updated the doctest of has_loops()

sagemath · Nov 10, 2024 · 6fe61f8 · 6fe61f8
1 parent ca0f5cc
commit 6fe61f8
Showing 1 changed file with 5 additions and 17 deletions.
diff --git a/src/sage/graphs/matching_covered_graph.py b/src/sage/graphs/matching_covered_graph.py
@@ -1967,14 +1967,6 @@ def has_loops(self):
             Traceback (most recent call last):
             ...
             ValueError: loops are not allowed in matching covered graphs
-            sage: G.loops()
-            []
-            sage: G.loop_edges()
-            []
-            sage: G.loop_vertices()
-            []
-            sage: G.number_of_loops()
-            0
 
         A matching covered graph may support multiple edges, still no
         loops are allowed::
@@ -1995,15 +1987,11 @@ def has_loops(self):
             False
             sage: G.has_loops()
             False
-            sage: G.loops()
-            []
-            sage: G.loop_edges()
-            []
-            sage: G.loop_vertices()
-            []
-            sage: G.number_of_loops()
-            0
-
+            sage: G.allow_loops(True)
+            Traceback (most recent call last):
+            ...
+            ValueError: loops are not allowed in matching covered graphs
+            
         .. SEEALSO::
 
             :meth:`~sage.graphs.matching_covered_graph.MatchingCoveredGraph.allow_loops`,