Draft: [5.x branch] Allow ipython 8+ v2

[eendebakpt]

Description of Changes

Test Spyder with ipython 8+

• Tests in python 3.7 will fail since ipython 8+ is not available
• ? Create Windows Installer / Windows installer (Lite) will fail since the updated spyder-kernels is not available in conda

Issue(s) Resolved

Fixes #

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[ccordoba12]

Closing and reopening to see if our tests run.

[ccordoba12]

@eendebakpt, some comments for you:

• I don't know why but we're not installing IPython 8 on Github actions:

  https://github.com/spyder-ide/spyder/actions/runs/3243542120/jobs/5318407187#step:12:128

  So, I'd suggest to change our dependency on IPython to be >=8.5.0,<9 to force our tests to really run with IPython 8. Besides, trying to support IPython 7 and 8 is too much for us, so I think it's better go only with 8 from now on.

• You also need to update the requirement in our setup.py.

• Please also make the >=8.5.0,<9 change in your Spyder-kernels PR and resync our subrepo here following the instructions in our Contributing guide.

[eendebakpt]

@ccordoba12 ipython 8+ does not support python 3.7 any longer (from the setup.py: IPython 8+ supports Python 3.8 and above, following NEP 29.). I will look into the tests for 3.8+

[eendebakpt]

@ccordoba12 I am not familiar with conda. Most tests fail because:

- nothing provides __win needed by ipython-8.5.0-pyh08f2357_1

This also happens on the Linux tests, even though __win is a virtual package related to windows (https://docs.conda.io/projects/conda/en/latest/user-guide/tasks/manage-virtual.html).

Do you have an idea what is going on?

[ccordoba12]

ipython 8+ does not support python 3.7 any longer

Right, I forgot about it. So we need to change the requirement to >=7.31.1,<9. However, your previous run was not picking up IPython 8 even for Python 3.9:

https://github.com/spyder-ide/spyder/actions/runs/3243542112/jobs/5318406491#step:11:115
https://github.com/spyder-ide/spyder/actions/runs/3243542104/jobs/5318406138#step:11:114

Do you have an idea what is going on?

Nop, sorry. But a way to solve this could be to force installing IPython 8 in our install.sh script for Python 3.9. Please try that for the pip part of the big if on it. That at least will run our tests on some Windows and Linux slots.

[eendebakpt]

@ccordoba12 For some reason I cannot get the dependencies right between the spyder-kernels and spyder reposities. But the Linux tests / Linux - Py3.9, conda, slow (pull_request) and Win tests / Windows - Py3.9, pip, slow (pull_request are running now with ipython 8+.

Besides some tests related to the package versions (test_dependencies_in_sync.py), there was only a single failing test. I created a separate PR to the 5.x branch to address this: #19885

[ccordoba12]

Ok, thanks a lot for your help with this! Unfortunately, I don't have time right now to fix our CIs so that they pass for all operating systems and Python versions.

So, I'm afraid this will have to wait until 5.4.1, to be released in December.

[ccordoba12]

Closing because this was superseded by PR #20271.