Extend bad-dunder-method-name to permit __index__ (#8300)

## Summary Fixes #8282 ## Test Plan `cargo test`
astral-sh · Oct 28, 2023 · 81a2e74 · 81a2e74
1 parent 3af890f
commit 81a2e74
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diff --git a/crates/ruff_linter/resources/test/fixtures/pylint/bad_dunder_method_name.py b/crates/ruff_linter/resources/test/fixtures/pylint/bad_dunder_method_name.py
@@ -70,6 +70,10 @@ def __attrs_init__(self):
     def __html__(self):
         pass
 
+    # Allow Python's __index__
+    def __index__(self):
+        pass
+
     # Allow _missing_, used by enum.Enum.
     @classmethod
     def _missing_(cls, value):

diff --git a/crates/ruff_linter/src/rules/pylint/rules/bad_dunder_method_name.rs b/crates/ruff_linter/src/rules/pylint/rules/bad_dunder_method_name.rs
@@ -132,6 +132,7 @@ fn is_known_dunder_method(method: &str) -> bool {
             | "__imatmul__"
             | "__imod__"
             | "__imul__"
+            | "__index__"
             | "__init__"
             | "__init_subclass__"
             | "__instancecheck__"