REL: pytao v0.4.1

[ken-lauer]

Checklist

• Used a personal fork of the feedstock to propose changes
• Reset the build number to 0 (if the version changed)
• Re-rendered with the latest conda-smithy (Use the phrase @conda-forge-admin, please rerender in a comment in this PR for automated rerendering)
• Ensured the license file is being packaged.

[ken-lauer]

@conda-forge-admin, please rerender

[conda-forge-admin]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipe/meta.yaml) and found it was in an excellent condition.
I do have some suggestions for making it better though...

For recipe/meta.yaml:

• No valid build backend found for Python recipe for package pytao using pip. Python recipes using pip need to explicitly specify a build backend in the host section. If your recipe has built with only pip in the host section in the past, you likely should add setuptools to the host section of your recipe.

[ken-lauer]

Explanation of -k "not help and not test_plot":

• not help - tao.help() interface command test appears to be causing a segfault in the non-subprocess version. This is only on Azure Pipelines runners (i.e., this feedstock). I can't reproduce it locally on MacOS or Linux. Skipping it for now until we can get some more debug details back to Sagan.
• not test_plot - this is a broad removal of the majority of plotting tests, which are exceedingly slow on Azure Pipelines. The build has been timing out, so this is an arbitrary way to reduce the amount of time spent on tests in the feedstock.

[ken-lauer]

Ref bmad-sim/pytao#101