Adding PyTwin to the PyAnsys metapackage - Needs to support Python 3.7

[RobPasMue]

Hi all!

As per @MaxJPRey request, I tried to add pytwin to the pyansys metapackage repository, so that it is distributed as part of our bundle package.

However, we encountered some issues in the process. It seems that pytwin does not support Python 3.7. This is a requirement for the metapackage since we are ensuring that all Python versions that are currently maintained keep being supported. This means Python 3.7 to 3.10. In fact, we are in process of supporting Python 3.11 as well - but this may take a while.

Would it be possible to make pytwin support Python 3.7? I can help you out implementing the needed changes. Thanks in advance!! 😃

[lboucin]

Hell @RobPasMue!
Thanks for looking at this.
I've created maint/python_3.7 branch to implement requested change to support python 3.7. I'll keep you posted once it is done.
FYI @chrpetre

[RobPasMue]

That's awesome @lboucin! Thanks for looking into it. If you need any help let me know.

By the way, it looks like your pytwin-win10 runner is offline, all your workflows fail to complete because of this reason. Are you aware of this?

[lboucin]

Thank you @RobPasMue for pointing that out to me. I've just restarted the pytwin-win10 runner and workflows are now running fine. FYI, we've scheduled to remove this Ansys hosted runner sometime during 23R2 dev cycle.

[RobPasMue]

Sounds like a great idea! The more we use GitHub's own runners the better - that way we do not need dedicated machines for running our CI/CD pipelines.

[lboucin]

Hello @RobPasMue, Fyi, I'm still working on supporting python3.7 on this branch (maint/python3.7). I've encountered multiple issues:

• numpy support for python 3.7 (fixed by PR63)
• importlib.metadata not a python 3.7 standard package, fixed by importing importlib_metadata instead (see here).
• shutil.copytree does not support dirs_exist_ok argument in python 3.7 (on going, see here). I am not sure what is the best way to fix this later one. Do you have an idea?

[RobPasMue]

Hi @lboucin!

• Yes, indeed, PR Use flexible dependencies to numpy and pandas #63 should fix the numpy issue. It will resolve the version needed for your Python version.
• importlb_metadata is needed for Python 3.7 indeed. You could add it to your dependencies (in your pyproject.toml file) as follows:

[tool.poetry.dependencies]
...
importlib-metadata = {version = "^4.0", python = "<3.8"}

• Hmm that last point with shutil.copytree is interesting... what about distutils? See https://docs.python.org/3/distutils/apiref.html#distutils.dir_util.copy_tree Let me know if that could work for you.

[lboucin]

Hello @RobPasMue, PR66 should solve this issue. Could you please review it? Thanks!

[lboucin]

Completed with PR66

[RobPasMue]

Awesome! I recommend you do a new release with all these changes whenever possible :)