Module nx_pydot

Write NetworkX graph G to Graphviz dot format on path.

Path can be a string or a file handle.

Return a NetworkX Graph or DiGraph from a dot file on path.

Path can be a string or a file handle.

Return a NetworkX XGraph or XDiGraph from a pydot graph.

>>> X=from_pydot(P)

The XGraph X will have a dictionary X.graph_attr containing the default graphviz attributes for graphs, nodes and edges.

Default node attributes will be in the dictionary X.node_attr which is keyed by node.

Edge attributes will be returned as edge data in the graph X.

If you want a Graph with no attributes attached instead of an XGraph with attributes use

>>> G=Graph(X)

Similarly to make a DiGraph from an XDiGraph

>>> D=DiGraph(X)

Return a pydot graph from a NetworkX graph N.

If N is a Graph or DiGraph, graphviz attributes can be supplied through the keyword arguments

graph_attr: dictionary with default attributes for graph, nodes, and edges

keyed by 'graph', 'node', and 'edge' to attribute dictionaries

node_attr: dictionary keyed by node to node attribute dictionary

edge_attr: dictionary keyed by edge tuple to edge attribute dictionary

If N is an XGraph or XDiGraph an attempt will be made first to copy properties attached to the graph (see from_pydot) and then updated with the calling arguments, if any.

Create layout using pydot and graphviz. Returns a dictionary of positions keyed by node.

>>> pos=graphviz_layout(G)
>>> pos=graphviz_layout(G,prog='dot')

This is a wrapper for pydot_layout.

Create layout using pydot and graphviz. Returns a dictionary of positions keyed by node.

>>> pos=pydot_layout(G)
>>> pos=pydot_layout(G,prog='dot')