opto.trace.nodes.Graph#

class Graph[source]#

Graph is a registry of all the nodes, forming a Directed Acyclic Graph (DAG).

_nodes#

An instance-level attribute, which is a defaultdict of lists, used as a lookup table to find nodes by name.

Type:

defaultdict

Notes

The Graph class manages and organizes nodes in a Directed Acyclic Graph (DAG). It provides methods to register nodes, clear the graph, retrieve nodes by name, and identify root nodes. The register method assumes that elements in _nodes are never removed, which is important for maintaining the integrity of node names.

Initialize the Graph object.

The initialization sets up the _nodes attribute as a defaultdict of lists to store nodes by their names.

Attributes

TRACE
roots	Get all root nodes in the graph.

Methods

clear()	Remove all nodes from the graph.
get(name)	Retrieve a node from the graph by its name.
register(node)	Add a node to the graph.

__init__()[source]#

Initialize the Graph object.

The initialization sets up the _nodes attribute as a defaultdict of lists to store nodes by their names.

__new__(**kwargs)#