diff --git a/src/sage/groups/abelian_gps/abelian_group_morphism.py b/src/sage/groups/abelian_gps/abelian_group_morphism.py
index dfdd2d83ea6..eb41400065a 100644
--- a/src/sage/groups/abelian_gps/abelian_group_morphism.py
+++ b/src/sage/groups/abelian_gps/abelian_group_morphism.py
@@ -26,7 +26,9 @@
 
 def is_AbelianGroupMorphism(f):
     from sage.misc.superseded import deprecation
-    deprecation(38103, "The function is_AbelianGroupMorphism is deprecated; use 'isinstance(..., AbelianGroupMorphism)' instead.")
+    deprecation(38103,
+                "The function is_AbelianGroupMorphism is deprecated; "
+                "use 'isinstance(..., AbelianGroupMorphism)' instead.")
     return isinstance(f, AbelianGroupMorphism)
 
 
diff --git a/src/sage/groups/perm_gps/permgroup_morphism.py b/src/sage/groups/perm_gps/permgroup_morphism.py
index 9217c706524..c0596d94b85 100644
--- a/src/sage/groups/perm_gps/permgroup_morphism.py
+++ b/src/sage/groups/perm_gps/permgroup_morphism.py
@@ -322,10 +322,13 @@ def is_PermutationGroupMorphism(f) -> bool:
         sage: phi = PermutationGroupMorphism_im_gens(G, H, map(H, G.gens()))
         sage: is_PermutationGroupMorphism(phi)
         doctest:warning...
-        DeprecationWarning: The function is_PermutationGroupMorphism is deprecated; use 'isinstance(..., PermutationGroupMorphism)' instead.
+        DeprecationWarning: The function is_PermutationGroupMorphism is deprecated;
+        use 'isinstance(..., PermutationGroupMorphism)' instead.
         See https://github.com/sagemath/sage/issues/38103 for details.
         True
     """
     from sage.misc.superseded import deprecation
-    deprecation(38103, "The function is_PermutationGroupMorphism is deprecated; use 'isinstance(..., PermutationGroupMorphism)' instead.")
+    deprecation(38103,
+                "The function is_PermutationGroupMorphism is deprecated; "
+                "use 'isinstance(..., PermutationGroupMorphism)' instead.")
     return isinstance(f, PermutationGroupMorphism)
diff --git a/src/sage/homology/chain_complex_morphism.py b/src/sage/homology/chain_complex_morphism.py
index f61db322d23..af68bf0c906 100644
--- a/src/sage/homology/chain_complex_morphism.py
+++ b/src/sage/homology/chain_complex_morphism.py
@@ -79,12 +79,15 @@ def is_ChainComplexMorphism(x):
           To: Chain complex with at most 7 nonzero terms over Integer Ring
         sage: is_ChainComplexMorphism(x)
         doctest:warning...
-        DeprecationWarning: The function is_ChainComplexMorphism is deprecated; use 'isinstance(..., ChainComplexMorphism)' instead.
+        DeprecationWarning: The function is_ChainComplexMorphism is deprecated;
+        use 'isinstance(..., ChainComplexMorphism)' instead.
         See https://github.com/sagemath/sage/issues/38103 for details.
         True
     """
     from sage.misc.superseded import deprecation
-    deprecation(38103, "The function is_ChainComplexMorphism is deprecated; use 'isinstance(..., ChainComplexMorphism)' instead.")
+    deprecation(38103,
+                "The function is_ChainComplexMorphism is deprecated; "
+                "use 'isinstance(..., ChainComplexMorphism)' instead.")
     return isinstance(x, ChainComplexMorphism)
 
 
diff --git a/src/sage/topology/simplicial_complex_morphism.py b/src/sage/topology/simplicial_complex_morphism.py
index 1b2b8ef3a93..e1f87f3ddd2 100644
--- a/src/sage/topology/simplicial_complex_morphism.py
+++ b/src/sage/topology/simplicial_complex_morphism.py
@@ -127,13 +127,16 @@ def is_SimplicialComplexMorphism(x):
         sage: x = H(f)
         sage: is_SimplicialComplexMorphism(x)
         doctest:warning...
-        DeprecationWarning: The function is_SimplicialComplexMorphism is deprecated; use 'isinstance(..., SimplicialComplexMorphism)' instead.
+        DeprecationWarning: The function is_SimplicialComplexMorphism is deprecated;
+        use 'isinstance(..., SimplicialComplexMorphism)' instead.
         See https://github.com/sagemath/sage/issues/38103 for details.
         True
 
     """
     from sage.misc.superseded import deprecation
-    deprecation(38103, "The function is_SimplicialComplexMorphism is deprecated; use 'isinstance(..., SimplicialComplexMorphism)' instead.")
+    deprecation(38103,
+                "The function is_SimplicialComplexMorphism is deprecated; "
+                "use 'isinstance(..., SimplicialComplexMorphism)' instead.")
     return isinstance(x, SimplicialComplexMorphism)