Use latest pytest and xdoctest

[Zeitsperre]

Pull Request Checklist:

• This PR addresses an already opened issue (for bug fixes / features)
  • This PR closes Update pytest requirement from <8.0 to <9.0 #1631
• Tests for the changes have been added (for bug fixes / features)
  • (If applicable) Documentation has been added / updated (for bug fixes / features)
• CHANGES.rst has been updated (with summary of main changes)
  • Link to issue (:issue:number) and pull request (:pull:number) has been added

What kind of change does this PR introduce?

• Unpins the pytest version now that xdoctest supports it.
• Pins to the latest xdoctest supporting pytest~=8.0.

Does this PR introduce a breaking change?

No.

Other information:

FYI @RondeauG

The newest pytest (v8.0.0) introduced some regressions for Windows users. An issue is already up and a patch should arrive shortly (pytest-dev/pytest#11895). Until then, use pytest<8.0 on Windows.

See also: pytest-dev/pytest#11969

[Zeitsperre]

The conda package is not yet available. Will re-run CI in a bit.

[Zeitsperre]

Looks like my namespace hack isn't working. I'll need to return to this next week.

[Zeitsperre]

The latest pytest (v8.0.0) seems to have broken the conventional approach for injecting commands into the doctest namespace (used in the doctests).

Waiting to see what happens in pytest-dev/pytest#11929

Update: Fix was merged to the main development branch. Should be fixed in pytest v8.0.1

[Zeitsperre]

This functionality has been borked with 8.0.0 (See: pytest-dev/pytest#11873). No way of upgrading until a fix arrives.

[Zeitsperre]

The issue persists: pytest-dev/pytest#11884

[github-actions]

Note

It appears that this Pull Request modifies the main.yml workflow.

On inspection, the XCLIM_TESTDATA_BRANCH environment variable is set to the most recent tag (v2023.12.14).

No further action is required.

[coveralls]

coverage: 89.384% (-1.0%) from 90.42%
when pulling 0c945db on unpin-pytest
into 7e4f7d9 on main.

[Zeitsperre]

This has been quite a day.

[aulemahal]

Looks good!