Nose with Python 3.10

[skiedude]

While looking into the CI failures on linked packs on #153 it appears the python package nose is causing a lot of failures.

While I didn't check all linked packs, of the 4 I checked 2 were failing due to nose on Python 3.10. But I assume every CI testing in Python3.10 using this CI as a base is going to fail for this issue.

https://github.com/StackStorm-Exchange/stackstorm-github/actions/runs/12326010817/job/34406161027#step:6:378
https://github.com/StackStorm-Exchange/stackstorm-terraform/actions/runs/12326013523/job/34406167325#step:6:338

nose uses collections.Callable but in python 3.10 that was moved to collections.abc.Callable which is causing an attribute error AttributeError: module 'collections' has no attribute 'Callable' nose-devs/nose#1122 . Unfortunately nose is also abandoned, so no official fix in this module is going to take place.

pynose https://pypi.org/project/pynose/ looks to be a currently maintained successor. As i'm not familiar with nose at all, I'm not sure if its going to be an easy straight across replacement of package.

However I think a good chunk of the failing CI tests are atleast initially from this issue.

[skiedude]

Ok I decided just to try and get it to work with my own fork of the ci repo.

Using this ci fork https://github.com/skiedude/ci/tree/python I had to make a handful of changes to get pynose installed.

I found the following:

1. all the packages in ci/blob/master/.github/actions/py-dependencies/requirements-pack-tests.txt are being ignored because they don't pin a version ==
2. I added pynose with a version, which caused it to be installed!
3. However nose was still being installed. This was a result of the main https://github.com/StackStorm/st2/blob/master/requirements.txt#L36 actually being the location where nose was installed in the CI.
4. I added a custom step to uninstall nose and force reinstall pynose to get around this temporarily.

With all of the above changes, the CI on stackstorm-github passes on 3.10 (as well as 3.8, 3.9)
StackStorm-Exchange/stackstorm-github#57

Ultimately, updating nose to pynose in the st2/requirements.txt achieves all these work arounds I had to do.

[skiedude]

And I guess I just have impeccable timing as StackStorm/st2#6291 was just opened 🙂

[nzlosh]

As per #6291, there's already been work to move to pytest as the preferred testing framework but thank you for taking the initiative to look into this. 👍