Anaconda version of pygraphviz is broken

[jarrodmillman]

Anaconda hasn't updated PyGraphviz since version 1.3 (Released: Sep 5, 2015) and the version of Graphviz they support (2.40.1) does not work with PyGraphviz.

• https://anaconda.org/anaconda/graphviz
• https://anaconda.org/anaconda/pygraphviz

Conda-forge is current (and instructions for using it will be added to our install instructions soon)!!

If you want to use PyGraphviz, please see our install instructions:

• https://pygraphviz.github.io/documentation/stable/install.html

If you are able to update Anaconda, please let us know so we can update this issue.

[jayqi]

Noting here that I had problems with conda-forge on macOS, reported on the feedstock here: conda-forge/pygraphviz-feedstock#17 (comment)

When installing both graphviz and pygraphviz through conda-forge on macOS and Python 3.8.6, it looks like I am successfully installing compatible versions, but I get a runtime error when trying import pygraphviz. See linked issue above for more details.

When using graphviz installed separately through homebrew instead, and only installing pygraphviz via conda-forge, everything works without any problems.

Update: this seemed to be a transient problem that resolved itself. I'm not sure what the root cause was or how to avoid running into it again.

[nehaljwani]

I've submitted a merge request at conda-forge/graphviz-feedstock#59 to update conda-forge graphviz to 2.46.1 and add support for Windows.

[nehaljwani]

Graphviz 2.46.1 is now available on conda-forge for osx-64, linux-64, linux-ppc64le, linux-aarch64 and win-64.
I've opened another MR to update the pin for all platforms at conda-forge/conda-forge-pinning-feedstock#1220

[rossbar]

Thanks for reporting @jayqi and @nehaljwani for the PR to update graphviz on conda forge!

[jarrodmillman]

@nehaljwani This is excellent news! Thanks so much for updating this.

I don't use Anaconda/Conda and am not familiar how to get things updated. I believe that Anaconda may be updating based on conda-forge, but I am not sure how to get packages updated. It would be great if you (or someone else) could figure out how to get these packages updated as well:

• https://anaconda.org/anaconda/graphviz
• https://anaconda.org/anaconda/pygraphviz

Once they update both packages, we can close this issue!

[nehaljwani]

PyGraphViz v1.6 and v1.7 builds for Windows are now available on Conda Forge:

❯❯❯ CONDA_SUBDIR=win-64 conda search -c conda-forge pygraphviz
Loading channels: done
# Name                       Version           Build  Channel             
pygraphviz                       1.6  py36h2f0202a_1  conda-forge         
pygraphviz                       1.6  py37h32dab02_1  conda-forge         
pygraphviz                       1.6  py38ha451c30_1  conda-forge         
pygraphviz                       1.6  py39he8c86ab_1  conda-forge         
pygraphviz                       1.7  py37h32dab02_0  conda-forge         
pygraphviz                       1.7  py38ha451c30_0  conda-forge         
pygraphviz                       1.7  py39he8c86ab_0  conda-forge

[nehaljwani]

I've raised an issue at AnacondaRecipes/pygraphviz-feedstock#1 for the Anaconda devs.

[MridulS]

Just in case some one runs into this again, the default channel is still pretty behind:

https://anaconda.org/anaconda/graphviz -> 2.5.0
https://anaconda.org/conda-forge/graphviz -> 8.1.0

https://anaconda.org/anaconda/pygraphviz -> 1.9
https://anaconda.org/conda-forge/pygraphviz -> 1.11

Please make sure to use the conda-forge channel with the right channel priority:

$ conda config --set channel_priority disabled