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Base exceptions and errors for NetworkX.

class NetworkXException

Base class for exceptions in NetworkX.

class NetworkXError

Exception for a serious error in NetworkX

class NetworkXPointlessConcept

Harary, F. and Read, R. “Is the Null Graph a Pointless Concept?” In Graphs and Combinatorics Conference, George Washington University. New York: Springer-Verlag, 1973.

class NetworkXAlgorithmError

Exception for unexpected termination of algorithms.

class NetworkXUnfeasible

Exception raised by algorithms trying to solve a problem instance that has no feasible solution.

class NetworkXNoPath

Exception for algorithms that should return a path when running on graphs where such a path does not exist.

class NetworkXUnbounded

Exception raised by algorithms trying to solve a maximization or a minimization problem instance that is unbounded.