- class UnionAtlas(succ, pred)[source]#
A read-only union of two atlases (dict-of-dict).
The two dict-of-dicts represent the inner dict of an Adjacency:
G.pred[node]. The inner level of dict of both hold attribute key:value pairs and is read-write. But the outer level is read-only.
View into dict-of-dict-of-dict
View into dict-of-dict-of-dict-of-dict