diff --git a/src/_pytest/assertion/util.py b/src/_pytest/assertion/util.py
index 618a93eca..860002f4d 100644
--- a/src/_pytest/assertion/util.py
+++ b/src/_pytest/assertion/util.py
@@ -140,7 +140,8 @@ def has_default_eq(
 ) -> bool:
     """Check if an instance of an object contains the default eq
 
-    First, we check if the object's __eq__ attribute has __code__, if so, we check the equally of the method code filename (__code__.co_filename)
+    First, we check if the object's __eq__ attribute has __code__,
+    if so, we check the equally of the method code filename (__code__.co_filename)
     to the default onces generated by the dataclass and attr module
     for dataclasses the default co_filename is <string>, for attrs class, the __eq__ should contain "attrs eq generated"
     """