aiohttp 3.10.0b1 on Python PyPI

Bug fixes

Fixed server response headers for Content-Type and Content-Encoding for
static compressed files -- by :user:steverep.
Server will now respond with a Content-Type appropriate for the compressed
file (e.g. "application/gzip"), and omit the Content-Encoding header.
Users should expect that most clients will no longer decompress such responses
by default.
Related issues and pull requests on GitHub:
#4462.
Fix duplicate cookie expiration calls in the CookieJar implementation
Related issues and pull requests on GitHub:
#7784.
Fix AsyncResolver to match ThreadedResolver behavior
-- by :user:bdraco.
On system with IPv6 support, the :py:class:~aiohttp.resolver.AsyncResolver would not fallback
to providing A records when AAAA records were not available.
Additionally, unlike the :py:class:~aiohttp.resolver.ThreadedResolver, the :py:class:~aiohttp.resolver.AsyncResolver
did not handle link-local addresses correctly.
This change makes the behavior consistent with the :py:class:~aiohttp.resolver.ThreadedResolver.
Related issues and pull requests on GitHub:
#8270.
Fix ws_connect not respecting receive_timeout`` on WS(S) connection. -- by :user:arcivanov`.
Related issues and pull requests on GitHub:
#8444.
Removed blocking I/O in the event loop for static resources and refactored
exception handling -- by :user:steverep.
File system calls when handling requests for static routes were moved to a
separate thread to potentially improve performance. Exception handling
was tightened in order to only return 403 Forbidden or 404 Not Found responses
for expected scenarios; 500 Internal Server Error would be returned for any
unknown errors.
Related issues and pull requests on GitHub:
#8507.

Features

Add a Request.wait_for_disconnection() method, as means of allowing request handlers to be notified of premature client disconnections.
Related issues and pull requests on GitHub:
#2492.
Added 5 new exceptions: :py:exc:~aiohttp.InvalidUrlClientError, :py:exc:~aiohttp.RedirectClientError,
:py:exc:~aiohttp.NonHttpUrlClientError, :py:exc:~aiohttp.InvalidUrlRedirectClientError,
:py:exc:~aiohttp.NonHttpUrlRedirectClientError
:py:exc:~aiohttp.InvalidUrlRedirectClientError, :py:exc:~aiohttp.NonHttpUrlRedirectClientError
are raised instead of :py:exc:ValueError or :py:exc:~aiohttp.InvalidURL when the redirect URL is invalid. Classes
:py:exc:~aiohttp.InvalidUrlClientError, :py:exc:~aiohttp.RedirectClientError,
:py:exc:~aiohttp.NonHttpUrlClientError are base for them.
The :py:exc:~aiohttp.InvalidURL now exposes a description property with the text explanation of the error details.
-- by :user:setla, :user:AraHaan, and :user:bdraco
Related issues and pull requests on GitHub:
#2507, #3315, #6722, #8481, #8482.
Added a feature to retry closed connections automatically for idempotent methods. -- by :user:Dreamsorcerer
Related issues and pull requests on GitHub:
#7297.

Implement filter_cookies() with domain-matching and path-matching on the keys, instead of testing every single cookie.
This may break existing cookies that have been saved with CookieJar.save(). Cookies can be migrated with this script::

import pickle
with file_path.open("rb") as f:
    cookies = pickle.load(f)

morsels = [(name, m) for c in cookies.values() for name, m in c.items()]
cookies.clear()
for name, m in morsels:
    cookies[(m["domain"], m["path"].rstrip("/"))][name] = m

with file_path.open("wb") as f:
    pickle.dump(cookies, f, pickle.HIGHEST_PROTOCOL)

Related issues and pull requests on GitHub:
#7583.

Separated connection and socket timeout errors, from ServerTimeoutError.
Related issues and pull requests on GitHub:
#7801.
Implement happy eyeballs
Related issues and pull requests on GitHub:
#7954.
Added server capability to check for static files with Brotli compression via a .br extension -- by :user:steverep.
Related issues and pull requests on GitHub:
#8062.

Improved documentation

Add documentation for aiohttp.web.FileResponse.
Related issues and pull requests on GitHub:
#3958.
Improve the docs for the ssl params.
Related issues and pull requests on GitHub:
#8403.

Contributor-facing changes

Enabled HTTP parser tests originally intended for 3.9.2 release -- by :user:pajod.
Related issues and pull requests on GitHub:
#8088.

Miscellaneous internal changes

Improved URL handler resolution time by indexing resources in the UrlDispatcher.
For applications with a large number of handlers, this should increase performance significantly.
-- by :user:bdraco
Related issues and pull requests on GitHub:
#7829.
Add nacl_middleware <https://github.com/CosmicDNA/nacl_middleware>_ to the list of middlewares in the third party section of the documentation.
Related issues and pull requests on GitHub:
#8346.
Minor improvements to static typing -- by :user:Dreamsorcerer.
Related issues and pull requests on GitHub:
#8364.
Added a 3.11-specific overloads to ClientSession -- by :user:max-muoto.
Related issues and pull requests on GitHub:
#8463.
Simplified path checks for UrlDispatcher.add_static() method -- by :user:steverep.
Related issues and pull requests on GitHub:
#8491.
Avoid creating a future on every websocket receive -- by :user:bdraco.
Related issues and pull requests on GitHub:
#8498.
Use identity checks for all WSMsgType type compares -- by :user:bdraco.
Related issues and pull requests on GitHub:
#8501.
When using Python 3.12 or later, the writer is no longer scheduled on the event loop if it can finish synchronously. Avoiding event loop scheduling reduces latency and improves performance. -- by :user:bdraco.
Related issues and pull requests on GitHub:
#8510.
Restore :py:class:~aiohttp.resolver.AsyncResolver to be the default resolver. -- by :user:bdraco.
:py:class:~aiohttp.resolver.AsyncResolver was disabled by default because
of IPv6 compatibility issues. These issues have been resolved and
:py:class:~aiohttp.resolver.AsyncResolver is again now the default resolver.
Related issues and pull requests on GitHub:
#8522.