Package pygraph :: Package classes :: Module exceptions

Module exceptions

Exceptions.

Classes
	GraphError A base-class for the various kinds of errors that occur in the the python-graph class.
	AdditionError This error is raised when trying to add a node or edge already added to the graph or digraph.
	NodeUnreachable Goal could not be reached from start.
	InvalidGraphType Invalid graph type.
	AlgorithmError A base-class for the various kinds of errors that occur in the the algorithms package.
	NegativeWeightCycleError Algorithms like the Bellman-Ford algorithm can detect and raise an exception when they encounter a negative weight cycle.

Variables
	__package__ = `None`