“RuntimeError: Make sure the Graphviz executables are on your system's path” after installing Graphviz 2.38

Question

I downloaded Graphviz 2.38 MSI version and installed under folder C:\\Python34, then I run pip install Graphviz, everything went well.

Answer 1

I had the same issue on Linux with Jupyter.

To solve it I've added the dot library to python sys.path

First: check if dot is installed,

Then:
find his path whereis dot -> /local/notebook/miniconda2/envs/ik2/bin/dot

Finally in python script : sys.path.append("/local/notebook/miniconda2/envs/ik2/bin/dot")