[Backport maintenance/2.17.x] Fix check unused arguments false positive bug #8545
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Problem: the special method `__new__` must match the arguments of the `__init__` method even if `__new__` method does not use them. This generate `unused-argument` for the `__new__` method. Fix: the unused arguments check should not be done on the `__new__` method if the `__init__` method is defined in the same class. Update `unused-argument` test to include a check for the case of `__init__` and `__new__` being defined in a class but `__new__` does not use all of the argument. This is fine because `__new__` must have the same argument of `__init__`. Update with a second check in case of `__init__` being not defined in a class. Then the unused arguments check must be done on `__new__`. Fixes #3670 (cherry picked from commit 156da64)
Pierre-Sassoulas
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False Positive 🦟
Pierre-Sassoulas
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Apr 6, 2023
Codecov Report
Additional details and impacted files@@ Coverage Diff @@
## maintenance/2.17.x #8545 +/- ##
===================================================
Coverage 95.56% 95.56%
===================================================
Files 178 178
Lines 18786 18794 +8
===================================================
+ Hits 17952 17960 +8
Misses 834 834
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Backport 156da64 from #8542.