From 134def011917bb7460ac8da3ac31cc9065a26103 Mon Sep 17 00:00:00 2001
From: Charlie Marsh <charlie.r.marsh@gmail.com>
Date: Mon, 16 Oct 2023 14:11:14 -0400
Subject: [PATCH] Allow sunder names from `enum.Enum` (#7987)

Closes https://github.com/astral-sh/ruff/issues/7971.
---
 .../test/fixtures/pylint/bad_dunder_method_name.py        | 5 +++++
 .../src/rules/pylint/rules/bad_dunder_method_name.rs      | 8 ++++++++
 2 files changed, 13 insertions(+)

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
index be1cf65702..468e86f2f3 100644
--- 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
@@ -63,6 +63,11 @@ class Apples:
     def __html__(self):
         pass
 
+    # Allow _missing_, used by enum.Enum.
+    @classmethod
+    def _missing_(cls, value):
+        pass
+
 
 def __foo_bar__():  # this is not checked by the [bad-dunder-name] rule
     ...
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
index a3c3145798..98c05d6554 100644
--- 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
@@ -196,5 +196,13 @@ fn is_known_dunder_method(method: &str) -> bool {
             | "__trunc__"
             | "__weakref__"
             | "__xor__"
+            // Overridable sunder names from the `Enum` class.
+            // See: https://docs.python.org/3/library/enum.html#supported-sunder-names
+            | "_name_"
+            | "_value_"
+            | "_missing_"
+            | "_ignore_"
+            | "_order_"
+            | "_generate_next_value_"
     )
 }