added bytes conversion

[ChristianMertes]

What do these changes do?

Added __bytes__() magic method so that bytes(url) will work and use optimal ASCII encoding, as URL string representations are always encoded already.

While I was at it, I fixed some typos I saw and I had to add a mypy ignore for the tests to work for me. There is one test that fails for me (test_semicolon_as_separator) because I was using a Python > 3.9.2 and parse_qsl() changed its behavior.

Are there changes in behavior for the user?

Existing functionality shouldn't be affected.

Related issue number

n/a

Checklist

• I think the code is well written
• Unit tests for the changes exist
• Documentation reflects the changes
• Add a new news fragment into the CHANGES folder
  • name it <issue_id>.<type> (e.g. 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.

[codecov]

Codecov Report

Merging #582 (1afed29) into master (3745b3d) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #582   +/-   ##
=======================================
  Coverage   99.72%   99.72%           
=======================================
  Files           4        4           
  Lines         737      739    +2     
  Branches      165      165           
=======================================
+ Hits          735      737    +2     
  Misses          2        2           

Flag	Coverage Δ
unit	99.45% <100.00%> (+<0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
yarl/_url.py	99.64% <100.00%> (+<0.01%)	⬆️

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[ChristianMertes]

It is interesting that said test also fails for the other Python versions. I am not convinced this has anything to do with the proposed changes, however....

[asvetlov]

Suggested typos are applied to master in a separate commit, thanks