestMethods` has been made a private API.
This change was made to ensure that `from urllib3 import request` imported the top-level `request()`
function instead of the `urllib3.request` module (`#​2269 <https://github.com/urllib3/urllib3/issues/2269>`\__).
- Removed support for SSLv3.0 from the `urllib3.contrib.pyopenssl` even when support is available from the compiled OpenSSL library (`#​2233 <https://github.com/urllib3/urllib3/issues/2233>`\__).
- Removed the deprecated `urllib3.contrib.ntlmpool` module (`#​2339 <https://github.com/urllib3/urllib3/issues/2339>`\__).
- Removed `DEFAULT_CIPHERS`, `HAS_SNI`, `USE_DEFAULT_SSLCONTEXT_CIPHERS`, from the private module `urllib3.util.ssl_` (`#​2168 <https://github.com/urllib3/urllib3/issues/2168>`\__).
- Removed `urllib3.exceptions.SNIMissingWarning` (`#​2168 <https://github.com/urllib3/urllib3/issues/2168>`\__).
- Removed the `_prepare_conn` method from `HTTPConnectionPool`. Previously this was only used to call `HTTPSConnection.set_cert()` by `HTTPSConnectionPool` (`#​1985 <https://github.com/urllib3/urllib3/issues/1985>`\__).
- Removed `tls_in_tls_required` property from `HTTPSConnection`. This is now determined from the `scheme` parameter in `HTTPConnection.set_tunnel()` (`#​1985 <https://github.com/urllib3/urllib3/issues/1985>`\__).
- Removed the `strict` parameter/attribute from `HTTPConnection`, `HTTPSConnection`, `HTTPConnectionPool`, `HTTPSConnectionPool`, and `HTTPResponse` (`#​2064 <https://github.com/urllib3/urllib3/issues/2064>`\__).
## Deprecated
- Deprecated `HTTPResponse.getheaders()` and `HTTPResponse.getheader()` which will be removed in urllib3 v2.1.0. Instead use `HTTPResponse.headers` and `HTTPResponse.headers.get(name, default)`. (`#​1543 <https://github.com/urllib3/urllib3/issues/1543>`**, `#​2814 <https://github.com/urllib3/urllib3/issues/2814>`**).
- Deprecated `urllib3.contrib.pyopenssl` module which will be removed in urllib3 v2.1.0 (`#​2691 <https://github.com/urllib3/urllib3/issues/2691>`\__).
- Deprecated `urllib3.contrib.securetransport` module which will be removed in urllib3 v2.1.0 (`#​2692 <https://github.com/urllib3/urllib3/issues/2692>`\__).
- Deprecated `ssl_version` option in favor of `ssl_minimum_version`. `ssl_version` will be removed in urllib3 v2.1.0 (`#​2110 <https://github.com/urllib3/urllib3/issues/2110>`\__).
- Deprecated the `strict` parameter of `PoolManager.connection_from_context()` as it's not longer needed in Python 3.x. It will be removed in urllib3 v2.1.0 (`#​2267 <https://github.com/urllib3/urllib3/issues/2267>`\__)
- Deprecated the `NewConnectionError.pool` attribute which will be removed in urllib3 v2.1.0 (`#​2271 <https://github.com/urllib3/urllib3/issues/2271>`\__).
- Deprecated `format_header_param_html5` and `format_header_param` in favor of `format_multipart_header_param` (`#​2257 <https://github.com/urllib3/urllib3/issues/2257>`\__).
- Deprecated `RequestField.header_formatter` parameter which will be removed in urllib3 v2.1.0 (`#​2257 <https://github.com/urllib3/urllib3/issues/2257>`\__).
- Deprecated `HTTPSConnection.set_cert()` method. Instead pass parameters to the `HTTPSConnection` constructor (`#​1985 <https://github.com/urllib3/urllib3/issues/1985>`\__).
- Deprecated `HTTPConnection.request_chunked()` method which will be removed in urllib3 v2.1.0. Instead pass `chunked=True` to `HTTPConnection.request()` (`#​1985 <https://github.com/urllib3/urllib3/issues/1985>`\__).
## Added
- Added top-level `urllib3.request` function which uses a preconfigured module-global `PoolManager` instance (`#​2150 <https://github.com/urllib3/urllib3/issues/2150>`\__).
- Added the `json` parameter to `urllib3.request()`, `PoolManager.request()`, and `ConnectionPool.request()` methods to send JSON bodies in requests. Using this parameter will set the header `Content-Type: application/json` if `Content-Type` isn't already defined.
Added support for parsing JSON response bodies with `HTTPResponse.json()` method (`#​2243 <https://github.com/urllib3/urllib3/issues/2243>`\__).
- Added type hints to the `urllib3` module (`#​1897 <https://github.com/urllib3/urllib3/issues/1897>`\__).
- Added `ssl_minimum_version` and `ssl_maximum_version` options which set
`SSLContext.minimum_version` and `SSLContext.maximum_version` (`#​2110 <https://github.com/urllib3/urllib3/issues/2110>`\__).
- Added support for Zstandard (RFC 8878) when `zstandard` 1.18.0 or later is installed.
Added the `zstd` extra which installs the `zstandard` package (`#​1992 <https://github.com/urllib3/urllib3/issues/1992>`\__).
- Added `urllib3.response.BaseHTTPResponse` class. All future response classes will be subclasses of `BaseHTTPResponse` (`#​2083 <https://github.com/urllib3/urllib3/issues/2083>`\__).
- Added `FullPoolError` which is raised when `PoolManager(block=True)` and a connection is returned to a full pool (`#​2197 <https://github.com/urllib3/urllib3/issues/2197>`\__).
- Added `HTTPHeaderDict` to the top-level `urllib3` namespace (`#​2216 <https://github.com/urllib3/urllib3/issues/2216>`\__).
- Added support for configuring header merging behavior with HTTPHeaderDict
When using a `HTTPHeaderDict` to provide headers for a request, by default duplicate
header values will be repeated. But if `combine=True` is passed into a call to
`HTTPHeaderDict.add`, then the added header value will be merged in with an existing
value into a comma-separated list (`X-My-Header: foo, bar`) (`#​2242 <https://github.com/urllib3/urllib3/issues/2242>`\__).
- Added `NameResolutionError` exception when a DNS error occurs (`#​2305 <https://github.com/urllib3/urllib3/issues/2305>`\__).
- Added `proxy_assert_hostname` and `proxy_assert_fingerprint` kwargs to `ProxyManager` (`#​2409 <https://github.com/urllib3/urllib3/issues/2409>`\__).
- Added a configurable `backoff_max` parameter to the `Retry` class.
If a custom `backoff_max` is provided to the `Retry` class, it
will replace the `Retry.DEFAULT_BACKOFF_MAX` (`#​2494 <https://github.com/urllib3/urllib3/issues/2494>`\__).
- Added the `authority` property to the Url class as per RFC 3986 3.2. This property should be used in place of `netloc` for users who want to include the userinfo (auth) component of the URI (`#​2520 <https://github.com/urllib3/urllib3/issues/2520>`\__).
- Added the `scheme` parameter to `HTTPConnection.set_tunnel` to configure the scheme of the origin being tunnelled to (`#​1985 <https://github.com/urllib3/urllib3/issues/1985>`\__).
- Added the `is_closed`, `is_connected` and `has_connected_to_proxy` properties to `HTTPConnection` (`#​1985 <https://github.com/urllib3/urllib3/issues/1985>`\__).
- Added optional `backoff_jitter` parameter to `Retry`. (`#​2952 <https://github.com/urllib3/urllib3/issues/2952>`\__)
## Changed
- Changed `urllib3.response.HTTPResponse.read` to respect the semantics of `io.BufferedIOBase` regardless of compression. Specifically, this method:
- Only returns an empty bytes object to indicate EOF (that is, the response has been fully consumed).
- Never returns more bytes than requested.
- Can issue any number of system calls: zero, one or multiple.
If you want each `urllib3.response.HTTPResponse.read` call to issue a single system call, you need to disable decompression by setting `decode_content=False` (`#​2128 <https://github.com/urllib3/urllib3/issues/2128>`\__).
- Changed `urllib3.HTTPConnection.getresponse` to return an instance of `urllib3.HTTPResponse` instead of `http.client.HTTPResponse` (`#​2648 <https://github.com/urllib3/urllib3/issues/2648>`\__).
- Changed `ssl_version` to instead set the corresponding `SSLContext.minimum_version`
and `SSLContext.maximum_version` values. Regardless of `ssl_version` passed
`SSLContext` objects are now constructed using `ssl.PROTOCOL_TLS_CLIENT` (`#​2110 <https://github.com/urllib3/urllib3/issues/2110>`\__).
- Changed default `SSLContext.minimum_version` to be `TLSVersion.TLSv1_2` in line with Python 3.10 (`#​2373 <https://github.com/urllib3/urllib3/issues/2373>`\__).
- Changed `ProxyError` to wrap any connection error (timeout, TLS, DNS) that occurs when connecting to the proxy (`#​2482 <https://github.com/urllib3/urllib3/pull/2482>`\__).
- Changed `urllib3.util.create_urllib3_context` to not override the system cipher suites with
a default value. The new default will be cipher suites configured by the operating system (`#​2168 <https://github.com/urllib3/urllib3/issues/2168>`\__).
- Changed `multipart/form-data` header parameter formatting matches the WHATWG HTML Standard as of 2021-06-10. Control characters in filenames are no longer percent encoded (`#​2257 <https://github.com/urllib3/urllib3/issues/2257>`\__).
- Changed the error raised when connecting via HTTPS when the `ssl` module isn't available from `SSLError` to `ImportError` (`#​2589 <https://github.com/urllib3/urllib3/issues/2589>`\__).
- Changed `HTTPConnection.request()` to always use lowercase chunk boundaries when sending requests with `Transfer-Encoding: chunked` (`#​2515 <https://github.com/urllib3/urllib3/issues/2515>`\__).
- Changed `enforce_content_length` default to True, preventing silent data loss when reading streamed responses (`#​2514 <https://github.com/urllib3/urllib3/issues/2514>`\__).
- Changed internal implementation of `HTTPHeaderDict` to use `dict` instead of `collections.OrderedDict` for better performance (`#​2080 <https://github.com/urllib3/urllib3/issues/2080>`\__).
- Changed the `urllib3.contrib.pyopenssl` module to wrap `OpenSSL.SSL.Error` with `ssl.SSLError` in `PyOpenSSLContext.load_cert_chain` (`#​2628 <https://github.com/urllib3/urllib3/issues/2628>`\__).
- Changed usage of the deprecated `socket.error` to `OSError` (`#​2120 <https://github.com/urllib3/urllib3/issues/2120>`\__).
- Changed all parameters in the `HTTPConnection` and `HTTPSConnection` constructors to be keyword-only except `host` and `port` (`#​1985 <https://github.com/urllib3/urllib3/issues/1985>`\__).
- Changed `HTTPConnection.getresponse()` to set the socket timeout from `HTTPConnection.timeout` value before reading
data from the socket. This previously was done manually by the `HTTPConnectionPool` calling `HTTPConnection.sock.settimeout(...)` (`#​1985 <https://github.com/urllib3/urllib3/issues/1985>`\__).
- Changed the `_proxy_host` property to `_tunnel_host` in `HTTPConnectionPool` to more closely match how the property is used (value in `HTTPConnection.set_tunnel()`) (`#​1985 <https://github.com/urllib3/urllib3/issues/1985>`\__).
- Changed name of `Retry.BACK0FF_MAX` to be `Retry.DEFAULT_BACKOFF_MAX`.
- Changed TLS handshakes to use `SSLContext.check_hostname` when possible (`#​2452 <https://github.com/urllib3/urllib3/pull/2452>`\__).
- Changed `server_hostname` to behave like other parameters only used by `HTTPSConnectionPool` (`#​2537 <https://github.com/urllib3/urllib3/pull/2537>`\__).
- Changed the default `blocksize` to 16KB to match OpenSSL's default read amounts (`#​2348 <https://github.com/urllib3/urllib3/pull/2348>`\__).
- Changed `HTTPResponse.read()` to raise an error when calling with `decode_content=False` after using `decode_content=True` to prevent data loss (`#​2800 <https://github.com/urllib3/urllib3/issues/2800>`\__).
## Fixed
- Fixed thread-safety issue where accessing a `PoolManager` with many distinct origins would cause connection pools to be closed while requests are in progress (`#​1252 <https://github.com/urllib3/urllib3/issues/1252>`\__).
- Fixed an issue where an `HTTPConnection` instance would erroneously reuse the socket read timeout value from reading the previous response instead of a newly configured connect timeout.
Instead now if `HTTPConnection.timeout` is updated before sending the next request the new timeout value will be used (`#​2645 <https://github.com/urllib3/urllib3/issues/2645>`\__).
- Fixed `socket.error.errno` when raised from pyOpenSSL's `OpenSSL.SSL.SysCallError` (`#​2118 <https://github.com/urllib3/urllib3/issues/2118>`\__).
- Fixed the default value of `HTTPSConnection.socket_options` to match `HTTPConnection` (`#​2213 <https://github.com/urllib3/urllib3/issues/2213>`\__).
- Fixed a bug where `headers` would be modified by the `remove_headers_on_redirect` feature (`#​2272 <https://github.com/urllib3/urllib3/issues/2272>`\__).
- Fixed a reference cycle bug in `urllib3.util.connection.create_connection()` (`#​2277 <https://github.com/urllib3/urllib3/issues/2277>`\__).
- Fixed a socket leak if `HTTPConnection.connect()` fails (`#​2571 <https://github.com/urllib3/urllib3/pull/2571>`\__).
- Fixed `urllib3.contrib.pyopenssl.WrappedSocket` and `urllib3.contrib.securetransport.WrappedSocket` close methods (`#​2970 <https://github.com/urllib3/urllib3/issues/2970>`\__)
</details>
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This PR contains the following updates:
==1.26.18->==2.2.1Release Notes
urllib3/urllib3 (urllib3)
v2.2.1Compare Source
==================
InsecureRequestWarningwas emitted for HTTPS connections when using Emscripten. (#​3331 <https://github.com/urllib3/urllib3/issues/3331>__)HTTPConnectionPool.urlopento stop automatically casting non-proxy headers toHTTPHeaderDict. This change was premature as it did not apply to proxy headers andHTTPHeaderDictdoes not handle byte header values correctly yet. (#​3343 <https://github.com/urllib3/urllib3/issues/3343>__)InvalidChunkLengthtoProtocolErrorwhen response terminates before the chunk length is sent. (#​2860 <https://github.com/urllib3/urllib3/issues/2860>__)ProtocolErrorto be more verbose on incomplete reads with excess content. (#​3261 <https://github.com/urllib3/urllib3/issues/3261>__)v2.2.0Compare Source
==================
Emscripten and Pyodide <https://urllib3.readthedocs.io/en/latest/reference/contrib/emscripten.html>, including streaming support in cross-origin isolated browser environments where threading is enabled. (#​2951 <https://github.com/urllib3/urllib3/issues/2951>)HTTPResponse.read1()method. (#​3186 <https://github.com/urllib3/urllib3/issues/3186>__)#​3284 <https://github.com/urllib3/urllib3/issues/3284>__)when using proxy. (
#​2244 <https://github.com/urllib3/urllib3/issues/2244>__)HTTPConnection.proxy_is_verifiedandHTTPSConnection.proxy_is_verifiedto be always set to a boolean after connecting to a proxy. It could be
Nonein some cases previously. (#​3130 <https://github.com/urllib3/urllib3/issues/3130>__)headerspassed in a request withjson=would be mutated (#​3203 <https://github.com/urllib3/urllib3/issues/3203>__)HTTPSConnection.is_verifiedto be set toFalsewhen connectingfrom a HTTPS proxy to an HTTP target. It was set to
Truepreviously. (#​3267 <https://github.com/urllib3/urllib3/issues/3267>__)#​3268 <https://github.com/urllib3/urllib3/issues/3268>__)#​3325 <https://github.com/urllib3/urllib3/issues/3325>__)time with the
--integrationpytest flag. (#​3181 <https://github.com/urllib3/urllib3/issues/3181>__)v2.1.0Compare Source
==================
#​2680 <https://github.com/urllib3/urllib3/issues/2680>__)#​2681 <https://github.com/urllib3/urllib3/issues/2681>__)#​3143 <https://github.com/urllib3/urllib3/issues/3143>__)#​3065 <https://github.com/urllib3/urllib3/issues/3065>__)x-gzipcontent-encoding. (#​3174 <https://github.com/urllib3/urllib3/issues/3174>__)v2.0.7Compare Source
==================
v2.0.6Compare Source
==================
Cookieheader to the list of headers to strip from requests when redirecting to a different host. As before, different headers can be set viaRetry.remove_headers_on_redirect.v2.0.5Compare Source
==================
#​3126 <https://github.com/urllib3/urllib3/issues/3126>__)blocksizeofHTTPConnectionclasses to match high-level classes. Previously was 8KiB, now 16KiB. (#​3066 <https://github.com/urllib3/urllib3/issues/3066>__)v2.0.4Compare Source
==================
HTTPHeaderDict(#​2254 <https://github.com/urllib3/urllib3/issues/2254>__)BaseHTTPResponsetourllib3.__all__(#​3078 <https://github.com/urllib3/urllib3/issues/3078>__)urllib3.connection.HTTPConnectionto raise thehttp.client.connectaudit event to have the same behavior as the standard library HTTP client (#​2757 <https://github.com/urllib3/urllib3/issues/2757>__)#​3087 <https://github.com/urllib3/urllib3/issues/3087>__)v2.0.3Compare Source
==================
#​3020 <https://github.com/urllib3/urllib3/issues/3020>__)#​2950 <https://github.com/urllib3/urllib3/pull/2950>_)#​3008 <https://github.com/urllib3/urllib3/issues/3008>__)assert_hostname=Falseto correctly skip hostname check. (#​3051 <https://github.com/urllib3/urllib3/issues/3051>__)v2.0.2Compare Source
==================
HTTPResponse.stream()to continue yielding bytes if buffered decompressed datawas still available to be read even if the underlying socket is closed. This prevents
a compressed response from being truncated. (
#​3009 <https://github.com/urllib3/urllib3/issues/3009>__)v2.0.1Compare Source
==================
#​2991 <https://github.com/urllib3/urllib3/issues/2991>__)HTTPResponse.read(0)was the firstreadcall or when the internal response body buffer was otherwise empty. (#​2998 <https://github.com/urllib3/urllib3/issues/2998>__)v2.0.0Compare Source
==================
Read the
v2.0 migration guide <https://urllib3.readthedocs.io/en/latest/v2-migration-guide.html>__ for help upgrading to the latest version of urllib3.Removed
#​883 <https://github.com/urllib3/urllib3/issues/883>,#​2336 <https://github.com/urllib3/urllib3/issues/2336>).commonNameinmatch_hostname()function.This behavior was deprecated in May 2000 in RFC 2818. Instead only
subjectAltNameis used to verify the hostname by default. To enable verifying the hostname against
commonNameuseSSLContext.hostname_checks_common_name = True(#​2113 <https://github.com/urllib3/urllib3/issues/2113>__).sslmodule compiled with LibreSSL, CiscoSSL,wolfSSL, and all other OpenSSL alternatives. Python is moving to require OpenSSL with PEP 644 (
#​2168 <https://github.com/urllib3/urllib3/issues/2168>__).When an incompatible OpenSSL version is detected an
ImportErroris raised (#​2168 <https://github.com/urllib3/urllib3/issues/2168>__).#​2082 <https://github.com/urllib3/urllib3/issues/2082>__).urllib3.contrib.appengine.AppEngineManagerand support for Google App Engine Standard Environment (#​2044 <https://github.com/urllib3/urllib3/issues/2044>__).Retryoptionsmethod_whitelist,DEFAULT_REDIRECT_HEADERS_BLACKLIST(#​2086 <https://github.com/urllib3/urllib3/issues/2086>__).urllib3.HTTPResponse.from_httplib(#​2648 <https://github.com/urllib3/urllib3/issues/2648>__).Nonefor therequest_contextparameter ofurllib3.PoolManager.connection_from_pool_key. This change should have no effect on users as the default value ofNonewas an invalid option and was never used (#​1897 <https://github.com/urllib3/urllib3/issues/1897>__).urllib3.requestmodule.urllib3.request.RequestMethodshas been made a private API.This change was made to ensure that
from urllib3 import requestimported the top-levelrequest()function instead of the
urllib3.requestmodule (#​2269 <https://github.com/urllib3/urllib3/issues/2269>__).urllib3.contrib.pyopenssleven when support is available from the compiled OpenSSL library (#​2233 <https://github.com/urllib3/urllib3/issues/2233>__).urllib3.contrib.ntlmpoolmodule (#​2339 <https://github.com/urllib3/urllib3/issues/2339>__).DEFAULT_CIPHERS,HAS_SNI,USE_DEFAULT_SSLCONTEXT_CIPHERS, from the private moduleurllib3.util.ssl_(#​2168 <https://github.com/urllib3/urllib3/issues/2168>__).urllib3.exceptions.SNIMissingWarning(#​2168 <https://github.com/urllib3/urllib3/issues/2168>__)._prepare_connmethod fromHTTPConnectionPool. Previously this was only used to callHTTPSConnection.set_cert()byHTTPSConnectionPool(#​1985 <https://github.com/urllib3/urllib3/issues/1985>__).tls_in_tls_requiredproperty fromHTTPSConnection. This is now determined from theschemeparameter inHTTPConnection.set_tunnel()(#​1985 <https://github.com/urllib3/urllib3/issues/1985>__).strictparameter/attribute fromHTTPConnection,HTTPSConnection,HTTPConnectionPool,HTTPSConnectionPool, andHTTPResponse(#​2064 <https://github.com/urllib3/urllib3/issues/2064>__).Deprecated
HTTPResponse.getheaders()andHTTPResponse.getheader()which will be removed in urllib3 v2.1.0. Instead useHTTPResponse.headersandHTTPResponse.headers.get(name, default). (#​1543 <https://github.com/urllib3/urllib3/issues/1543>,#​2814 <https://github.com/urllib3/urllib3/issues/2814>).urllib3.contrib.pyopensslmodule which will be removed in urllib3 v2.1.0 (#​2691 <https://github.com/urllib3/urllib3/issues/2691>__).urllib3.contrib.securetransportmodule which will be removed in urllib3 v2.1.0 (#​2692 <https://github.com/urllib3/urllib3/issues/2692>__).ssl_versionoption in favor ofssl_minimum_version.ssl_versionwill be removed in urllib3 v2.1.0 (#​2110 <https://github.com/urllib3/urllib3/issues/2110>__).strictparameter ofPoolManager.connection_from_context()as it's not longer needed in Python 3.x. It will be removed in urllib3 v2.1.0 (#​2267 <https://github.com/urllib3/urllib3/issues/2267>__)NewConnectionError.poolattribute which will be removed in urllib3 v2.1.0 (#​2271 <https://github.com/urllib3/urllib3/issues/2271>__).format_header_param_html5andformat_header_paramin favor offormat_multipart_header_param(#​2257 <https://github.com/urllib3/urllib3/issues/2257>__).RequestField.header_formatterparameter which will be removed in urllib3 v2.1.0 (#​2257 <https://github.com/urllib3/urllib3/issues/2257>__).HTTPSConnection.set_cert()method. Instead pass parameters to theHTTPSConnectionconstructor (#​1985 <https://github.com/urllib3/urllib3/issues/1985>__).HTTPConnection.request_chunked()method which will be removed in urllib3 v2.1.0. Instead passchunked=TruetoHTTPConnection.request()(#​1985 <https://github.com/urllib3/urllib3/issues/1985>__).Added
urllib3.requestfunction which uses a preconfigured module-globalPoolManagerinstance (#​2150 <https://github.com/urllib3/urllib3/issues/2150>__).jsonparameter tourllib3.request(),PoolManager.request(), andConnectionPool.request()methods to send JSON bodies in requests. Using this parameter will set the headerContent-Type: application/jsonifContent-Typeisn't already defined.Added support for parsing JSON response bodies with
HTTPResponse.json()method (#​2243 <https://github.com/urllib3/urllib3/issues/2243>__).urllib3module (#​1897 <https://github.com/urllib3/urllib3/issues/1897>__).ssl_minimum_versionandssl_maximum_versionoptions which setSSLContext.minimum_versionandSSLContext.maximum_version(#​2110 <https://github.com/urllib3/urllib3/issues/2110>__).zstandard1.18.0 or later is installed.Added the
zstdextra which installs thezstandardpackage (#​1992 <https://github.com/urllib3/urllib3/issues/1992>__).urllib3.response.BaseHTTPResponseclass. All future response classes will be subclasses ofBaseHTTPResponse(#​2083 <https://github.com/urllib3/urllib3/issues/2083>__).FullPoolErrorwhich is raised whenPoolManager(block=True)and a connection is returned to a full pool (#​2197 <https://github.com/urllib3/urllib3/issues/2197>__).HTTPHeaderDictto the top-levelurllib3namespace (#​2216 <https://github.com/urllib3/urllib3/issues/2216>__).When using a
HTTPHeaderDictto provide headers for a request, by default duplicateheader values will be repeated. But if
combine=Trueis passed into a call toHTTPHeaderDict.add, then the added header value will be merged in with an existingvalue into a comma-separated list (
X-My-Header: foo, bar) (#​2242 <https://github.com/urllib3/urllib3/issues/2242>__).NameResolutionErrorexception when a DNS error occurs (#​2305 <https://github.com/urllib3/urllib3/issues/2305>__).proxy_assert_hostnameandproxy_assert_fingerprintkwargs toProxyManager(#​2409 <https://github.com/urllib3/urllib3/issues/2409>__).backoff_maxparameter to theRetryclass.If a custom
backoff_maxis provided to theRetryclass, itwill replace the
Retry.DEFAULT_BACKOFF_MAX(#​2494 <https://github.com/urllib3/urllib3/issues/2494>__).authorityproperty to the Url class as per RFC 3986 3.2. This property should be used in place ofnetlocfor users who want to include the userinfo (auth) component of the URI (#​2520 <https://github.com/urllib3/urllib3/issues/2520>__).schemeparameter toHTTPConnection.set_tunnelto configure the scheme of the origin being tunnelled to (#​1985 <https://github.com/urllib3/urllib3/issues/1985>__).is_closed,is_connectedandhas_connected_to_proxyproperties toHTTPConnection(#​1985 <https://github.com/urllib3/urllib3/issues/1985>__).backoff_jitterparameter toRetry. (#​2952 <https://github.com/urllib3/urllib3/issues/2952>__)Changed
Changed
urllib3.response.HTTPResponse.readto respect the semantics ofio.BufferedIOBaseregardless of compression. Specifically, this method:If you want each
urllib3.response.HTTPResponse.readcall to issue a single system call, you need to disable decompression by settingdecode_content=False(#​2128 <https://github.com/urllib3/urllib3/issues/2128>__).Changed
urllib3.HTTPConnection.getresponseto return an instance ofurllib3.HTTPResponseinstead ofhttp.client.HTTPResponse(#​2648 <https://github.com/urllib3/urllib3/issues/2648>__).Changed
ssl_versionto instead set the correspondingSSLContext.minimum_versionand
SSLContext.maximum_versionvalues. Regardless ofssl_versionpassedSSLContextobjects are now constructed usingssl.PROTOCOL_TLS_CLIENT(#​2110 <https://github.com/urllib3/urllib3/issues/2110>__).Changed default
SSLContext.minimum_versionto beTLSVersion.TLSv1_2in line with Python 3.10 (#​2373 <https://github.com/urllib3/urllib3/issues/2373>__).Changed
ProxyErrorto wrap any connection error (timeout, TLS, DNS) that occurs when connecting to the proxy (#​2482 <https://github.com/urllib3/urllib3/pull/2482>__).Changed
urllib3.util.create_urllib3_contextto not override the system cipher suites witha default value. The new default will be cipher suites configured by the operating system (
#​2168 <https://github.com/urllib3/urllib3/issues/2168>__).Changed
multipart/form-dataheader parameter formatting matches the WHATWG HTML Standard as of 2021-06-10. Control characters in filenames are no longer percent encoded (#​2257 <https://github.com/urllib3/urllib3/issues/2257>__).Changed the error raised when connecting via HTTPS when the
sslmodule isn't available fromSSLErrortoImportError(#​2589 <https://github.com/urllib3/urllib3/issues/2589>__).Changed
HTTPConnection.request()to always use lowercase chunk boundaries when sending requests withTransfer-Encoding: chunked(#​2515 <https://github.com/urllib3/urllib3/issues/2515>__).Changed
enforce_content_lengthdefault to True, preventing silent data loss when reading streamed responses (#​2514 <https://github.com/urllib3/urllib3/issues/2514>__).Changed internal implementation of
HTTPHeaderDictto usedictinstead ofcollections.OrderedDictfor better performance (#​2080 <https://github.com/urllib3/urllib3/issues/2080>__).Changed the
urllib3.contrib.pyopensslmodule to wrapOpenSSL.SSL.Errorwithssl.SSLErrorinPyOpenSSLContext.load_cert_chain(#​2628 <https://github.com/urllib3/urllib3/issues/2628>__).Changed usage of the deprecated
socket.errortoOSError(#​2120 <https://github.com/urllib3/urllib3/issues/2120>__).Changed all parameters in the
HTTPConnectionandHTTPSConnectionconstructors to be keyword-only excepthostandport(#​1985 <https://github.com/urllib3/urllib3/issues/1985>__).Changed
HTTPConnection.getresponse()to set the socket timeout fromHTTPConnection.timeoutvalue before readingdata from the socket. This previously was done manually by the
HTTPConnectionPoolcallingHTTPConnection.sock.settimeout(...)(#​1985 <https://github.com/urllib3/urllib3/issues/1985>__).Changed the
_proxy_hostproperty to_tunnel_hostinHTTPConnectionPoolto more closely match how the property is used (value inHTTPConnection.set_tunnel()) (#​1985 <https://github.com/urllib3/urllib3/issues/1985>__).Changed name of
Retry.BACK0FF_MAXto beRetry.DEFAULT_BACKOFF_MAX.Changed TLS handshakes to use
SSLContext.check_hostnamewhen possible (#​2452 <https://github.com/urllib3/urllib3/pull/2452>__).Changed
server_hostnameto behave like other parameters only used byHTTPSConnectionPool(#​2537 <https://github.com/urllib3/urllib3/pull/2537>__).Changed the default
blocksizeto 16KB to match OpenSSL's default read amounts (#​2348 <https://github.com/urllib3/urllib3/pull/2348>__).Changed
HTTPResponse.read()to raise an error when calling withdecode_content=Falseafter usingdecode_content=Trueto prevent data loss (#​2800 <https://github.com/urllib3/urllib3/issues/2800>__).Fixed
PoolManagerwith many distinct origins would cause connection pools to be closed while requests are in progress (#​1252 <https://github.com/urllib3/urllib3/issues/1252>__).HTTPConnectioninstance would erroneously reuse the socket read timeout value from reading the previous response instead of a newly configured connect timeout.Instead now if
HTTPConnection.timeoutis updated before sending the next request the new timeout value will be used (#​2645 <https://github.com/urllib3/urllib3/issues/2645>__).socket.error.errnowhen raised from pyOpenSSL'sOpenSSL.SSL.SysCallError(#​2118 <https://github.com/urllib3/urllib3/issues/2118>__).HTTPSConnection.socket_optionsto matchHTTPConnection(#​2213 <https://github.com/urllib3/urllib3/issues/2213>__).headerswould be modified by theremove_headers_on_redirectfeature (#​2272 <https://github.com/urllib3/urllib3/issues/2272>__).urllib3.util.connection.create_connection()(#​2277 <https://github.com/urllib3/urllib3/issues/2277>__).HTTPConnection.connect()fails (#​2571 <https://github.com/urllib3/urllib3/pull/2571>__).urllib3.contrib.pyopenssl.WrappedSocketandurllib3.contrib.securetransport.WrappedSocketclose methods (#​2970 <https://github.com/urllib3/urllib3/issues/2970>__)Configuration
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