Fix a false positive for bad-dunder-name when there is a user-defined __index__ method. (#8619) (#8622)

github-actions[bot] · mbyrnepr2 · web-flow · commit e507a4d87ec8 · 2023-04-24T19:50:25.000Z
Closes #8613 (cherry picked from commit f223c6d) Co-authored-by: Mark Byrne <31762852+mbyrnepr2@users.noreply.github.com>
diff --git a/doc/whatsnew/fragments/8613.false_positive b/doc/whatsnew/fragments/8613.false_positive
@@ -0,0 +1,3 @@
+Fix a false positive for ``bad-dunder-name`` when there is a user-defined ``__index__`` method.
+
+Closes #8613
diff --git a/pylint/constants.py b/pylint/constants.py
@@ -281,6 +281,7 @@ def _get_pylint_home() -> str:
     "__getnewargs_ex__",
     "__getnewargs__",
     "__getstate__",
+    "__index__",
     "__setstate__",
     "__reduce__",
     "__reduce_ex__",
diff --git a/tests/functional/ext/bad_dunder/bad_dunder_name.py b/tests/functional/ext/bad_dunder/bad_dunder_name.py
@@ -49,6 +49,9 @@ def __private_method(self):
     def __doc__(self):
         return "Docstring"
 
+    def __index__(self):
+        return 1
+
 
 def __increase_me__(val):
     return val + 1

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,3 @@`
	`1`	+Fix a false positive for ``bad-dunder-name`` when there is a user-defined ``__index__`` method.
	`2`	`+`
	`3`	`+Closes #8613`