build(deps): bump the uv group across 10 directories with 2 updates (#4205) Bumps the uv group with 1 update in the /dev directory: [urllib3](https://github.com/urllib3/urllib3). Bumps the uv group with 1 update in the /examples/build_file_generation directory: [urllib3](https://github.com/urllib3/urllib3). Bumps the uv group with 1 update in the /examples/bzlmod directory: [urllib3](https://github.com/urllib3/urllib3). Bumps the uv group with 1 update in the /examples/pip_parse directory: [urllib3](https://github.com/urllib3/urllib3). Bumps the uv group with 1 update in the /examples/pip_parse_vendored directory: [urllib3](https://github.com/urllib3/urllib3). Bumps the uv group with 2 updates in the /gazelle/examples/bzlmod_build_file_generation directory: [urllib3](https://github.com/urllib3/urllib3) and [django](https://github.com/django/django). Bumps the uv group with 1 update in the /sphinxdocs/dev directory: [urllib3](https://github.com/urllib3/urllib3). Bumps the uv group with 1 update in the /tests/multiple_inputs directory: [urllib3](https://github.com/urllib3/urllib3). Bumps the uv group with 1 update in the /tests/uv/lock/pyproject_toml directory: [urllib3](https://github.com/urllib3/urllib3). Bumps the uv group with 1 update in the /tests/uv/lock/workspaces directory: [urllib3](https://github.com/urllib3/urllib3). Updates `urllib3` from 2.7.0 to 2.8.0 <details> <summary>Release notes</summary> <p><em>Sourced from <a href="https://github.com/urllib3/urllib3/releases">urllib3's releases</a>.</em></p> <blockquote> <h2>2.8.0</h2> <h2>🚀 urllib3 is fundraising for HTTP/2 support</h2> <p><a href="https://sethmlarson.dev/urllib3-is-fundraising-for-http2-support">urllib3 is raising ~$40,000 USD</a> to release HTTP/2 support and ensure long-term sustainable maintenance of the project. If your company or organization uses Python and would benefit from HTTP/2 support in Requests, pip, cloud SDKs, and thousands of other projects <a href="https://opencollective.com/urllib3">please consider contributing financially</a> to ensure HTTP/2 support is developed sustainably and maintained for the long-haul.</p> <p>Thank you for your support.</p> <h2>Security</h2> <p>Fixed the following security issues:</p> <ul> <li>The TLS configuration for HTTPS proxies could be ignored or overridden. (High severity, GHSA-8988-9cw3-xx77)</li> <li><code>HTTPResponse.stream()</code> and <code>read_chunked()</code> could buffer a chunk-size line of unbounded length in memory. (High severity, GHSA-vxq7-64xx-v4gw)</li> <li>Chunked Deflate streaming could enter an infinite loop. (Medium severity, GHSA-gh4c-6fx4-qh6g)</li> </ul> <blockquote> <p>[!IMPORTANT] urllib3 2.8.0 fixes HTTPS proxy TLS configuration being ignored or overridden by destination settings. Configurations relying on that behavior may require changes.</p> <p>Configure proxy CA certificates and client certificates in <code>proxy_ssl_context</code>, and proxy identity checks with <code>proxy_assert_hostname</code> or <code>proxy_assert_fingerprint</code>. Destination client certificates and identity overrides no longer apply to HTTPS forwarding proxy connections.</p> </blockquote> <blockquote> <p>[!NOTE] CVE IDs had not yet been assigned to these advisories at the time of release due to a backlog at GitHub's CNA.</p> </blockquote> <h2>Deprecations & Removals</h2> <ul> <li>Deprecated using an empty collection as the <code>Retry</code> option <code>allowed_methods</code> to retry any verb. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5044">#5044</a>)</li> </ul> <h2>Features</h2> <ul> <li>Added <code>Url.auth_decoded</code> and <code>Url.auth_decoded_joined</code> convenience properties to the result of <code>parse_url()</code>. (<a href="https://redirect.github.com/urllib3/urllib3/issues/4945">#4945</a>)</li> <li>Added <code>basic_auth_encoding</code> and <code>proxy_basic_auth_encoding</code> parameters to <code>urllib3.util.make_headers()</code>. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5092">#5092</a>)</li> </ul> <h2>Bugfixes</h2> <ul> <li> <p>Fixed response header handling to replace obsolete folded header lines (<code>obs-fold</code>) with spaces in accordance with RFC 9112, preventing raw CRLF sequences from appearing in header values such as <code>Set-Cookie</code>. (<a href="https://redirect.github.com/urllib3/urllib3/issues/1362">#1362</a>)</p> </li> <li> <p>Fixed usage of <code>proxy_ssl_context</code> with <code>ProxyManager</code> when <code>use_forwarding_for_https=True</code>. Passing <code>ssl_context</code> instead of <code>proxy_ssl_context</code> for HTTPS proxies in this configuration now emits a <code>FutureWarning</code> and will raise an error in v3.0. (<a href="https://redirect.github.com/urllib3/urllib3/issues/2577">#2577</a>)</p> </li> <li> <p>Changed behavior of the default <code>ConnectionPool.pool</code> initialization. <code>LifoQueue</code> is now resolved from the <code>queue</code> module after the <code>ConnectionPool</code> is instantiated instead of using the default cached <code>QueueCls</code> class property. This is done because sometimes the <code>queue.LifoQueue</code> is monkey-patched late in the program, such as by gevent. (<a href="https://redirect.github.com/urllib3/urllib3/issues/3289">#3289</a>)</p> </li> <li> <p>Raised <code>UnrewindableBodyError</code> instead of <code>ValueError</code> when retrying a request whose body had <code>tell()</code> but not <code>seek()</code>. (<a href="https://redirect.github.com/urllib3/urllib3/issues/3779">#3779</a>)</p> </li> <li> <p>Decoded percent-encoded SOCKS proxy credentials before authenticating with the proxy server. (<a href="https://redirect.github.com/urllib3/urllib3/issues/3785">#3785</a>)</p> </li> <li> <p>Fixed <code>HTTPResponse.drain_conn()</code> to discard unread response data in 64 KiB chunks (same as the default <code>amt</code> when doing <code>HTTPResponse.stream(...)</code>). (<a href="https://redirect.github.com/urllib3/urllib3/issues/5019">#5019</a>)</p> </li> <li> <p>Fixed <code>is_ipaddress()</code> to detect non-standard IPv4 forms accepted by <code>socket.connect</code>, such as hex (<code>0x7f000001</code>), octal (<code>0177.0.0.1</code>), and decimal integers (<code>2130706433</code>), ensuring SSL certificate verification uses the correct mode for these addresses. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5029">#5029</a>)</p> </li> <li> <p>Fixed <code>HTTPConnectionPool.urlopen</code> raising a misleading <code>FullPoolError</code> instead of <code>ValueError</code> when called with an invalid <code>timeout</code> argument on a pool created with <code>block=True</code>. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5059">#5059</a>)</p> </li> <li> <p>Fixed port-zero handling to preserve explicit <code>:0</code> values instead of substituting the default ports 80 or 443 in URL parsing, pool selection, proxy configuration, <code>connection_from_url()</code>, and HTTP/2 request authority. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5071">#5071</a>, <a href="https://redirect.github.com/urllib3/urllib3/issues/5101">#5101</a>)</p> </li> <li> <p>Fixed a bug where <code>PoolManager</code> passed the <code>assert_hostname</code> and <code>assert_fingerprint</code> parameters to HTTP connection pools. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5077">#5077</a>)</p> </li> <li> <p>Fixed <code>HTTPConnectionPool.urlopen()</code> and HTTP proxy forwarding to strip URL fragments from absolute request targets before sending requests. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5079">#5079</a>)</p> </li> <li> <p>Added safeguards to the proxy tunneling code to prevent potential security issues when handling invalid characters in the proxy host and HTTP headers. This change affects users of Python 3.10, Python 3.11, and Python 3.12 when the standard library does not contain the fix; those on newer Python versions should upgrade to 3.13.14+ or 3.14.5+ to get the same security fixes. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5091">#5091</a>)</p> </li> <li> <p>Fixed <code>HTTPSConnection.connect()</code> overriding <code>ProxyConfig.ssl_context</code>'s certificate policy and proxy identity checks with the target connection's TLS settings when forwarding through an HTTPS proxy.</p> <p><code>HTTPSConnection</code> no longer applies target SNI, assertions, or client credentials to forwarding proxy handshakes and continues to use its <code>ssl_context</code> as a fallback when an HTTPS proxy forwards an HTTP target. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5093">#5093</a>)</p> </li> <li> <p>Fixed URL parsing to more strictly enforce RFC 3986 host syntax, rejecting invalid host input such as raw spaces and control characters, malformed percent-encodings, and percent-encoded control characters in HTTP(S) hosts and IPv6 zone identifiers, including proxy CONNECT tunnel targets. Host normalization now also follows RFC 3986 normalization rules for percent-encoded octets by decoding percent-encoded unreserved characters and uppercasing the hexadecimal digits of retained percent-encoded octets. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5095">#5095</a>)</p> </li> </ul> <!-- raw HTML omitted --> </blockquote> <p>... (truncated)</p> </details> <details> <summary>Changelog</summary> <p><em>Sourced from <a href="https://github.com/urllib3/urllib3/blob/main/CHANGES.rst">urllib3's changelog</a>.</em></p> <blockquote> <h1>2.8.0 (2026-09-15)</h1> <h2>Security</h2> <p>Fixed the following security issues:</p> <ul> <li>The TLS configuration for HTTPS proxies could be ignored or overridden. (High severity, <code>GHSA-8988-9cw3-xx77 <https://github.com/urllib3/urllib3/security/advisories/GHSA-8988-9cw3-xx77></code>__)</li> <li><code>HTTPResponse.stream()</code> and <code>read_chunked()</code> could buffer a chunk-size line of unbounded length in memory. (High severity, <code>GHSA-vxq7-64xx-v4gw <https://github.com/urllib3/urllib3/security/advisories/GHSA-vxq7-64xx-v4gw></code>__)</li> <li>Chunked Deflate streaming could enter an infinite loop. (Medium severity, <code>GHSA-gh4c-6fx4-qh6g <https://github.com/urllib3/urllib3/security/advisories/GHSA-gh4c-6fx4-qh6g></code>__)</li> </ul> <p>.. caution::</p> <pre><code>urllib3 2.8.0 fixes HTTPS proxy TLS configuration being ignored or overridden by destination settings. Configurations relying on that behavior may require changes. <p>Configure proxy CA certificates and client certificates in <code>proxy_ssl_context</code>, and proxy identity checks with <code>proxy_assert_hostname</code> or <code>proxy_assert_fingerprint</code>. Destination client certificates and identity overrides no longer apply to HTTPS forwarding proxy connections. </code></pre></p> <h2>Deprecations & Removals</h2> <ul> <li>Deprecated using an empty collection as the <code>Retry</code> option <code>allowed_methods</code> to retry any verb. (<code>[#5044](https://github.com/urllib3/urllib3/issues/5044) <https://github.com/urllib3/urllib3/issues/5044></code>__)</li> </ul> <h2>Features</h2> <ul> <li>Added <code>Url.auth_decoded</code> and <code>Url.auth_decoded_joined</code> convenience properties to the result of <code>parse_url()</code>. (<code>[#4945](https://github.com/urllib3/urllib3/issues/4945) <https://github.com/urllib3/urllib3/issues/4945></code>__)</li> <li>Added <code>basic_auth_encoding</code> and <code>proxy_basic_auth_encoding</code> parameters to <code>urllib3.util.make_headers()</code>. (<code>[#5092](https://github.com/urllib3/urllib3/issues/5092) <https://github.com/urllib3/urllib3/issues/5092></code>__)</li> </ul> <h2>Bugfixes</h2> <!-- raw HTML omitted --> </blockquote> <p>... (truncated)</p> </details> <details> <summary>Commits</summary> <ul> <li><a href="https://github.com/urllib3/urllib3/commit/b1d30ab61fe0db8f11092805e8c5ac43e091064a"><code>b1d30ab</code></a> Release 2.8.0</li> <li><a href="https://github.com/urllib3/urllib3/commit/9016d7e8afc68185496ef07f3c3a4a743d04922e"><code>9016d7e</code></a> Skip <code>test_read_chunked_with_trailing_data_does_not_hang</code> for brotlicffi (<a href="https://redirect.github.com/urllib3/urllib3/issues/5258">#5258</a>)</li> <li><a href="https://github.com/urllib3/urllib3/commit/9101f581a8b3659af23b6ff335ae77200ca33533"><code>9101f58</code></a> Fix <code>nox -s docs</code> warning (<a href="https://redirect.github.com/urllib3/urllib3/issues/5256">#5256</a>)</li> <li><a href="https://github.com/urllib3/urllib3/commit/cd770b059b543be29298ea5c52afb0b1b090f5ed"><code>cd770b0</code></a> Merge commit from fork</li> <li><a href="https://github.com/urllib3/urllib3/commit/ea2ad7b21a80da3632f80016526a18864586077f"><code>ea2ad7b</code></a> Merge commit from fork</li> <li><a href="https://github.com/urllib3/urllib3/commit/0716e31534345dc1599ea95d903c79f276239bd8"><code>0716e31</code></a> Fix loading unencrypted client keys with a password in pyOpenSSL (<a href="https://redirect.github.com/urllib3/urllib3/issues/5255">#5255</a>)</li> <li><a href="https://github.com/urllib3/urllib3/commit/43c68c8b43a9dcb44ed2cf4ec91384ca0d46b37d"><code>43c68c8</code></a> Test pickling of <code>InvalidChunkLength</code> (<a href="https://redirect.github.com/urllib3/urllib3/issues/5247">#5247</a>)</li> <li><a href="https://github.com/urllib3/urllib3/commit/308b279b3fb28e7bee952e152ec5baeb5bfd0817"><code>308b279</code></a> Share security policy between GitHub and Read the Docs (<a href="https://redirect.github.com/urllib3/urllib3/issues/5253">#5253</a>)</li> <li><a href="https://github.com/urllib3/urllib3/commit/53fa0731b27d4b71ab0755ea5b896422d005d706"><code>53fa073</code></a> Add policy on duplicate pull requests (<a href="https://redirect.github.com/urllib3/urllib3/issues/5252">#5252</a>)</li> <li><a href="https://github.com/urllib3/urllib3/commit/5f2a6a843d0100d1351c3f94d58581ca98d17267"><code>5f2a6a8</code></a> Assert on the ALPN extension in test_tunnel_sets_http_11_alpn (<a href="https://redirect.github.com/urllib3/urllib3/issues/5232">#5232</a>)</li> <li>Additional commits viewable in <a href="https://github.com/urllib3/urllib3/compare/2.7.0...2.8.0">compare view</a></li> </ul> </details> <br /> Updates `urllib3` from 2.7.0 to 2.8.0 <details> <summary>Release notes</summary> <p><em>Sourced from <a href="https://github.com/urllib3/urllib3/releases">urllib3's releases</a>.</em></p> <blockquote> <h2>2.8.0</h2> <h2>🚀 urllib3 is fundraising for HTTP/2 support</h2> <p><a href="https://sethmlarson.dev/urllib3-is-fundraising-for-http2-support">urllib3 is raising ~$40,000 USD</a> to release HTTP/2 support and ensure long-term sustainable maintenance of the project. If your company or organization uses Python and would benefit from HTTP/2 support in Requests, pip, cloud SDKs, and thousands of other projects <a href="https://opencollective.com/urllib3">please consider contributing financially</a> to ensure HTTP/2 support is developed sustainably and maintained for the long-haul.</p> <p>Thank you for your support.</p> <h2>Security</h2> <p>Fixed the following security issues:</p> <ul> <li>The TLS configuration for HTTPS proxies could be ignored or overridden. (High severity, GHSA-8988-9cw3-xx77)</li> <li><code>HTTPResponse.stream()</code> and <code>read_chunked()</code> could buffer a chunk-size line of unbounded length in memory. (High severity, GHSA-vxq7-64xx-v4gw)</li> <li>Chunked Deflate streaming could enter an infinite loop. (Medium severity, GHSA-gh4c-6fx4-qh6g)</li> </ul> <blockquote> <p>[!IMPORTANT] urllib3 2.8.0 fixes HTTPS proxy TLS configuration being ignored or overridden by destination settings. Configurations relying on that behavior may require changes.</p> <p>Configure proxy CA certificates and client certificates in <code>proxy_ssl_context</code>, and proxy identity checks with <code>proxy_assert_hostname</code> or <code>proxy_assert_fingerprint</code>. Destination client certificates and identity overrides no longer apply to HTTPS forwarding proxy connections.</p> </blockquote> <blockquote> <p>[!NOTE] CVE IDs had not yet been assigned to these advisories at the time of release due to a backlog at GitHub's CNA.</p> </blockquote> <h2>Deprecations & Removals</h2> <ul> <li>Deprecated using an empty collection as the <code>Retry</code> option <code>allowed_methods</code> to retry any verb. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5044">#5044</a>)</li> </ul> <h2>Features</h2> <ul> <li>Added <code>Url.auth_decoded</code> and <code>Url.auth_decoded_joined</code> convenience properties to the result of <code>parse_url()</code>. (<a href="https://redirect.github.com/urllib3/urllib3/issues/4945">#4945</a>)</li> <li>Added <code>basic_auth_encoding</code> and <code>proxy_basic_auth_encoding</code> parameters to <code>urllib3.util.make_headers()</code>. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5092">#5092</a>)</li> </ul> <h2>Bugfixes</h2> <ul> <li> <p>Fixed response header handling to replace obsolete folded header lines (<code>obs-fold</code>) with spaces in accordance with RFC 9112, preventing raw CRLF sequences from appearing in header values such as <code>Set-Cookie</code>. (<a href="https://redirect.github.com/urllib3/urllib3/issues/1362">#1362</a>)</p> </li> <li> <p>Fixed usage of <code>proxy_ssl_context</code> with <code>ProxyManager</code> when <code>use_forwarding_for_https=True</code>. Passing <code>ssl_context</code> instead of <code>proxy_ssl_context</code> for HTTPS proxies in this configuration now emits a <code>FutureWarning</code> and will raise an error in v3.0. (<a href="https://redirect.github.com/urllib3/urllib3/issues/2577">#2577</a>)</p> </li> <li> <p>Changed behavior of the default <code>ConnectionPool.pool</code> initialization. <code>LifoQueue</code> is now resolved from the <code>queue</code> module after the <code>ConnectionPool</code> is instantiated instead of using the default cached <code>QueueCls</code> class property. This is done because sometimes the <code>queue.LifoQueue</code> is monkey-patched late in the program, such as by gevent. (<a href="https://redirect.github.com/urllib3/urllib3/issues/3289">#3289</a>)</p> </li> <li> <p>Raised <code>UnrewindableBodyError</code> instead of <code>ValueError</code> when retrying a request whose body had <code>tell()</code> but not <code>seek()</code>. (<a href="https://redirect.github.com/urllib3/urllib3/issues/3779">#3779</a>)</p> </li> <li> <p>Decoded percent-encoded SOCKS proxy credentials before authenticating with the proxy server. (<a href="https://redirect.github.com/urllib3/urllib3/issues/3785">#3785</a>)</p> </li> <li> <p>Fixed <code>HTTPResponse.drain_conn()</code> to discard unread response data in 64 KiB chunks (same as the default <code>amt</code> when doing <code>HTTPResponse.stream(...)</code>). (<a href="https://redirect.github.com/urllib3/urllib3/issues/5019">#5019</a>)</p> </li> <li> <p>Fixed <code>is_ipaddress()</code> to detect non-standard IPv4 forms accepted by <code>socket.connect</code>, such as hex (<code>0x7f000001</code>), octal (<code>0177.0.0.1</code>), and decimal integers (<code>2130706433</code>), ensuring SSL certificate verification uses the correct mode for these addresses. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5029">#5029</a>)</p> </li> <li> <p>Fixed <code>HTTPConnectionPool.urlopen</code> raising a misleading <code>FullPoolError</code> instead of <code>ValueError</code> when called with an invalid <code>timeout</code> argument on a pool created with <code>block=True</code>. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5059">#5059</a>)</p> </li> <li> <p>Fixed port-zero handling to preserve explicit <code>:0</code> values instead of substituting the default ports 80 or 443 in URL parsing, pool selection, proxy configuration, <code>connection_from_url()</code>, and HTTP/2 request authority. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5071">#5071</a>, <a href="https://redirect.github.com/urllib3/urllib3/issues/5101">#5101</a>)</p> </li> <li> <p>Fixed a bug where <code>PoolManager</code> passed the <code>assert_hostname</code> and <code>assert_fingerprint</code> parameters to HTTP connection pools. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5077">#5077</a>)</p> </li> <li> <p>Fixed <code>HTTPConnectionPool.urlopen()</code> and HTTP proxy forwarding to strip URL fragments from absolute request targets before sending requests. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5079">#5079</a>)</p> </li> <li> <p>Added safeguards to the proxy tunneling code to prevent potential security issues when handling invalid characters in the proxy host and HTTP headers. This change affects users of Python 3.10, Python 3.11, and Python 3.12 when the standard library does not contain the fix; those on newer Python versions should upgrade to 3.13.14+ or 3.14.5+ to get the same security fixes. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5091">#5091</a>)</p> </li> <li> <p>Fixed <code>HTTPSConnection.connect()</code> overriding <code>ProxyConfig.ssl_context</code>'s certificate policy and proxy identity checks with the target connection's TLS settings when forwarding through an HTTPS proxy.</p> <p><code>HTTPSConnection</code> no longer applies target SNI, assertions, or client credentials to forwarding proxy handshakes and continues to use its <code>ssl_context</code> as a fallback when an HTTPS proxy forwards an HTTP target. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5093">#5093</a>)</p> </li> <li> <p>Fixed URL parsing to more strictly enforce RFC 3986 host syntax, rejecting invalid host input such as raw spaces and control characters, malformed percent-encodings, and percent-encoded control characters in HTTP(S) hosts and IPv6 zone identifiers, including proxy CONNECT tunnel targets. Host normalization now also follows RFC 3986 normalization rules for percent-encoded octets by decoding percent-encoded unreserved characters and uppercasing the hexadecimal digits of retained percent-encoded octets. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5095">#5095</a>)</p> </li> </ul> <!-- raw HTML omitted --> </blockquote> <p>... (truncated)</p> </details> <details> <summary>Changelog</summary> <p><em>Sourced from <a href="https://github.com/urllib3/urllib3/blob/main/CHANGES.rst">urllib3's changelog</a>.</em></p> <blockquote> <h1>2.8.0 (2026-09-15)</h1> <h2>Security</h2> <p>Fixed the following security issues:</p> <ul> <li>The TLS configuration for HTTPS proxies could be ignored or overridden. (High severity, <code>GHSA-8988-9cw3-xx77 <https://github.com/urllib3/urllib3/security/advisories/GHSA-8988-9cw3-xx77></code>__)</li> <li><code>HTTPResponse.stream()</code> and <code>read_chunked()</code> could buffer a chunk-size line of unbounded length in memory. (High severity, <code>GHSA-vxq7-64xx-v4gw <https://github.com/urllib3/urllib3/security/advisories/GHSA-vxq7-64xx-v4gw></code>__)</li> <li>Chunked Deflate streaming could enter an infinite loop. (Medium severity, <code>GHSA-gh4c-6fx4-qh6g <https://github.com/urllib3/urllib3/security/advisories/GHSA-gh4c-6fx4-qh6g></code>__)</li> </ul> <p>.. caution::</p> <pre><code>urllib3 2.8.0 fixes HTTPS proxy TLS configuration being ignored or overridden by destination settings. Configurations relying on that behavior may require changes. <p>Configure proxy CA certificates and client certificates in <code>proxy_ssl_context</code>, and proxy identity checks with <code>proxy_assert_hostname</code> or <code>proxy_assert_fingerprint</code>. Destination client certificates and identity overrides no longer apply to HTTPS forwarding proxy connections. </code></pre></p> <h2>Deprecations & Removals</h2> <ul> <li>Deprecated using an empty collection as the <code>Retry</code> option <code>allowed_methods</code> to retry any verb. (<code>[#5044](https://github.com/urllib3/urllib3/issues/5044) <https://github.com/urllib3/urllib3/issues/5044></code>__)</li> </ul> <h2>Features</h2> <ul> <li>Added <code>Url.auth_decoded</code> and <code>Url.auth_decoded_joined</code> convenience properties to the result of <code>parse_url()</code>. (<code>[#4945](https://github.com/urllib3/urllib3/issues/4945) <https://github.com/urllib3/urllib3/issues/4945></code>__)</li> <li>Added <code>basic_auth_encoding</code> and <code>proxy_basic_auth_encoding</code> parameters to <code>urllib3.util.make_headers()</code>. (<code>[#5092](https://github.com/urllib3/urllib3/issues/5092) <https://github.com/urllib3/urllib3/issues/5092></code>__)</li> </ul> <h2>Bugfixes</h2> <!-- raw HTML omitted --> </blockquote> <p>... (truncated)</p> </details> <details> <summary>Commits</summary> <ul> <li><a href="https://github.com/urllib3/urllib3/commit/b1d30ab61fe0db8f11092805e8c5ac43e091064a"><code>b1d30ab</code></a> Release 2.8.0</li> <li><a href="https://github.com/urllib3/urllib3/commit/9016d7e8afc68185496ef07f3c3a4a743d04922e"><code>9016d7e</code></a> Skip <code>test_read_chunked_with_trailing_data_does_not_hang</code> for brotlicffi (<a href="https://redirect.github.com/urllib3/urllib3/issues/5258">#5258</a>)</li> <li><a href="https://github.com/urllib3/urllib3/commit/9101f581a8b3659af23b6ff335ae77200ca33533"><code>9101f58</code></a> Fix <code>nox -s docs</code> warning (<a href="https://redirect.github.com/urllib3/urllib3/issues/5256">#5256</a>)</li> <li><a href="https://github.com/urllib3/urllib3/commit/cd770b059b543be29298ea5c52afb0b1b090f5ed"><code>cd770b0</code></a> Merge commit from fork</li> <li><a href="https://github.com/urllib3/urllib3/commit/ea2ad7b21a80da3632f80016526a18864586077f"><code>ea2ad7b</code></a> Merge commit from fork</li> <li><a href="https://github.com/urllib3/urllib3/commit/0716e31534345dc1599ea95d903c79f276239bd8"><code>0716e31</code></a> Fix loading unencrypted client keys with a password in pyOpenSSL (<a href="https://redirect.github.com/urllib3/urllib3/issues/5255">#5255</a>)</li> <li><a href="https://github.com/urllib3/urllib3/commit/43c68c8b43a9dcb44ed2cf4ec91384ca0d46b37d"><code>43c68c8</code></a> Test pickling of <code>InvalidChunkLength</code> (<a href="https://redirect.github.com/urllib3/urllib3/issues/5247">#5247</a>)</li> <li><a href="https://github.com/urllib3/urllib3/commit/308b279b3fb28e7bee952e152ec5baeb5bfd0817"><code>308b279</code></a> Share security policy between GitHub and Read the Docs (<a href="https://redirect.github.com/urllib3/urllib3/issues/5253">#5253</a>)</li> <li><a href="https://github.com/urllib3/urllib3/commit/53fa0731b27d4b71ab0755ea5b896422d005d706"><code>53fa073</code></a> Add policy on duplicate pull requests (<a href="https://redirect.github.com/urllib3/urllib3/issues/5252">#5252</a>)</li> <li><a href="https://github.com/urllib3/urllib3/commit/5f2a6a843d0100d1351c3f94d58581ca98d17267"><code>5f2a6a8</code></a> Assert on the ALPN extension in test_tunnel_sets_http_11_alpn (<a href="https://redirect.github.com/urllib3/urllib3/issues/5232">#5232</a>)</li> <li>Additional commits viewable in <a href="https://github.com/urllib3/urllib3/compare/2.7.0...2.8.0">compare view</a></li> </ul> </details> <br /> Updates `urllib3` from 2.7.0 to 2.8.0 <details> <summary>Release notes</summary> <p><em>Sourced from <a href="https://github.com/urllib3/urllib3/releases">urllib3's releases</a>.</em></p> <blockquote> <h2>2.8.0</h2> <h2>🚀 urllib3 is fundraising for HTTP/2 support</h2> <p><a href="https://sethmlarson.dev/urllib3-is-fundraising-for-http2-support">urllib3 is raising ~$40,000 USD</a> to release HTTP/2 support and ensure long-term sustainable maintenance of the project. If your company or organization uses Python and would benefit from HTTP/2 support in Requests, pip, cloud SDKs, and thousands of other projects <a href="https://opencollective.com/urllib3">please consider contributing financially</a> to ensure HTTP/2 support is developed sustainably and maintained for the long-haul.</p> <p>Thank you for your support.</p> <h2>Security</h2> <p>Fixed the following security issues:</p> <ul> <li>The TLS configuration for HTTPS proxies could be ignored or overridden. (High severity, GHSA-8988-9cw3-xx77)</li> <li><code>HTTPResponse.stream()</code> and <code>read_chunked()</code> could buffer a chunk-size line of unbounded length in memory. (High severity, GHSA-vxq7-64xx-v4gw)</li> <li>Chunked Deflate streaming could enter an infinite loop. (Medium severity, GHSA-gh4c-6fx4-qh6g)</li> </ul> <blockquote> <p>[!IMPORTANT] urllib3 2.8.0 fixes HTTPS proxy TLS configuration being ignored or overridden by destination settings. Configurations relying on that behavior may require changes.</p> <p>Configure proxy CA certificates and client certificates in <code>proxy_ssl_context</code>, and proxy identity checks with <code>proxy_assert_hostname</code> or <code>proxy_assert_fingerprint</code>. Destination client certificates and identity overrides no longer apply to HTTPS forwarding proxy connections.</p> </blockquote> <blockquote> <p>[!NOTE] CVE IDs had not yet been assigned to these advisories at the time of release due to a backlog at GitHub's CNA.</p> </blockquote> <h2>Deprecations & Removals</h2> <ul> <li>Deprecated using an empty collection as the <code>Retry</code> option <code>allowed_methods</code> to retry any verb. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5044">#5044</a>)</li> </ul> <h2>Features</h2> <ul> <li>Added <code>Url.auth_decoded</code> and <code>Url.auth_decoded_joined</code> convenience properties to the result of <code>parse_url()</code>. (<a href="https://redirect.github.com/urllib3/urllib3/issues/4945">#4945</a>)</li> <li>Added <code>basic_auth_encoding</code> and <code>proxy_basic_auth_encoding</code> parameters to <code>urllib3.util.make_headers()</code>. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5092">#5092</a>)</li> </ul> <h2>Bugfixes</h2> <ul> <li> <p>Fixed response header handling to replace obsolete folded header lines (<code>obs-fold</code>) with spaces in accordance with RFC 9112, preventing raw CRLF sequences from appearing in header values such as <code>Set-Cookie</code>. (<a href="https://redirect.github.com/urllib3/urllib3/issues/1362">#1362</a>)</p> </li> <li> <p>Fixed usage of <code>proxy_ssl_context</code> with <code>ProxyManager</code> when <code>use_forwarding_for_https=True</code>. Passing <code>ssl_context</code> instead of <code>proxy_ssl_context</code> for HTTPS proxies in this configuration now emits a <code>FutureWarning</code> and will raise an error in v3.0. (<a href="https://redirect.github.com/urllib3/urllib3/issues/2577">#2577</a>)</p> </li> <li> <p>Changed behavior of the default <code>ConnectionPool.pool</code> initialization. <code>LifoQueue</code> is now resolved from the <code>queue</code> module after the <code>ConnectionPool</code> is instantiated instead of using the default cached <code>QueueCls</code> class property. This is done because sometimes the <code>queue.LifoQueue</code> is monkey-patched late in the program, such as by gevent. (<a href="https://redirect.github.com/urllib3/urllib3/issues/3289">#3289</a>)</p> </li> <li> <p>Raised <code>UnrewindableBodyError</code> instead of <code>ValueError</code> when retrying a request whose body had <code>tell()</code> but not <code>seek()</code>. (<a href="https://redirect.github.com/urllib3/urllib3/issues/3779">#3779</a>)</p> </li> <li> <p>Decoded percent-encoded SOCKS proxy credentials before authenticating with the proxy server. (<a href="https://redirect.github.com/urllib3/urllib3/issues/3785">#3785</a>)</p> </li> <li> <p>Fixed <code>HTTPResponse.drain_conn()</code> to discard unread response data in 64 KiB chunks (same as the default <code>amt</code> when doing <code>HTTPResponse.stream(...)</code>). (<a href="https://redirect.github.com/urllib3/urllib3/issues/5019">#5019</a>)</p> </li> <li> <p>Fixed <code>is_ipaddress()</code> to detect non-standard IPv4 forms accepted by <code>socket.connect</code>, such as hex (<code>0x7f000001</code>), octal (<code>0177.0.0.1</code>), and decimal integers (<code>2130706433</code>), ensuring SSL certificate verification uses the correct mode for these addresses. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5029">#5029</a>)</p> </li> <li> <p>Fixed <code>HTTPConnectionPool.urlopen</code> raising a misleading <code>FullPoolError</code> instead of <code>ValueError</code> when called with an invalid <code>timeout</code> argument on a pool created with <code>block=True</code>. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5059">#5059</a>)</p> </li> <li> <p>Fixed port-zero handling to preserve explicit <code>:0</code> values instead of substituting the default ports 80 or 443 in URL parsing, pool selection, proxy configuration, <code>connection_from_url()</code>, and HTTP/2 request authority. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5071">#5071</a>, <a href="https://redirect.github.com/urllib3/urllib3/issues/5101">#5101</a>)</p> </li> <li> <p>Fixed a bug where <code>PoolManager</code> passed the <code>assert_hostname</code> and <code>assert_fingerprint</code> parameters to HTTP connection pools. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5077">#5077</a>)</p> </li> <li> <p>Fixed <code>HTTPConnectionPool.urlopen()</code> and HTTP proxy forwarding to strip URL fragments from absolute request targets before sending requests. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5079">#5079</a>)</p> </li> <li> <p>Added safeguards to the proxy tunneling code to prevent potential security issues when handling invalid characters in the proxy host and HTTP headers. This change affects users of Python 3.10, Python 3.11, and Python 3.12 when the standard library does not contain the fix; those on newer Python versions should upgrade to 3.13.14+ or 3.14.5+ to get the same security fixes. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5091">#5091</a>)</p> </li> <li> <p>Fixed <code>HTTPSConnection.connect()</code> overriding <code>ProxyConfig.ssl_context</code>'s certificate policy and proxy identity checks with the target connection's TLS settings when forwarding through an HTTPS proxy.</p> <p><code>HTTPSConnection</code> no longer applies target SNI, assertions, or client credentials to forwarding proxy handshakes and continues to use its <code>ssl_context</code> as a fallback when an HTTPS proxy forwards an HTTP target. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5093">#5093</a>)</p> </li> <li> <p>Fixed URL parsing to more strictly enforce RFC 3986 host syntax, rejecting invalid host input such as raw spaces and control characters, malformed percent-encodings, and percent-encoded control characters in HTTP(S) hosts and IPv6 zone identifiers, including proxy CONNECT tunnel targets. Host normalization now also follows RFC 3986 normalization rules for percent-encoded octets by decoding percent-encoded unreserved characters and uppercasing the hexadecimal digits of retained percent-encoded octets. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5095">#5095</a>)</p> </li> </ul> <!-- raw HTML omitted --> </blockquote> <p>... (truncated)</p> </details> <details> <summary>Changelog</summary> <p><em>Sourced from <a href="https://github.com/urllib3/urllib3/blob/main/CHANGES.rst">urllib3's changelog</a>.</em></p> <blockquote> <h1>2.8.0 (2026-09-15)</h1> <h2>Security</h2> <p>Fixed the following security issues:</p> <ul> <li>The TLS configuration for HTTPS proxies could be ignored or overridden. (High severity, <code>GHSA-8988-9cw3-xx77 <https://github.com/urllib3/urllib3/security/advisories/GHSA-8988-9cw3-xx77></code>__)</li> <li><code>HTTPResponse.stream()</code> and <code>read_chunked()</code> could buffer a chunk-size line of unbounded length in memory. (High severity, <code>GHSA-vxq7-64xx-v4gw <https://github.com/urllib3/urllib3/security/advisories/GHSA-vxq7-64xx-v4gw></code>__)</li> <li>Chunked Deflate streaming could enter an infinite loop. (Medium severity, <code>GHSA-gh4c-6fx4-qh6g <https://github.com/urllib3/urllib3/security/advisories/GHSA-gh4c-6fx4-qh6g></code>__)</li> </ul> <p>.. caution::</p> <pre><code>urllib3 2.8.0 fixes HTTPS proxy TLS configuration being ignored or overridden by destination settings. Configurations relying on that behavior may require changes. <p>Configure proxy CA certificates and client certificates in <code>proxy_ssl_context</code>, and proxy identity checks with <code>proxy_assert_hostname</code> or <code>proxy_assert_fingerprint</code>. Destination client certificates and identity overrides no longer apply to HTTPS forwarding proxy connections. </code></pre></p> <h2>Deprecations & Removals</h2> <ul> <li>Deprecated using an empty collection as the <code>Retry</code> option <code>allowed_methods</code> to retry any verb. (<code>[#5044](https://github.com/urllib3/urllib3/issues/5044) <https://github.com/urllib3/urllib3/issues/5044></code>__)</li> </ul> <h2>Features</h2> <ul> <li>Added <code>Url.auth_decoded</code> and <code>Url.auth_decoded_joined</code> convenience properties to the result of <code>parse_url()</code>. (<code>[#4945](https://github.com/urllib3/urllib3/issues/4945) <https://github.com/urllib3/urllib3/issues/4945></code>__)</li> <li>Added <code>basic_auth_encoding</code> and <code>proxy_basic_auth_encoding</code> parameters to <code>urllib3.util.make_headers()</code>. (<code>[#5092](https://github.com/urllib3/urllib3/issues/5092) <https://github.com/urllib3/urllib3/issues/5092></code>__)</li> </ul> <h2>Bugfixes</h2> <!-- raw HTML omitted --> </blockquote> <p>... (truncated)</p> </details> <details> <summary>Commits</summary> <ul> <li><a href="https://github.com/urllib3/urllib3/commit/b1d30ab61fe0db8f11092805e8c5ac43e091064a"><code>b1d30ab</code></a> Release 2.8.0</li> <li><a href="https://github.com/urllib3/urllib3/commit/9016d7e8afc68185496ef07f3c3a4a743d04922e"><code>9016d7e</code></a> Skip <code>test_read_chunked_with_trailing_data_does_not_hang</code> for brotlicffi (<a href="https://redirect.github.com/urllib3/urllib3/issues/5258">#5258</a>)</li> <li><a href="https://github.com/urllib3/urllib3/commit/9101f581a8b3659af23b6ff335ae77200ca33533"><code>9101f58</code></a> Fix <code>nox -s docs</code> warning (<a href="https://redirect.github.com/urllib3/urllib3/issues/5256">#5256</a>)</li> <li><a href="https://github.com/urllib3/urllib3/commit/cd770b059b543be29298ea5c52afb0b1b090f5ed"><code>cd770b0</code></a> Merge commit from fork</li> <li><a href="https://github.com/urllib3/urllib3/commit/ea2ad7b21a80da3632f80016526a18864586077f"><code>ea2ad7b</code></a> Merge commit from fork</li> <li><a href="https://github.com/urllib3/urllib3/commit/0716e31534345dc1599ea95d903c79f276239bd8"><code>0716e31</code></a> Fix loading unencrypted client keys with a password in pyOpenSSL (<a href="https://redirect.github.com/urllib3/urllib3/issues/5255">#5255</a>)</li> <li><a href="https://github.com/urllib3/urllib3/commit/43c68c8b43a9dcb44ed2cf4ec91384ca0d46b37d"><code>43c68c8</code></a> Test pickling of <code>InvalidChunkLength</code> (<a href="https://redirect.github.com/urllib3/urllib3/issues/5247">#5247</a>)</li> <li><a href="https://github.com/urllib3/urllib3/commit/308b279b3fb28e7bee952e152ec5baeb5bfd0817"><code>308b279</code></a> Share security policy between GitHub and Read the Docs (<a href="https://redirect.github.com/urllib3/urllib3/issues/5253">#5253</a>)</li> <li><a href="https://github.com/urllib3/urllib3/commit/53fa0731b27d4b71ab0755ea5b896422d005d706"><code>53fa073</code></a> Add policy on duplicate pull requests (<a href="https://redirect.github.com/urllib3/urllib3/issues/5252">#5252</a>)</li> <li><a href="https://github.com/urllib3/urllib3/commit/5f2a6a843d0100d1351c3f94d58581ca98d17267"><code>5f2a6a8</code></a> Assert on the ALPN extension in test_tunnel_sets_http_11_alpn (<a href="https://redirect.github.com/urllib3/urllib3/issues/5232">#5232</a>)</li> <li>Additional commits viewable in <a href="https://github.com/urllib3/urllib3/compare/2.7.0...2.8.0">compare view</a></li> </ul> </details> <br /> Updates `urllib3` from 2.7.0 to 2.8.0 <details> <summary>Release notes</summary> <p><em>Sourced from <a href="https://github.com/urllib3/urllib3/releases">urllib3's releases</a>.</em></p> <blockquote> <h2>2.8.0</h2> <h2>🚀 urllib3 is fundraising for HTTP/2 support</h2> <p><a href="https://sethmlarson.dev/urllib3-is-fundraising-for-http2-support">urllib3 is raising ~$40,000 USD</a> to release HTTP/2 support and ensure long-term sustainable maintenance of the project. If your company or organization uses Python and would benefit from HTTP/2 support in Requests, pip, cloud SDKs, and thousands of other projects <a href="https://opencollective.com/urllib3">please consider contributing financially</a> to ensure HTTP/2 support is developed sustainably and maintained for the long-haul.</p> <p>Thank you for your support.</p> <h2>Security</h2> <p>Fixed the following security issues:</p> <ul> <li>The TLS configuration for HTTPS proxies could be ignored or overridden. (High severity, GHSA-8988-9cw3-xx77)</li> <li><code>HTTPResponse.stream()</code> and <code>read_chunked()</code> could buffer a chunk-size line of unbounded length in memory. (High severity, GHSA-vxq7-64xx-v4gw)</li> <li>Chunked Deflate streaming could enter an infinite loop. (Medium severity, GHSA-gh4c-6fx4-qh6g)</li> </ul> <blockquote> <p>[!IMPORTANT] urllib3 2.8.0 fixes HTTPS proxy TLS configuration being ignored or overridden by destination settings. Configurations relying on that behavior may require changes.</p> <p>Configure proxy CA certificates and client certificates in <code>proxy_ssl_context</code>, and proxy identity checks with <code>proxy_assert_hostname</code> or <code>proxy_assert_fingerprint</code>. Destination client certificates and identity overrides no longer apply to HTTPS forwarding proxy connections.</p> </blockquote> <blockquote> <p>[!NOTE] CVE IDs had not yet been assigned to these advisories at the time of release due to a backlog at GitHub's CNA.</p> </blockquote> <h2>Deprecations & Removals</h2> <ul> <li>Deprecated using an empty collection as the <code>Retry</code> option <code>allowed_methods</code> to retry any verb. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5044">#5044</a>)</li> </ul> <h2>Features</h2> <ul> <li>Added <code>Url.auth_decoded</code> and <code>Url.auth_decoded_joined</code> convenience properties to the result of <code>parse_url()</code>. (<a href="https://redirect.github.com/urllib3/urllib3/issues/4945">#4945</a>)</li> <li>Added <code>basic_auth_encoding</code> and <code>proxy_basic_auth_encoding</code> parameters to <code>urllib3.util.make_headers()</code>. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5092">#5092</a>)</li> </ul> <h2>Bugfixes</h2> <ul> <li> <p>Fixed response header handling to replace obsolete folded header lines (<code>obs-fold</code>) with spaces in accordance with RFC 9112, preventing raw CRLF sequences from appearing in header values such as <code>Set-Cookie</code>. (<a href="https://redirect.github.com/urllib3/urllib3/issues/1362">#1362</a>)</p> </li> <li> <p>Fixed usage of <code>proxy_ssl_context</code> with <code>ProxyManager</code> when <code>use_forwarding_for_https=True</code>. Passing <code>ssl_context</code> instead of <code>proxy_ssl_context</code> for HTTPS proxies in this configuration now emits a <code>FutureWarning</code> and will raise an error in v3.0. (<a href="https://redirect.github.com/urllib3/urllib3/issues/2577">#2577</a>)</p> </li> <li> <p>Changed behavior of the default <code>ConnectionPool.pool</code> initialization. <code>LifoQueue</code> is now resolved from the <code>queue</code> module after the <code>ConnectionPool</code> is instantiated instead of using the default cached <code>QueueCls</code> class property. This is done because sometimes the <code>queue.LifoQueue</code> is monkey-patched late in the program, such as by gevent. (<a href="https://redirect.github.com/urllib3/urllib3/issues/3289">#3289</a>)</p> </li> <li> <p>Raised <code>UnrewindableBodyError</code> instead of <code>ValueError</code> when retrying a request whose body had <code>tell()</code> but not <code>seek()</code>. (<a href="https://redirect.github.com/urllib3/urllib3/issues/3779">#3779</a>)</p> </li> <li> <p>Decoded percent-encoded SOCKS proxy credentials before authenticating with the proxy server. (<a href="https://redirect.github.com/urllib3/urllib3/issues/3785">#3785</a>)</p> </li> <li> <p>Fixed <code>HTTPResponse.drain_conn()</code> to discard unread response data in 64 KiB chunks (same as the default <code>amt</code> when doing <code>HTTPResponse.stream(...)</code>). (<a href="https://redirect.github.com/urllib3/urllib3/issues/5019">#5019</a>)</p> </li> <li> <p>Fixed <code>is_ipaddress()</code> to detect non-standard IPv4 forms accepted by <code>socket.connect</code>, such as hex (<code>0x7f000001</code>), octal (<code>0177.0.0.1</code>), and decimal integers (<code>2130706433</code>), ensuring SSL certificate verification uses the correct mode for these addresses. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5029">#5029</a>)</p> </li> <li> <p>Fixed <code>HTTPConnectionPool.urlopen</code> raising a misleading <code>FullPoolError</code> instead of <code>ValueError</code> when called with an invalid <code>timeout</code> argument on a pool created with <code>block=True</code>. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5059">#5059</a>)</p> </li> <li> <p>Fixed port-zero handling to preserve explicit <code>:0</code> values instead of substituting the default ports 80 or 443 in URL parsing, pool selection, proxy configuration, <code>connection_from_url()</code>, and HTTP/2 request authority. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5071">#5071</a>, <a href="https://redirect.github.com/urllib3/urllib3/issues/5101">#5101</a>)</p> </li> <li> <p>Fixed a bug where <code>PoolManager</code> passed the <code>assert_hostname</code> and <code>assert_fingerprint</code> parameters to HTTP connection pools. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5077">#5077</a>)</p> </li> <li> <p>Fixed <code>HTTPConnectionPool.urlopen()</code> and HTTP proxy forwarding to strip URL fragments from absolute request targets before sending requests. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5079">#5079</a>)</p> </li> <li> <p>Added safeguards to the proxy tunneling code to prevent potential security issues when handling invalid characters in the proxy host and HTTP headers. This change affects users of Python 3.10, Python 3.11, and Python 3.12 when the standard library does not contain the fix; those on newer Python versions should upgrade to 3.13.14+ or 3.14.5+ to get the same security fixes. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5091">#5091</a>)</p> </li> <li> <p>Fixed <code>HTTPSConnection.connect()</code> overriding <code>ProxyConfig.ssl_context</code>'s certificate policy and proxy identity checks with the target connection's TLS settings when forwarding through an HTTPS proxy.</p> <p><code>HTTPSConnection</code> no longer applies target SNI, assertions, or client credentials to forwarding proxy handshakes and continues to use its <code>ssl_context</code> as a fallback when an HTTPS proxy forwards an HTTP target. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5093">#5093</a>)</p> </li> <li> <p>Fixed URL parsing to more strictly enforce RFC 3986 host syntax, rejecting invalid host input such as raw spaces and control characters, malformed percent-encodings, and percent-encoded control characters in HTTP(S) hosts and IPv6 zone identifiers, including proxy CONNECT tunnel targets. Host normalization now also follows RFC 3986 normalization rules for percent-encoded octets by decoding percent-encoded unreserved characters and uppercasing the hexadecimal digits of retained percent-encoded octets. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5095">#5095</a>)</p> </li> </ul> <!-- raw HTML omitted --> </blockquote> <p>... (truncated)</p> </details> <details> <summary>Changelog</summary> <p><em>Sourced from <a href="https://github.com/urllib3/urllib3/blob/main/CHANGES.rst">urllib3's changelog</a>.</em></p> <blockquote> <h1>2.8.0 (2026-09-15)</h1> <h2>Security</h2> <p>Fixed the following security issues:</p> <ul> <li>The TLS configuration for HTTPS proxies could be ignored or overridden. (High severity, <code>GHSA-8988-9cw3-xx77 <https://github.com/urllib3/urllib3/security/advisories/GHSA-8988-9cw3-xx77></code>__)</li> <li><code>HTTPResponse.stream()</code> and <code>read_chunked()</code> could buffer a chunk-size line of unbounded length in memory. (High severity, <code>GHSA-vxq7-64xx-v4gw <https://github.com/urllib3/urllib3/security/advisories/GHSA-vxq7-64xx-v4gw></code>__)</li> <li>Chunked Deflate streaming could enter an infinite loop. (Medium severity, <code>GHSA-gh4c-6fx4-qh6g <https://github.com/urllib3/urllib3/security/advisories/GHSA-gh4c-6fx4-qh6g></code>__)</li> </ul> <p>.. caution::</p> <pre><code>urllib3 2.8.0 fixes HTTPS proxy TLS configuration being ignored or overridden by destination settings. Configurations relying on that behavior may require changes. <p>Configure proxy CA certificates and client certificates in <code>proxy_ssl_context</code>, and proxy identity checks with <code>proxy_assert_hostname</code> or <code>proxy_assert_fingerprint</code>. Destination client certificates and identity overrides no longer apply to HTTPS forwarding proxy connections. </code></pre></p> <h2>Deprecations & Removals</h2> <ul> <li>Deprecated using an empty collection as the <code>Retry</code> option <code>allowed_methods</code> to retry any verb. (<code>[#5044](https://github.com/urllib3/urllib3/issues/5044) <https://github.com/urllib3/urllib3/issues/5044></code>__)</li> </ul> <h2>Features</h2> <ul> <li>Added <code>Url.auth_decoded</code> and <code>Url.auth_decoded_joined</code> convenience properties to the result of <code>parse_url()</code>. (<code>[#4945](https://github.com/urllib3/urllib3/issues/4945) <https://github.com/urllib3/urllib3/issues/4945></code>__)</li> <li>Added <code>basic_auth_encoding</code> and <code>proxy_basic_auth_encoding</code> parameters to <code>urllib3.util.make_headers()</code>. (<code>[#5092](https://github.com/urllib3/urllib3/issues/5092) <https://github.com/urllib3/urllib3/issues/5092></code>__)</li> </ul> <h2>Bugfixes</h2> <!-- raw HTML omitted --> </blockquote> <p>... (truncated)</p> </details> <details> <summary>Commits</summary> <ul> <li><a href="https://github.com/urllib3/urllib3/commit/b1d30ab61fe0db8f11092805e8c5ac43e091064a"><code>b1d30ab</code></a> Release 2.8.0</li> <li><a href="https://github.com/urllib3/urllib3/commit/9016d7e8afc68185496ef07f3c3a4a743d04922e"><code>9016d7e</code></a> Skip <code>test_read_chunked_with_trailing_data_does_not_hang</code> for brotlicffi (<a href="https://redirect.github.com/urllib3/urllib3/issues/5258">#5258</a>)</li> <li><a href="https://github.com/urllib3/urllib3/commit/9101f581a8b3659af23b6ff335ae77200ca33533"><code>9101f58</code></a> Fix <code>nox -s docs</code> warning (<a href="https://redirect.github.com/urllib3/urllib3/issues/5256">#5256</a>)</li> <li><a href="https://github.com/urllib3/urllib3/commit/cd770b059b543be29298ea5c52afb0b1b090f5ed"><code>cd770b0</code></a> Merge commit from fork</li> <li><a href="https://github.com/urllib3/urllib3/commit/ea2ad7b21a80da3632f80016526a18864586077f"><code>ea2ad7b</code></a> Merge commit from fork</li> <li><a href="https://github.com/urllib3/urllib3/commit/0716e31534345dc1599ea95d903c79f276239bd8"><code>0716e31</code></a> Fix loading unencrypted client keys with a password in pyOpenSSL (<a href="https://redirect.github.com/urllib3/urllib3/issues/5255">#5255</a>)</li> <li><a href="https://github.com/urllib3/urllib3/commit/43c68c8b43a9dcb44ed2cf4ec91384ca0d46b37d"><code>43c68c8</code></a> Test pickling of <code>InvalidChunkLength</code> (<a href="https://redirect.github.com/urllib3/urllib3/issues/5247">#5247</a>)</li> <li><a href="https://github.com/urllib3/urllib3/commit/308b279b3fb28e7bee952e152ec5baeb5bfd0817"><code>308b279</code></a> Share security policy between GitHub and Read the Docs (<a href="https://redirect.github.com/urllib3/urllib3/issues/5253">#5253</a>)</li> <li><a href="https://github.com/urllib3/urllib3/commit/53fa0731b27d4b71ab0755ea5b896422d005d706"><code>53fa073</code></a> Add policy on duplicate pull requests (<a href="https://redirect.github.com/urllib3/urllib3/issues/5252">#5252</a>)</li> <li><a href="https://github.com/urllib3/urllib3/commit/5f2a6a843d0100d1351c3f94d58581ca98d17267"><code>5f2a6a8</code></a> Assert on the ALPN extension in test_tunnel_sets_http_11_alpn (<a href="https://redirect.github.com/urllib3/urllib3/issues/5232">#5232</a>)</li> <li>Additional commits viewable in <a href="https://github.com/urllib3/urllib3/compare/2.7.0...2.8.0">compare view</a></li> </ul> </details> <br /> Updates `urllib3` from 2.7.0 to 2.8.0 <details> <summary>Release notes</summary> <p><em>Sourced from <a href="https://github.com/urllib3/urllib3/releases">urllib3's releases</a>.</em></p> <blockquote> <h2>2.8.0</h2> <h2>🚀 urllib3 is fundraising for HTTP/2 support</h2> <p><a href="https://sethmlarson.dev/urllib3-is-fundraising-for-http2-support">urllib3 is raising ~$40,000 USD</a> to release HTTP/2 support and ensure long-term sustainable maintenance of the project. If your company or organization uses Python and would benefit from HTTP/2 support in Requests, pip, cloud SDKs, and thousands of other projects <a href="https://opencollective.com/urllib3">please consider contributing financially</a> to ensure HTTP/2 support is developed sustainably and maintained for the long-haul.</p> <p>Thank you for your support.</p> <h2>Security</h2> <p>Fixed the following security issues:</p> <ul> <li>The TLS configuration for HTTPS proxies could be ignored or overridden. (High severity, GHSA-8988-9cw3-xx77)</li> <li><code>HTTPResponse.stream()</code> and <code>read_chunked()</code> could buffer a chunk-size line of unbounded length in memory. (High severity, GHSA-vxq7-64xx-v4gw)</li> <li>Chunked Deflate streaming could enter an infinite loop. (Medium severity, GHSA-gh4c-6fx4-qh6g)</li> </ul> <blockquote> <p>[!IMPORTANT] urllib3 2.8.0 fixes HTTPS proxy TLS configuration being ignored or overridden by destination settings. Configurations relying on that behavior may require changes.</p> <p>Configure proxy CA certificates and client certificates in <code>proxy_ssl_context</code>, and proxy identity checks with <code>proxy_assert_hostname</code> or <code>proxy_assert_fingerprint</code>. Destination client certificates and identity overrides no longer apply to HTTPS forwarding proxy connections.</p> </blockquote> <blockquote> <p>[!NOTE] CVE IDs had not yet been assigned to these advisories at the time of release due to a backlog at GitHub's CNA.</p> </blockquote> <h2>Deprecations & Removals</h2> <ul> <li>Deprecated using an empty collection as the <code>Retry</code> option <code>allowed_methods</code> to retry any verb. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5044">#5044</a>)</li> </ul> <h2>Features</h2> <ul> <li>Added <code>Url.auth_decoded</code> and <code>Url.auth_decoded_joined</code> convenience properties to the result of <code>parse_url()</code>. (<a href="https://redirect.github.com/urllib3/urllib3/issues/4945">#4945</a>)</li> <li>Added <code>basic_auth_encoding</code> and <code>proxy_basic_auth_encoding</code> parameters to <code>urllib3.util.make_headers()</code>. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5092">#5092</a>)</li> </ul> <h2>Bugfixes</h2> <ul> <li> <p>Fixed response header handling to replace obsolete folded header lines (<code>obs-fold</code>) with spaces in accordance with RFC 9112, preventing raw CRLF sequences from appearing in header values such as <code>Set-Cookie</code>. (<a href="https://redirect.github.com/urllib3/urllib3/issues/1362">#1362</a>)</p> </li> <li> <p>Fixed usage of <code>proxy_ssl_context</code> with <code>ProxyManager</code> when <code>use_forwarding_for_https=True</code>. Passing <code>ssl_context</code> instead of <code>proxy_ssl_context</code> for HTTPS proxies in this configuration now emits a <code>FutureWarning</code> and will raise an error in v3.0. (<a href="https://redirect.github.com/urllib3/urllib3/issues/2577">#2577</a>)</p> </li> <li> <p>Changed behavior of the default <code>ConnectionPool.pool</code> initialization. <code>LifoQueue</code> is now resolved from the <code>queue</code> module after the <code>ConnectionPool</code> is instantiated instead of using the default cached <code>QueueCls</code> class property. This is done because sometimes the <code>queue.LifoQueue</code> is monkey-patched late in the program, such as by gevent. (<a href="https://redirect.github.com/urllib3/urllib3/issues/3289">#3289</a>)</p> </li> <li> <p>Raised <code>UnrewindableBodyError</code> instead of <code>ValueError</code> when retrying a request whose body had <code>tell()</code> but not <code>seek()</code>. (<a href="https://redirect.github.com/urllib3/urllib3/issues/3779">#3779</a>)</p> </li> <li> <p>Decoded percent-encoded SOCKS proxy credentials before authenticating with the proxy server. (<a href="https://redirect.github.com/urllib3/urllib3/issues/3785">#3785</a>)</p> </li> <li> <p>Fixed <code>HTTPResponse.drain_conn()</code> to discard unread response data in 64 KiB chunks (same as the default <code>amt</code> when doing <code>HTTPResponse.stream(...)</code>). (<a href="https://redirect.github.com/urllib3/urllib3/issues/5019">#5019</a>)</p> </li> <li> <p>Fixed <code>is_ipaddress()</code> to detect non-standard IPv4 forms accepted by <code>socket.connect</code>, such as hex (<code>0x7f000001</code>), octal (<code>0177.0.0.1</code>), and decimal integers (<code>2130706433</code>), ensuring SSL certificate verification uses the correct mode for these addresses. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5029">#5029</a>)</p> </li> <li> <p>Fixed <code>HTTPConnectionPool.urlopen</code> raising a misleading <code>FullPoolError</code> instead of <code>ValueError</code> when called with an invalid <code>timeout</code> argument on a pool created with <code>block=True</code>. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5059">#5059</a>)</p> </li> <li> <p>Fixed port-zero handling to preserve explicit <code>:0</code> values instead of substituting the default ports 80 or 443 in URL parsing, pool selection, proxy configuration, <code>connection_from_url()</code>, and HTTP/2 request authority. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5071">#5071</a>, <a href="https://redirect.github.com/urllib3/urllib3/issues/5101">#5101</a>)</p> </li> <li> <p>Fixed a bug where <code>PoolManager</code> passed the <code>assert_hostname</code> and <code>assert_fingerprint</code> parameters to HTTP connection pools. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5077">#5077</a>)</p> </li> <li> <p>Fixed <code>HTTPConnectionPool.urlopen()</code> and HTTP proxy forwarding to strip URL fragments from absolute request targets before sending requests. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5079">#5079</a>)</p> </li> <li> <p>Added safeguards to the proxy tunneling code to prevent potential security issues when handling invalid characters in the proxy host and HTTP headers. This change affects users of Python 3.10, Python 3.11, and Python 3.12 when the standard library does not contain the fix; those on newer Python versions should upgrade to 3.13.14+ or 3.14.5+ to get the same security fixes. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5091">#5091</a>)</p> </li> <li> <p>Fixed <code>HTTPSConnection.connect()</code> overriding <code>ProxyConfig.ssl_context</code>'s certificate policy and proxy identity checks with the target connection's TLS settings when forwarding through an HTTPS proxy.</p> <p><code>HTTPSConnection</code> no longer applies target SNI, assertions, or client credentials to forwarding proxy handshakes and continues to use its <code>ssl_context</code> as a fallback when an HTTPS proxy forwards an HTTP target. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5093">#5093</a>)</p> </li> <li> <p>Fixed URL parsing to more strictly enforce RFC 3986 host syntax, rejecting invalid host input such as raw spaces and control characters, malformed percent-encodings, and percent-encoded control characters in HTTP(S) hosts and IPv6 zone identifiers, including proxy CONNECT tunnel targets. Host normalization now also follows RFC 3986 normalization rules for percent-encoded octets by decoding percent-encoded unreserved characters and uppercasing the hexadecimal digits of retained percent-encoded octets. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5095">#5095</a>)</p> </li> </ul> <!-- raw HTML omitted --> </blockquote> <p>... (truncated)</p> </details> <details> <summary>Changelog</summary> <p><em>Sourced from <a href="https://github.com/urllib3/urllib3/blob/main/CHANGES.rst">urllib3's changelog</a>.</em></p> <blockquote> <h1>2.8.0 (2026-09-15)</h1> <h2>Security</h2> <p>Fixed the following security issues:</p> <ul> <li>The TLS configuration for HTTPS proxies could be ignored or overridden. (High severity, <code>GHSA-8988-9cw3-xx77 <https://github.com/urllib3/urllib3/security/advisories/GHSA-8988-9cw3-xx77></code>__)</li> <li><code>HTTPResponse.stream()</code> and <code>read_chunked()</code> could buffer a chunk-size line of unbounded length in memory. (High severity, <code>GHSA-vxq7-64xx-v4gw <https://github.com/urllib3/urllib3/security/advisories/GHSA-vxq7-64xx-v4gw></code>__)</li> <li>Chunked Deflate streaming could enter an infinite loop. (Medium severity, <code>GHSA-gh4c-6fx4-qh6g <https://github.com/urllib3/urllib3/security/advisories/GHSA-gh4c-6fx4-qh6g></code>__)</li> </ul> <p>.. caution::</p> <pre><code>urllib3 2.8.0 fixes HTTPS proxy TLS configuration being ignored or overridden by destination settings. Configurations relying on that behavior may require changes. <p>Configure proxy CA certificates and client certificates in <code>proxy_ssl_context</code>, and proxy identity checks with <code>proxy_assert_hostname</code> or <code>proxy_assert_fingerprint</code>. Destination client certificates and identity overrides no longer apply to HTTPS forwarding proxy connections. </code></pre></p> <h2>Deprecations & Removals</h2> <ul> <li>Deprecated using an empty collection as the <code>Retry</code> option <code>allowed_methods</code> to retry any verb. (<code>[#5044](https://github.com/urllib3/urllib3/issues/5044) <https://github.com/urllib3/urllib3/issues/5044></code>__)</li> </ul> <h2>Features</h2> <ul> <li>Added <code>Url.auth_decoded</code> and <code>Url.auth_decoded_joined</code> convenience properties to the result of <code>parse_url()</code>. (<code>[#4945](https://github.com/urllib3/urllib3/issues/4945) <https://github.com/urllib3/urllib3/issues/4945></code>__)</li> <li>Added <code>basic_auth_encoding</code> and <code>proxy_basic_auth_encoding</code> parameters to <code>urllib3.util.make_headers()</code>. (<code>[#5092](https://github.com/urllib3/urllib3/issues/5092) <https://github.com/urllib3/urllib3/issues/5092></code>__)</li> </ul> <h2>Bugfixes</h2> <!-- raw HTML omitted --> </blockquote> <p>... (truncated)</p> </details> <details> <summary>Commits</summary> <ul> <li><a href="https://github.com/urllib3/urllib3/commit/b1d30ab61fe0db8f11092805e8c5ac43e091064a"><code>b1d30ab</code></a> Release 2.8.0</li> <li><a href="https://github.com/urllib3/urllib3/commit/9016d7e8afc68185496ef07f3c3a4a743d04922e"><code>9016d7e</code></a> Skip <code>test_read_chunked_with_trailing_data_does_not_hang</code> for brotlicffi (<a href="https://redirect.github.com/urllib3/urllib3/issues/5258">#5258</a>)</li> <li><a href="https://github.com/urllib3/urllib3/commit/9101f581a8b3659af23b6ff335ae77200ca33533"><code>9101f58</code></a> Fix <code>nox -s docs</code> warning (<a href="https://redirect.github.com/urllib3/urllib3/issues/5256">#5256</a>)</li> <li><a href="https://github.com/urllib3/urllib3/commit/cd770b059b543be29298ea5c52afb0b1b090f5ed"><code>cd770b0</code></a> Merge commit from fork</li> <li><a href="https://github.com/urllib3/urllib3/commit/ea2ad7b21a80da3632f80016526a18864586077f"><code>ea2ad7b</code></a> Merge commit from fork</li> <li><a href="https://github.com/urllib3/urllib3/commit/0716e31534345dc1599ea95d903c79f276239bd8"><code>0716e31</code></a> Fix loading unencrypted client keys with a password in pyOpenSSL (<a href="https://redirect.github.com/urllib3/urllib3/issues/5255">#5255</a>)</li> <li><a href="https://github.com/urllib3/urllib3/commit/43c68c8b43a9dcb44ed2cf4ec91384ca0d46b37d"><code>43c68c8</code></a> Test pickling of <code>InvalidChunkLength</code> (<a href="https://redirect.github.com/urllib3/urllib3/issues/5247">#5247</a>)</li> <li><a href="https://github.com/urllib3/urllib3/commit/308b279b3fb28e7bee952e152ec5baeb5bfd0817"><code>308b279</code></a> Share security policy between GitHub and Read the Docs (<a href="https:... _Description has been truncated_ --------- Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> Co-authored-by: Richard Levasseur <richardlev@gmail.com>
This repository is the home of the core Python rules -- py_library, py_binary, py_test, and related symbols that provide the basis for Python support in Bazel. It also contains package installation rules for integrating with PyPI and other indices.
Documentation for rules_python is at https://rules-python.readthedocs.io and in the Bazel Build Encyclopedia.
Examples live in the examples directory.
The core rules are stable. Their implementation is subject to Bazel's backward compatibility policy. This repository aims to follow semantic versioning.
The Bazel community maintains this repository. Neither Google nor the Bazel team provides support for the code. However, this repository is part of the test suite used to vet new Bazel releases. See How to contribute page for information on our development workflow.
requirements.txt is how users have been defining dependencies for a long time. We support this to support legacy usecases or package managers that we don't support directly. Any additional information that we need will be retrieved from the SimpleAPI during the bzlmod extension evaluation phase. Then it will be written to the MODULE.bazel.lock file for future reuse. We have plans to support uv.lock file directly. uv is recommended for generating a fully locked requirements.txt file and we do provide a rule for it.py_binary, py_test rules should scale to large monorepos and we work hard to minimize the work done during analysis and build phase. What is more, the space requirements for should be minimal, so we strive to use symlinks rather than extracting wheels at build time. This means that for different configurations of the same build, we are not extracting the wheel multiple times thus scaling better over the time. From 2.0 onwards we are creating a virtual env for each target by creating an actual minimal virtual environment using symlinks. We plan on creating the traditional site-packages layout in the future by default.rules_python and this has resulted in a few PEPs supported within pure starlark - PEP440, PEP509.Common misconceptions:
rules_python has to keep backwards compatibility with google3. Whilst this might have been true in the past, rules_python is an open source project and any compatibility needs should come from the community - we have no requirement to keep this compatibility and are allowed to make our decisions. However, we do want to keep backwards compatibility as long as possible to not upset users with never ending migrations.rules_python is not caching pip downloads. With 2.0, we use Bazel's downloader by default and rely on bazel to provide the repository caching mechanisms. This means that for simpler setups this should result in transparent and scalable caching with the most recent bazel versions unless there are issues in the bazel itself.For detailed documentation, see https://rules-python.readthedocs.io
See Bzlmod support for more details.