pip, Python

couldn’t import dot_parser, loading of dot files will not be possible.

Check the version of pyparsing, if that is 2.x.x then downgrade it to 1.x.x.
pyparsing changes from version 1.x.x to 2.x.x causing the problem.

pip uninstall pyparsing
pip install pyparsing==1.5.7

pydot.InvocationException: GraphViz’s executables not found

brew install graphviz

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