aiohttp 3.10.6rc0

on Python PyPI

Bug fixes

• Implemented binding to IPv6 addresses in the pytest server fixture.

  Related issues and pull requests on GitHub:
  #4650.

• Fixed StreamResponse.prepared to return True after EOF is sent -- by :user:arthurdarcet.

  Related issues and pull requests on GitHub:
  #5343.

• Fixed Response.text when body is a Payload -- by :user:Dreamsorcerer.

  Related issues and pull requests on GitHub:
  #6485.

• Added support for URL credentials with empty (zero-length) username, e.g. https://:password@host -- by :user:shuckc

  Related issues and pull requests on GitHub:
  #6494.

• Fixed handling of some file-like objects (e.g. tarfile.extractfile()) which raise AttributeError instead of OSError when fileno fails for streaming payload data -- by :user:ReallyReivax.

  Related issues and pull requests on GitHub:
  #6732.

• Stopped logging exceptions from web.run_app() that would be raised regardless -- by :user:Dreamsorcerer.

  Related issues and pull requests on GitHub:
  #6807.

• Changed make_mocked_request() to use empty payload by default -- by :user:rahulnht.

  Related issues and pull requests on GitHub:
  #7167.

• Used more precise type for ClientResponseError.headers, fixing some type errors when using them -- by :user:Dreamorcerer.

  Related issues and pull requests on GitHub:
  #8768.

• Fixed Python parser chunked handling with multiple Transfer-Encoding values -- by :user:Dreamsorcerer.

  Related issues and pull requests on GitHub:
  #8823.

• Changed behavior when returning an invalid response to send a 500 response -- by :user:Dreamsorcerer.

  Related issues and pull requests on GitHub:
  #8845.

• Stopped adding a default Content-Type header when response has no content -- by :user:Dreamsorcerer.

  Related issues and pull requests on GitHub:
  #8858.

• Fixed an unclosed transport ResourceWarning on web handlers -- by :user:Dreamsorcerer.

  Related issues and pull requests on GitHub:
  #8875.

• Fixed error handling after 100-continue so server sends 500 response instead of disconnecting -- by :user:Dreamsorcerer.

  Related issues and pull requests on GitHub:
  #8876.

• Fixed response reading from closed session to throw an error immediately instead of timing out -- by :user:Dreamsorcerer.

  Related issues and pull requests on GitHub:
  #8878.

• Fixed web router not matching pre-encoded URLs (requires yarl 1.9.6+) -- by :user:Dreamsorcerer.

  Related issues and pull requests on GitHub:
  #8898.

• Fixed CancelledError from one cleanup context stopping other contexts from completing -- by :user:Dreamsorcerer.

  Related issues and pull requests on GitHub:
  #8908.

• Fixed Site.name when host is an empty string -- by :user:Dreamsorcerer.

  Related issues and pull requests on GitHub:
  #8929.

• Fixed resolve_host() 'Task was destroyed but is pending' errors -- by :user:Dreamsorcerer.

  Related issues and pull requests on GitHub:
  #8967.

• Fixed changing scheme/host in Response.clone() for absolute URLs -- by :user:Dreamsorcerer.

  Related issues and pull requests on GitHub:
  #8990.

• Fixed client incorrectly reusing a connection when the previous message had not been fully sent -- by :user:Dreamsorcerer.

  Related issues and pull requests on GitHub:
  #8992.

• Fixed an error when trying to add a route for multiple methods with a path containing a regex pattern -- by :user:Dreamsorcerer.

  Related issues and pull requests on GitHub:
  #8998.

• Updated Python parser to reject messages after a close message, matching C parser behaviour -- by :user:Dreamsorcerer.

  Related issues and pull requests on GitHub:
  #9018.

• Fixed creation of SSLContext inside of :py:class:aiohttp.TCPConnector with multiple event loops in different threads -- by :user:bdraco.

  Related issues and pull requests on GitHub:
  #9029.

• Fixed (on Python 3.11+) some edge cases where a task cancellation may get incorrectly suppressed -- by :user:Dreamsorcerer.

  Related issues and pull requests on GitHub:
  #9030.

• Fixed the incorrect use of flags for getnameinfo() in the Resolver --by :user:GitNMLee

  Link-Local IPv6 addresses can now be handled by the Resolver correctly.

  Related issues and pull requests on GitHub:
  #9032.

• Fixed exception information getting lost on HttpProcessingError -- by :user:Dreamsorcerer.

  Related issues and pull requests on GitHub:
  #9052.

• Fixed If-None-Match not using weak comparison -- by :user:Dreamsorcerer.

  Related issues and pull requests on GitHub:
  #9063.

• Fixed compressed requests failing when no body was provided -- by :user:Dreamsorcerer.

  Related issues and pull requests on GitHub:
  #9108.

• Added :exc:aiohttp.ClientConnectionResetError. Client code that previously threw :exc:ConnectionResetError
  will now throw this -- by :user:Dreamsorcerer.

  Related issues and pull requests on GitHub:
  #9137.

• Fixed race condition that could cause server to close connection incorrectly at keepalive timeout -- by :user:Dreamosorcerer.

  Related issues and pull requests on GitHub:
  #9140.

• Fixed badly encoded charset crashing when getting response text instead of falling back to charset detector.

  Related issues and pull requests on GitHub:
  #9160.

• Rejected \n in reason values to avoid sending broken HTTP messages -- by :user:Dreamsorcerer.

  Related issues and pull requests on GitHub:
  #9167.

• Changed :py:meth:ClientResponse.raise_for_status() <aiohttp.ClientResponse.raise_for_status> to only release the connection when invoked outside an async with context -- by :user:Dreamsorcerer.

  Related issues and pull requests on GitHub:
  #9239.

Features

• Improved type on params to match the underlying type allowed by yarl -- by :user:lpetre.

  Related issues and pull requests on GitHub:
  #8564.

Removals and backward incompatible breaking changes

• Improved middleware performance -- by :user:bdraco.

  The set_current_app method was removed from UrlMappingMatchInfo because it is no longer used, and it was unlikely external caller would ever use it.

  Related issues and pull requests on GitHub:
  #9200.

Improved documentation

• Clarified that GracefulExit needs to be handled in AppRunner and ServerRunner when using handle_signals=True. -- by :user:Daste745

  Related issues and pull requests on GitHub:
  #4414.

• Clarified that auth parameter in ClientSession will persist and be included with any request to any origin, even during redirects to different origins. -- by :user:MaximZemskov.

  Related issues and pull requests on GitHub:
  #6764.

• Clarified which timeout exceptions happen on which timeouts -- by :user:Dreamsorcerer.

  Related issues and pull requests on GitHub:
  #8968.

• Updated ClientSession parameters to match current code -- by :user:Dreamsorcerer.

  Related issues and pull requests on GitHub:
  #8991.

Packaging updates and notes for downstreams

• Fixed test_client_session_timeout_zero to not require internet access -- by :user:Dreamsorcerer.

  Related issues and pull requests on GitHub:
  #9004.

Miscellaneous internal changes

• Improved performance of making requests when there are no auto headers to skip -- by :user:bdraco.

  Related issues and pull requests on GitHub:
  #8847.

• Exported aiohttp.TraceRequestHeadersSentParams -- by :user:Hadock-is-ok.

  Related issues and pull requests on GitHub:
  #8947.

• Avoided tracing overhead in the http writer when there are no active traces -- by user:bdraco.

  Related issues and pull requests on GitHub:
  #9031.

• Improved performance of reify Cython implementation -- by :user:bdraco.

  Related issues and pull requests on GitHub:
  #9054.

• Use :meth:URL.extend_query() <yarl.URL.extend_query> to extend query params (requires yarl 1.11.0+) -- by :user:bdraco.

  If yarl is older than 1.11.0, the previous slower hand rolled version will be used.

  Related issues and pull requests on GitHub:
  #9068.

• Improved performance of checking if a host is an IP Address -- by :user:bdraco.

  Related issues and pull requests on GitHub:
  #9095.

• Significantly improved performance of middlewares -- by :user:bdraco.

  The construction of the middleware wrappers is now cached and is built once per handler instead of on every request.

  Related issues and pull requests on GitHub:
  #9158, #9170.

• Improved performance of web requests -- by :user:bdraco.

  Related issues and pull requests on GitHub:
  #9168, #9169, #9172, #9174, #9175, #9241.

• Improved performance of starting web requests when there is no response prepare hook -- by :user:bdraco.

  Related issues and pull requests on GitHub:
  #9173.

• Significantly improved performance of expiring cookies -- by :user:bdraco.

  Expiring cookies has been redesigned to use :mod:heapq instead of a linear search, to better scale.

  Related issues and pull requests on GitHub:
  #9203.

• Significantly sped up filtering cookies -- by :user:bdraco.

  Related issues and pull requests on GitHub:
  #9204.