[Python] Not able to generate graphviz when runing on Mac

I have followed the recommended steps:

• Installed graphviz on mac using brew install graphviz. Please see below.

ls /usr/local/Cellar/graphviz/12.2.1/bin/
acyclic diffimg dot_sandbox graphml2gv gvmap gxl2gv patchwork twopi
bcomps dijkstra edgepaint gv2gml gvmap.sh mm2gv prune unflatten
ccomps dot fdp gv2gxl gvpack neato sccmap
circo dot2gxl gc gvcolor gvpr nop sfdp
cluster dot_builtins gml2gv gvgen gxl2dot osage tred

• Installed the python package using pip3 install graphviz. Please see below.

ls /Users/foo/Library/Python/3.7/lib/python/site-packages/graphviz/
__init__.py _tools.py dot.py jupyter_integration.py rendering.py
__pycache__ backend encoding.py parameters saving.py
_compat.py base.py exceptions.py piping.py sources.py
_defaults.py copying.py graphs.py quoting.py unflattening.py

• The PATH variable is also set correctly.

echo $PATH
/usr/local/Cellar/graphviz/12.2.1/bin:/usr/local/opt/curl/bin:/usr/local/opt/curl/bin:


However, when I run the python code to generate a basic graph:

import json
import graphviz

if __name__ == '__main__':
json_string = '{"192.168.133.166":[{}],"192.168.133.180":[{}],"192.168.133.64":[{}]} '

g1 = graphviz.Digraph(name="my_graph")
data = json.loads(json_string)

if isinstance(data, dict):
for k, v in data.items():
g1.node(k, None)
print(k, v)

# Render the graph
g1.render(filename="my_graph")


It fails with the following error.

graphviz.backend.execute.ExecutableNotFound: failed to execute PosixPath('dot'), make sure the Graphviz executables are on your systems' PATH


When I run the dot command from command line, it works fine. /usr/local/Cellar/graphviz/12.2.1/bin/dot -T jpeg -O sample.dot

Not sure what is still missing.

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