gh-96465: Clear fractions hash lru_cache under refleak testing (GH-96689)

Automerge-Triggered-By: GH:zware

diff --git a/Lib/test/libregrtest/utils.py b/Lib/test/libregrtest/utils.py
index 8578a028c78bc2946e33e3cc00e4681d3a968e7e..332dcc4c6db247f5fefe3ec1b5004b3ab05e9c22 100644 (file)
--- a/Lib/test/libregrtest/utils.py
+++ b/Lib/test/libregrtest/utils.py
@@ -210,3 +210,10 @@ def clear_caches():
     else:
         for f in typing._cleanups:
             f()
+
+    try:
+        fractions = sys.modules['fractions']
+    except KeyError:
+        pass
+    else:
+        fractions._hash_algorithm.cache_clear()