Fix 5486.misc

[greshilov]

What do these changes do?

Fixes for #5486

Are there changes in behavior for the user?

No.

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_id>.<type> for example (588.bugfix)
  • if you don't have an issue_id change it to the pr id after creating the pr
  • ensure type is one of the following:
    • .feature: Signifying a new feature.
    • .bugfix: Signifying a bug fix.
    • .doc: Signifying a documentation improvement.
    • .removal: Signifying a deprecation or removal of public API.
    • .misc: A ticket has been closed, but it is not of interest to users.
  • Make sure to use full sentences with correct case and punctuation, for example: "Fix issue with non-ascii contents in doctest text files."

[greshilov]

@webknjaz looks like the only way to add hashes is to create a separate requirement file for each environment.

For example:

linux-py3.7-dev.txt
mac-py3.8-lint.txt
win32-py3.9-dev.txt

It will be necessary to create a python script tools/deps.py to automate installation and pin processes on different platforms.
Seems like a huge change, but it also will solve problem in 3.8 branch.

[greshilov]

Yep, you've already suggested this approach in #5496, #5486.

[webknjaz]

linux-py3.7-dev.txt
mac-py3.8-lint.txt
win32-py3.9-dev.txt

I think that we don't need it per-python but per-OS. If you use the lowest supported Python to generate the constraints, it should be fine.

[codecov]

Codecov Report

Merging #5507 (1ea7225) into master (ae8e1b0) will decrease coverage by 0.00%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #5507      +/-   ##
==========================================
- Coverage   97.17%   97.17%   -0.01%     
==========================================
  Files          41       41              
  Lines        8860     8854       -6     
  Branches     1424     1424              
==========================================
- Hits         8610     8604       -6     
  Misses        133      133              
  Partials      117      117              

Flag	Coverage Δ
unit	97.06% <ø> (-0.01%)	⬇️

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Impacted Files	Coverage Δ
aiohttp/test_utils.py	99.68% <0.00%> (-0.01%)	⬇️

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