From 09f220a6004d1bd83486570149e451c12a23bddd Mon Sep 17 00:00:00 2001
From: Aaron Gokaslan <aaronGokaslan@gmail.com>
Date: Fri, 14 Feb 2025 11:05:25 -0500
Subject: [PATCH] Enable ruff SIM101 duplicate isinstance check

---
 mypy/stubtest.py | 11 +++++++++--
 pyproject.toml   |  1 +
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/mypy/stubtest.py b/mypy/stubtest.py
index 599a24cf685d..41b58cbbb636 100644
--- a/mypy/stubtest.py
+++ b/mypy/stubtest.py
@@ -1534,8 +1534,15 @@ def is_probably_private(name: str) -> bool:
 
 def is_probably_a_function(runtime: Any) -> bool:
     return (
-        isinstance(runtime, (types.FunctionType, types.BuiltinFunctionType))
-        or isinstance(runtime, (types.MethodType, types.BuiltinMethodType))
+        isinstance(
+            runtime,
+            (
+                types.FunctionType,
+                types.BuiltinFunctionType,
+                types.MethodType,
+                types.BuiltinMethodType,
+            ),
+        )
         or (inspect.ismethoddescriptor(runtime) and callable(runtime))
         or (isinstance(runtime, types.MethodWrapperType) and callable(runtime))
     )
diff --git a/pyproject.toml b/pyproject.toml
index 2eaca2d3ea88..58d144c4f886 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -142,6 +142,7 @@ select = [
   "PGH004",  # blanket noqa comments
   "UP",      # pyupgrade
   "C4",      # flake8-comprehensions
+  "SIM101",  # merge duplicate isinstance calls
   "SIM201", "SIM202", "SIM222", "SIM223",  # flake8-simplify
   "FURB188", # use str.remove(pre|suf)fix
   "ISC001",  # implicitly concatenated string