NetworkFoX is a fork of graphkit, which adds the ability to do computations on top of NetworkX graphs. It stands for Network F of X. The features NetworkFoX adds to graphkit are: Control flow nodes, such as If, ElseIf, and Else. Type annotations and type checking for function inputs and outputs. Coloring nodes in a graph and evaluating only nodes of a given color. Picklable graphs. Fixing various bugs in graphkit.