Fix new MyPy errors in main

[potiuk]

Those MyPe errors are side effect of some new dependencies.

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[potiuk]

BTW. A number of those errors (except the big google Retry) are because MyPy has quite a big problem with recognizing that for example our airflow.providers.grpc module is not the same as grpc . This is because provider's module is implicit and somehow mypy things that grpc is the top-level module (same with jenkins and few others). We will have to solve it better when we split providers from the core.

[github-actions]

The PR most likely needs to run full matrix of tests because it modifies parts of the core of Airflow. However, committers might decide to merge it quickly and take the risk. If they don't merge it quickly - please rebase it to the latest main at your convenience, or amend the last commit of the PR, and push it with --force-with-lease.

[malthe]

Why are template_fields and template_ext now sequences and not instead Iterable – ?

If someone wants a deterministic order, then can use a list or tuple as the value.

[potiuk]

Why are template_fields and template_ext now sequences and not instead Iterable – ?

If someone wants a deterministic order, then can use a list or tuple as the value.

I just fixed consistency. I think there is no particular reason. I do not think it matters as long as it consistent. You can make a PR to change it ti Iterable -but it has to be consistent in all providers and code.

[potiuk]

It also could be that somewhere in the code len() is used and that would make it not good candidate for Iterable.

[malthe]

@potiuk from the description of those attributes, I don't see why any code would do len() on it. It seems you've got to iterate until you find a match or keep trying.

[potiuk]

Yeah. Could be :) . I do not see any problem with changing it to Iterable if it passes all the tests. I