“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

This is showing some path issue:

pip install graphviz

So this worked for me:

sudo apt-get install graphviz

Answer 2

If you are not using Conda but vanilla Python, 'brew install graphviz' works.

Answer 3

You should install the graphviz package in your system (not just the python package). On Ubuntu you should try:

sudo apt-get install graphviz

Answer 4

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")

Answer 5

conda install python-graphviz

For Windows, install the Python Graphviz which will include the executables in the path.

Answer 6

When solving this issue for myself, I used this GitHub tutorial, which analysed the cause of this issue. If we read in between the lines, it says it needs system as well as python graph viz. In addition to conda install, we would need to run:

conda install -c conda-forge python-graphviz

Then restart the kernel; it works like a charm.