Add Python 3.10

[ascillitoe]

Addresses #601

[ascillitoe]

This is currently blocked by pytorch/pytorch#66424.

[jklaise]

I guess technically torch is optional so we could say we support Python 3.10, but practically it wouldn't work and it would be a mess to get our CI working without the torch components. So probably best to wait.

[ascillitoe]

According to the PyTorch changelog (https://github.com/pytorch/pytorch/releases) the latest pytorch version (1.11) now supports Python 3.10 (although pytorch/pytorch#66424 suggests they won't have CI for it until 1.12). Given that torch is optional we're probably good to merge this in once the alibi-testing related CI error is resolved.

[ascillitoe]

Looks like the latest build failure is down to the typed-ast package, which doesn't play nicely with Python 3.10 on Windows. Without doing a full deps analysis, I suspect typed-ast might be being pulled in by mypy. See python/typed_ast#156 (comment) and python/mypy#10124. This might be a good time to move to mypy>=0.900, which drops typed-ast entirely (see here). Although we'll have to deal with the 3rd party library stubs change...

We might also just be able to enforce a newer typed-ast version (python/typed_ast#155 suggests the issue was recently fixed), although it still looks flaky to me...

p.s. Could also just pin the Windows/MacOS CI to 3.9 for now...

[codecov]

Codecov Report

Merging #605 (c44fc08) into master (6ce8a51) will decrease coverage by 1.70%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #605      +/-   ##
==========================================
- Coverage   82.10%   80.39%   -1.71%     
==========================================
  Files          77       77              
  Lines       10570    10597      +27     
==========================================
- Hits         8678     8519     -159     
- Misses       1892     2078     +186     

Impacted Files	Coverage Δ
alibi/explainers/tests/test_shap_wrappers.py	90.33% <100.00%> (-1.80%)	⬇️
alibi/utils/tests/test_distributed.py	56.87% <0.00%> (-37.92%)	⬇️
alibi/utils/distributed.py	30.66% <0.00%> (-36.89%)	⬇️
alibi/explainers/anchor_tabular.py	77.77% <0.00%> (-0.95%)	⬇️
alibi/explainers/anchor_base.py	86.70% <0.00%> (-0.64%)	⬇️
alibi/explainers/shap_wrappers.py	89.22% <0.00%> (-0.58%)	⬇️
alibi/api/defaults.py	100.00% <0.00%> (ø)
alibi/explainers/cfrl_base.py	88.17% <0.00%> (+0.08%)	⬆️
alibi/explainers/anchor_text.py	87.14% <0.00%> (+0.09%)	⬆️
... and 2 more

[ascillitoe]

The typo explainer._check_interactions.asert_not_called() in test_shap_wrappers.py caused the following error in Python 3.10:

AttributeError: 'asert_not_called' is not a valid assertion. Use a spec for the mock if 'asert_not_called' is meant to be an attribute.

asert has now been fixed to assert.

[jklaise]

Will need a rebase which should throw up another merge conflict as this has been automated on master. Not sure why it hasn't been thrown up already.

[ascillitoe]

This is because I screwed up. The above two lines are fenced inside comments, so the above change did nothing.

I actually updated the correct line (line 14) to use the automated versioning yesterday (5efc04b), so there is no need to update this manually at all now...

Will delete the confusing commented lines in master and rebase.