Graphviz errors for abstract syntax tree (AST) vizualisation

[ColdTeapot273K]

• Issue: Calls of tsensor.astviz() produce no vizualisation, but error:

FileNotFoundError: [WinError 2]

• Environment:

  • win10 latest (11.10.2020)
  • conda 4.8.5 virtual env
  • conda-installed graphviz 0.14.2 XOR pip-installed graphviz 0.14.2

• Notes:

  • Issue seems to be about graphviz on windows in conda env, as per #1666.

• A working user-side fix (as per #1666 comment, also tested by me) is: if using conda env, install graphviz only like conda install python-graphviz, instead of pip install graphviz

  So the proper installation process of the current release for conda users would be like: conda install python-graphviz pip install tensor-sensor

[parrt]

interesting! I use pip for my graphviz. at least I think. does this tell us it's in pip on my box?

beast:master:~/github/tensor-sensor $ conda list |grep graphviz
python-graphviz           0.14.1                   pypi_0    pypi
beast:master:~/github/tensor-sensor $ pip list |grep graphviz
graphviz                           0.14.1

[parrt]

OH! You need brew install graphviz also on mac, which graphviz py lib uses. So maybe on windows we do conda install python-graphviz?