From 76061470b9a96093ebf44c8bb94879558bb1392f Mon Sep 17 00:00:00 2001
From: Pieter Eendebak <pieter.eendebak@gmail.com>
Date: Wed, 12 Feb 2025 10:36:58 +0100
Subject: [PATCH 1/2] Revert gh-107148

---
 Lib/functools.py | 16 ----------------
 1 file changed, 16 deletions(-)

diff --git a/Lib/functools.py b/Lib/functools.py
index 2bc5053bd1b53f..4c1175b815d6ec 100644
--- a/Lib/functools.py
+++ b/Lib/functools.py
@@ -958,9 +958,6 @@ def __init__(self, func):
         self.dispatcher = singledispatch(func)
         self.func = func
 
-        import weakref # see comment in singledispatch function
-        self._method_cache = weakref.WeakKeyDictionary()
-
     def register(self, cls, method=None):
         """generic_method.register(cls, func) -> func
 
@@ -969,16 +966,6 @@ def register(self, cls, method=None):
         return self.dispatcher.register(cls, func=method)
 
     def __get__(self, obj, cls=None):
-        if self._method_cache is not None:
-            try:
-                _method = self._method_cache[obj]
-            except TypeError:
-                self._method_cache = None
-            except KeyError:
-                pass
-            else:
-                return _method
-
         dispatch = self.dispatcher.dispatch
         funcname = getattr(self.func, '__name__', 'singledispatchmethod method')
         def _method(*args, **kwargs):
@@ -991,9 +978,6 @@ def _method(*args, **kwargs):
         _method.register = self.register
         update_wrapper(_method, self.func)
 
-        if self._method_cache is not None:
-            self._method_cache[obj] = _method
-
         return _method
 
     @property

From b3064f19af9a522538f084c86060f2a02f8c57d6 Mon Sep 17 00:00:00 2001
From: "blurb-it[bot]" <43283697+blurb-it[bot]@users.noreply.github.com>
Date: Wed, 12 Feb 2025 09:48:31 +0000
Subject: [PATCH 2/2] =?UTF-8?q?=F0=9F=93=9C=F0=9F=A4=96=20Added=20by=20blu?=
 =?UTF-8?q?rb=5Fit.?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../next/Library/2025-02-12-09-48-25.gh-issue-127750.ibhIZg.rst | 2 ++
 1 file changed, 2 insertions(+)
 create mode 100644 Misc/NEWS.d/next/Library/2025-02-12-09-48-25.gh-issue-127750.ibhIZg.rst

diff --git a/Misc/NEWS.d/next/Library/2025-02-12-09-48-25.gh-issue-127750.ibhIZg.rst b/Misc/NEWS.d/next/Library/2025-02-12-09-48-25.gh-issue-127750.ibhIZg.rst
new file mode 100644
index 00000000000000..a82805454e45f3
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2025-02-12-09-48-25.gh-issue-127750.ibhIZg.rst
@@ -0,0 +1,2 @@
+Remove broken :func:`functools.singledispatchmethod` caching introduced in
+:gh:`85160`.