Loading .dot file in graphviz

Question

I was looking for a way to create Digraph instance using graphviz package from existing .dot (or .gv) file, is that possible?

I want to do that in order to add/change attributes in the graph and then render altered graph.

NOTE:

1) I tried loading .dot file using Source class, however it does not seem to have methods to change the loaded graph. (Mentioned here How to parse a DOT file in Python).

2) I cannot use any other packages (i.e. pygraphviz, pydot etc.)

3) The .dot file contains a correctly formatted graph.

TomServo · Accepted Answer · 2017-07-04 18:59:07Z

0

You could parse the .dot source file using ANTLR4 and this grammar., and the python binding for ANTLR4. I use C# myself with ANTLR4 but believe there is a python implementation.

answered Jul 4, 2017 at 18:59

TomServo

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1 Comment

Laurynas Tamulevičius Over a year ago

Thanks for your suggestion. I figured that my project had pydot installed, hence I went ahead with it.

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