howto install pygraphviz on windows 10 64bit

The accepted answer didn’t work for me running Python 2.7 (Anaconda) on Windows 10. The file path that @MiniMe suggested for --global-option didn’t even exist in the git repo that he or she pointed to.

What did work for me was following instructions provided by the (currently) bottom answer to: Installing pygraphviz on windows

Steps:
1. Download graphviz-2.38.msi from https://graphviz.gitlab.io/_pages/Download/Download_windows.html and install
2. Download the 2.7 o̶r̶ ̶3̶.̶4̶ wheel file you need from http://www.lfd.uci.edu/~gohlke/pythonlibs/#pygraphviz
3. Navigate to the directory that you downloaded the wheel file to
4. Run pip install pygraphviz-1.3.1-cp27-none-win_amd64.whl
5. Rejoice

N̶o̶t̶e̶ ̶t̶h̶a̶t̶ ̶y̶o̶u̶ ̶m̶i̶g̶h̶t̶ ̶h̶a̶v̶e̶ ̶t̶o̶ ̶r̶u̶n̶ ̶̶p̶i̶p̶ ̶i̶n̶s̶t̶a̶l̶l̶ ̶p̶y̶g̶r̶a̶p̶h̶v̶i̶z̶-̶1̶.̶3̶.̶1̶-̶c̶p̶3̶4̶-̶n̶o̶n̶e̶-̶w̶i̶n̶_̶a̶m̶d̶6̶4̶.̶w̶h̶l̶̶ ̶i̶f̶ ̶y̶o̶u̶’̶r̶e̶ ̶t̶r̶y̶i̶n̶g̶ ̶t̶o̶ ̶g̶e̶t̶ ̶i̶t̶ ̶t̶o̶ ̶w̶o̶r̶k̶ ̶w̶i̶t̶h̶ ̶P̶y̶t̶h̶o̶n̶ ̶3̶.̶4̶.̶ ̶I̶ ̶d̶i̶d̶n̶’̶t̶ ̶t̶e̶s̶t̶ ̶t̶h̶a̶t̶ ̶t̶h̶o̶u̶g̶h̶.̶ Also, the SO answer I referenced also mentioned needing to add graphviz to your PATH but I didn’t need to. Good luck!

Update: The python3 wheel vanished. If you’re running python3, this answer worked for me. Follow step 1 above and then in WSL bash run:
1. sudo apt-get install python-dev graphviz libgraphviz-dev pkg-config
2. pip install pygraphviz

That answers says to use sudo pip install pygraphviz, but that gave me a dreaded pip import error for some reason. Dropping the sudo made it work in my case.

If all the solutions above failed, you can still clone directly from the pygraphviz repository

1. Visit: https://github.com/pygraphviz/pygraphviz.git
2. Download/Clone it
3. put the folder into C:Users\AppDataLocalProgramsPythonPython37-32Libsite-packages
4. Change directory to “pygraphviz”
5. Run “python setup.py install” to build and install
6. (optional) Run “python setup_egg.py nosetests” to execute the tests

Source: http://pygraphviz.github.io/documentation/pygraphviz-1.3.1/install.html

I’ve created a build of PyGraphviz 1.5 on my Anaconda channel for Windows 64 bit running Python 3.6 through 3.9. If you’re running Anaconda, you can install with:

conda install -c alubbock pygraphviz

This will also install Graphviz 2.41 as a dependency (don’t install it separately, it might conflict and not all versions are 64-bit compatible).

I don’t currently have a version for Python 3.5 or 32-bit versions of Windows, but I hope the above helps.

It is a real pain to install pygraphviz on Windows 10 but this is the simples solution which works for me:

Step 1: Download and install Graphviz

https://graphviz.gitlab.io/_pages/Download/Download_windows.html

Step 2: Add below path to your PATH environment variable

C:Program Files (x86)Graphviz2.38bin

Step 3: Re-open command line and activate venv in your project, example:

venvScriptsactivate

Step 4: Download binaries from below link:

https://github.com/CristiFati/Prebuilt-Binaries/tree/master/PyGraphviz/v1.5/Graphviz-2.42.2

Step 5. Install whl into your virtual environment

For example:

In case of python 3.7

pip install pygraphviz-1.5-cp37-cp37m-win_amd64.whl

In case of python 3.8

pip install pygraphviz-1.5-cp38-cp38-win_amd64.whl

Here’s how I installed 64 bit PyGraphViz for Windows 10:

Downloaded and installed GraphViz from https://www2.graphviz.org/Packages/stable/windows/10/cmake/Release/x64/graphviz-install-2.44.1-win64.exe

Made sure I had Visual C++ installed, e.g. from here:
https://visualstudio.microsoft.com/visual-cpp-build-tools/

Then I ran:

pip install --global-option=build_ext --global-option="-IC:Program FilesGraphviz 2.44.1include" --global-option="-LC:Program FilesGraphviz 2.44.1lib" pygraphviz

Then I had to add C:Program FilesGraphviz 2.44.1bin to my system path before import pygraphviz worked.

Finally, I had to run this in command prompt after the install to register plugins and be able to draw graphs: "C:Program FilesGraphviz 2.44.1bindot.exe" -c

Obviously, for a newer version of Graphviz you’ll need to check and update all the paths given above.

None of the above worked for me, so I will show what did worked on my windows 11 machine (I don’t think the windows version was the problem), which is in the pygraphviz documentation:

1. Install Visual C/C++, from here: https://visualstudio.microsoft.com/visual-cpp-build-tools/
   It shows up as a requirement and even if you did install it and try to reinstall with pip, it may not work because garphviz is another requirement.
2. Download and install graphviz for windows: stable_windows_10_cmake_Release_x64_graphviz-install-2.46.0-win64.exe
3. Restart your computer (as required per the first step)
4. Then install the library pygraphviz through Windows PowerShell with the following command (I don’t know why, with pip it still wasn’t working):

python -m pip install --global-option=build_ext `
          --global-option="-IC:Program FilesGraphvizinclude" `
          --global-option="-LC:Program FilesGraphvizlib" `
          pygraphviz

The true easiest way to install pygraphviz on Windows without conda or external packager is to use Gohlke’s wheels (opinion: His works should be assumed daily by someone in the Python Software Foundation)

1. Install latest or adapted graphviz package from graphviz using the 64bit or 32bit exe. Don’t forget to check the box "add to the path"

2. Restart the computer

3. Download Unofficial Windows Binaries for Python Extension Packages by Christoph Gohlke from the Laboratory for Fluorescence Dynamics, University of California, Irvine.

4. Open a terminal/powershell as admin on the folder where you downloaded the pygraphviz-version–python_version–win_version.whl and enter pip install pygraphviz-*version*-*python_version*-*win_version*.whl

5. Test the install by opening in the terminal/powershell and entering

   python

   import pygraphviz

if no error returns, pygraphviz is installed and functional

Try to install from your Anaconda (Python 3.8 recommended) environment using:

conda install -c conda-forge python-graphviz