networkx.algorithms.matching.is_perfect_matching

is_perfect_matching(G, matching)[source]

Return True if matching is a perfect matching for G

A perfect matching in a graph is a matching in which exactly one edge is incident upon each vertex.

Parameters
GNetworkX graph
matchingdict or set

A dictionary or set representing a matching. If a dictionary, it must have matching[u] == v and matching[v] == u for each edge (u, v) in the matching. If a set, it must have elements of the form (u, v), where (u, v) is an edge in the matching.

Returns
bool

Whether the given set or dictionary represents a valid perfect matching in the graph.