"error in pydot2 setup command: use_2to3 is invalid" while installing requirements-rtd.txt dependencies

[Ankit Dhankhar]

Description of your problem or feature request

While setting up Aesaro from latest commit (3eb7cdfaa7b97c9791d8303ae440a5f141c6d813) by following this [guide] (https://aesara.readthedocs.io/en/latest/dev_start_guide.html). On running pip install -r requirements-rtd.txt following error is thrown:

Obtaining file:///home/ankit/Desktop/Github/Aesara (from -r requirements-rtd.txt (line 1))
  Installing build dependencies ... done
  Checking if build backend supports build_editable ... done
  Getting requirements to build editable ... done
  Preparing editable metadata (pyproject.toml) ... done
Requirement already satisfied: sphinx>=1.3.0 in /home/ankit/miniconda3/envs/aesara-dev/lib/python3.10/site-packages (from -r requirements-rtd.txt (line 2)) (6.1.3)
Collecting sphinx-book-theme
  Using cached sphinx_book_theme-1.0.1-py3-none-any.whl (396 kB)
Collecting sphinx-design
  Using cached sphinx_design-0.3.0-py3-none-any.whl (2.2 MB)
Collecting jinja2<3.1.0
  Using cached Jinja2-3.0.3-py3-none-any.whl (133 kB)
Requirement already satisfied: pygments in /home/ankit/miniconda3/envs/aesara-dev/lib/python3.10/site-packages (from -r requirements-rtd.txt (line 6)) (2.14.0)
Requirement already satisfied: pytest in /home/ankit/miniconda3/envs/aesara-dev/lib/python3.10/site-packages (from -r requirements-rtd.txt (line 7)) (7.2.2)
Requirement already satisfied: numpy in /home/ankit/miniconda3/envs/aesara-dev/lib/python3.10/site-packages (from -r requirements-rtd.txt (line 8)) (1.22.4)
Collecting gnumpy
  Using cached gnumpy-0.2.tar.gz (28 kB)
  Preparing metadata (setup.py) ... done
Requirement already satisfied: pydot in /home/ankit/miniconda3/envs/aesara-dev/lib/python3.10/site-packages (from -r requirements-rtd.txt (line 10)) (1.4.2)
Collecting pydot2
  Using cached pydot2-1.0.33.tar.gz (19 kB)
  Preparing metadata (setup.py) ... error
  error: subprocess-exited-with-error
  
  × python setup.py egg_info did not run successfully.
  │ exit code: 1
  ╰─> [1 lines of output]
      error in pydot2 setup command: use_2to3 is invalid.
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
error: metadata-generation-failed

× Encountered error while generating package metadata.
╰─> See above for output.

note: This is an issue with the package mentioned above, not pip.
hint: See above for details.

Same issue can be reproduced by running pip install pydot2

This issue is previously reported in this and this discussion thread which was fixed by removing pydot2 from requirement-rtd.txt and pinning the version of sepuptools to older version (latest in this case v67.6.1) respectively.

Versions and main components

• Aesara version: git commit - 3eb7cdf
• Python version: Python 3.10.10
• Operating system: GNU/Linux
• How did you install Aesara: (git + conda) by following this [guide] (https://aesara.readthedocs.io/en/latest/dev_start_guide.html)

Opening this issue to start discussion for the holistic solution of above issue.

• solution 1 (preferred) : Removed dependency from pydot2 in requirement-rtd.txt
• solution 2 : Add a message in [guide] (https://aesara.readthedocs.io/en/latest/dev_start_guide.html) to pin the version of setuptool to older version.

I would be glad to submit the PR for fixing this issue.

[Brandon T. Willard]

I would be glad to submit the PR for fixing this issue.

That would be great, thanks!