categorical_edge_match(attr, default)#

Returns a comparison function for a categorical edge attribute.

The value(s) of the attr(s) must be hashable and comparable via the == operator since they are placed into a set([]) object. If the sets from G1 and G2 are the same, then the constructed function returns True.

attrstring | list

The categorical edge attribute to compare, or a list of categorical edge attributes to compare.

defaultvalue | list

The default value for the categorical edge attribute, or a list of default values for the categorical edge attributes.


The customized, categorical edge_match function.


>>> import networkx.algorithms.isomorphism as iso
>>> nm = iso.categorical_edge_match("size", 1)
>>> nm = iso.categorical_edge_match(["color", "size"], ["red", 2])