Fix Cuthill-McKee ordering examples

1 files changed, 2 insertions, 2 deletions

diff --git a/networkx/utils/rcm.py b/networkx/utils/rcm.py
index 64aefda2..96f1676e 100644
--- a/networkx/utils/rcm.py
+++ b/networkx/utils/rcm.py
@@ -43,7 +43,7 @@ def cuthill_mckee_ordering(G, heuristic=None):
     Smallest degree node as heuristic function:
 
     >>> def smallest_degree(G):
-    ...     node,deg = sorted(G.degree().items(), key = lambda x:x[1])[0]
+    ...     node, deg = min(G.degree().items(), key=lambda x: x[1])
     ...     return node
     >>> rcm = list(cuthill_mckee_ordering(G, heuristic=smallest_degree))
 
@@ -103,7 +103,7 @@ def reverse_cuthill_mckee_ordering(G, heuristic=None):
     Smallest degree node as heuristic function:
 
     >>> def smallest_degree(G):
-    ...     node,deg = sorted(G.degree().items(), key = lambda x:x[1])[0]
+    ...     node, deg = min(G.degree().items(), key=lambda x: x[1])
     ...     return node
     >>> rcm = list(reverse_cuthill_mckee_ordering(G, heuristic=smallest_degree))