add proxy and proxy_auth varriables to ClientSession.__init__

[meshya]

What do these changes do?

Users are now able to set proxy and proxy_auth as defaults in ClientSession.__init__.

Are there changes in behavior for the user?

No, there is not

These changes will not affect applications written with previous versions of aiohttp.

However, they can now set default proxy settings when creating an instance of ClientSession.

NOTICE: If default settings are set and then a new proxy setting is specified in SessionClient.get (or post, etc.), the latter will take effect.

Is it a substantial burden for the maintainers to support this?

It is a simple patch and should not cause any issues.

Related issue number

Checklist

• I think the code is well written
• Unit tests for the changes exist
• Documentation reflects the changes
• If you provide code modification, please add yourself to CONTRIBUTORS.txt
  • The format is <Name> <Surname>.
  • Please keep alphabetical order, the file is sorted by names.
• Add a new news fragment into the CHANGES/ folder

  • name it <issue_or_pr_num>.<type>.rst (e.g. 588.bugfix.rst)

  • if you don't have an issue number, change it to the pull request
    number after creating the PR

    • .bugfix: A bug fix for something the maintainers deemed an
      improper undesired behavior that got corrected to match
      pre-agreed expectations.
    • .feature: A new behavior, public APIs. That sort of stuff.
    • .deprecation: A declaration of future API removals and breaking
      changes in behavior.
    • .breaking: When something public is removed in a breaking way.
      Could be deprecated in an earlier release.
    • .doc: Notable updates to the documentation structure or build
      process.
    • .packaging: Notes for downstreams about unobvious side effects
      and tooling. Changes in the test invocation considerations and
      runtime assumptions.
    • .contrib: Stuff that affects the contributor experience. e.g.
      Running tests, building the docs, setting up the development
      environment.
    • .misc: Changes that are hard to assign to any of the above
      categories.

  • Make sure to use full sentences with correct case and punctuation,
    for example:

    Fixed issue with non-ascii contents in doctest text files
    -- by :user:`contributor-gh-handle`.

    Use the past tense or the present tense a non-imperative mood,
    referring to what's changed compared to the last released version
    of this project.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.55%. Comparing base (7d1056b) to head (1057e95).
Report is 2 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #9207   +/-   ##
=======================================
  Coverage   98.55%   98.55%           
=======================================
  Files         107      107           
  Lines       34867    34896   +29     
  Branches     4134     4138    +4     
=======================================
+ Hits        34364    34393   +29     
  Misses        335      335           
  Partials      168      168           

Flag	Coverage Δ
CI-GHA	98.44% <100.00%> (+<0.01%)	⬆️
OS-Linux	98.11% <100.00%> (+<0.01%)	⬆️
OS-Windows	96.52% <100.00%> (+<0.01%)	⬆️
OS-macOS	97.79% <100.00%> (-0.01%)	⬇️
Py-3.10.11	97.78% <100.00%> (+<0.01%)	⬆️
Py-3.10.15	97.71% <100.00%> (+<0.01%)	⬆️
Py-3.11.10	97.67% <100.00%> (+<0.01%)	⬆️
Py-3.11.9	97.74% <100.00%> (-0.01%)	⬇️
Py-3.12.6	98.16% <100.00%> (+<0.01%)	⬆️
Py-3.13.0-rc.2	98.15% <100.00%> (+<0.01%)	⬆️
Py-3.9.13	97.67% <100.00%> (-0.01%)	⬇️
Py-3.9.20	97.61% <100.00%> (+<0.01%)	⬆️
Py-pypy7.3.16	97.22% <100.00%> (-0.01%)	⬇️
VM-macos	97.79% <100.00%> (-0.01%)	⬇️
VM-ubuntu	98.11% <100.00%> (+<0.01%)	⬆️
VM-windows	96.52% <100.00%> (+<0.01%)	⬆️

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[Dreamsorcerer]

Seems reasonable, but please resolve coverage.

[meshya]

Ok, I try fix it today

[patchback]

Backport to 3.11: 💔 cherry-picking failed — conflicts found

❌ Failed to cleanly apply 970c5d9 on top of patchback/backports/3.11/970c5d9d84afc8fb762ff04940b5e25449a1f6ae/pr-9207

Backporting merged PR #9207 into master

1. Ensure you have a local repo clone of your fork. Unless you cloned it
   from the upstream, this would be your origin remote.
2. Make sure you have an upstream repo added as a remote too. In these
   instructions you'll refer to it by the name upstream. If you don't
   have it, here's how you can add it:

   $ git remote add upstream https://github.com/aio-libs/aiohttp.git

3. Ensure you have the latest copy of upstream and prepare a branch
   that will hold the backported code:

   $ git fetch upstream
   $ git checkout -b patchback/backports/3.11/970c5d9d84afc8fb762ff04940b5e25449a1f6ae/pr-9207 upstream/3.11

4. Now, cherry-pick PR add proxy and proxy_auth varriables to ClientSession.__init__ #9207 contents into that branch:

   $ git cherry-pick -x 970c5d9d84afc8fb762ff04940b5e25449a1f6ae

   If it'll yell at you with something like fatal: Commit 970c5d9d84afc8fb762ff04940b5e25449a1f6ae is a merge but no -m option was given., add -m 1 as follows instead:

   $ git cherry-pick -m1 -x 970c5d9d84afc8fb762ff04940b5e25449a1f6ae

5. At this point, you'll probably encounter some merge conflicts. You must
   resolve them in to preserve the patch from PR add proxy and proxy_auth varriables to ClientSession.__init__ #9207 as close to the
   original as possible.
6. Push this branch to your fork on GitHub:

   $ git push origin patchback/backports/3.11/970c5d9d84afc8fb762ff04940b5e25449a1f6ae/pr-9207

7. Create a PR, ensure that the CI is green. If it's not — update it so that
   the tests and any other checks pass. This is it!
   Now relax and wait for the maintainers to process your pull request
   when they have some cycles to do reviews. Don't worry — they'll tell you if
   any improvements are necessary when the time comes!

🤖 @patchback
I'm built with octomachinery and
my source is open — https://github.com/sanitizers/patchback-github-app.

[Dreamsorcerer]

Thanks, if you could do the backport as above, that'd be a great help.

[meshya]

Thanks for merge, I appreciate your time and effort, I'll do the backport soon.