networkx.classes.function.is_empty¶
-
is_empty
(G)[source]¶ Returns True if
G
has no edges.- Parameters
G (graph) – A NetworkX graph.
- Returns
True if
G
has no edges, and False otherwise.- Return type
Notes
An empty graph can have nodes but not edges. The empty graph with zero nodes is known as the null graph. This is an \(O(n)\) operation where n is the number of nodes in the graph.