Simple backport of "Fix warnings with attrs 19.2 and fix object assertions"

[mimi1vx]

#5902 'backport' to 4.6 maintenance

[codecov]

Codecov Report

Merging #5941 into 4.6-maintenance will increase coverage by 0.27%.
The diff coverage is 83.33%.

@@                Coverage Diff                 @@
##           4.6-maintenance   #5941      +/-   ##
==================================================
+ Coverage            95.92%   96.2%   +0.27%     
==================================================
  Files                  115     115              
  Lines                26553   26560       +7     
  Branches              2615    2616       +1     
==================================================
+ Hits                 25472   25551      +79     
+ Misses                 755     703      -52     
+ Partials               326     306      -20

Impacted Files	Coverage Δ
testing/test_assertion.py	97.67% <100%> (ø)	⬆️
src/_pytest/assertion/util.py	98.16% <100%> (ø)	⬆️
src/_pytest/mark/structures.py	92.77% <100%> (+0.04%)	⬆️
src/_pytest/compat.py	96.05% <66.66%> (+2.08%)	⬆️
src/_pytest/fixtures.py	97.55% <0%> (+0.27%)	⬆️
testing/test_capture.py	99.25% <0%> (+0.29%)	⬆️
testing/test_terminal.py	99.84% <0%> (+0.31%)	⬆️
testing/test_config.py	99.83% <0%> (+0.32%)	⬆️
testing/test_pdb.py	99.22% <0%> (+0.38%)	⬆️
src/_pytest/pytester.py	91.66% <0%> (+0.42%)	⬆️
... and 15 more

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[nicoddemus]

Hi @mimi1vx,

We appreciate the PR, but we have a formal procedure to backport to 4.6-maintenance, it is described in #5275, under the title Backporting changes into the 4.6 release. Could you follow that instead please?

If you don't have the time, let us know and one of us will pick this up. 👍

[mimi1vx]

@nicoddemus thx, I'll take look

[nicoddemus]

Thanks! I'm closing this one then.