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Ensure MyPy always runs with at least Python 3.6. #10602

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merged 1 commit into from Aug 13, 2020
Merged

Ensure MyPy always runs with at least Python 3.6. #10602

merged 1 commit into from Aug 13, 2020

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jsirois
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@jsirois jsirois commented Aug 12, 2020

MyPy only requires Python 3.5 but we have lots of code that uses Python 3.6
features which will not parse under Python 3.5. As such bump the default
interpreter constraints to be compatible with both MyPy and our codebase.

This will be fixed correctly as part of #10131.

[ci skip-rust]
[ci skip-build-wheels]

@jsirois
Ensure MyPy always runs with at least Python 3.6.
f4b5aa6 
MyPy only requires Python 3.5 but we have lots of code that uses Python 3.6
features which will not parse under Python 3.5. As such bump the default
interpreter constraints to be compatible with both MyPy and our codebase.

This will be fixed correctly as part of pantsbuild#10131.

# Rust tests and lints will be skipped. Delete if not intended.
[ci skip-rust]

# Building wheels and fs_util will be skipped. Delete if not intended.
[ci skip-build-wheels]
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jsirois commented Aug 12, 2020

This fixes a latent CI error seen by #10577 here: https://travis-ci.com/github/pantsbuild/pants/jobs/371308918

...
16:19:08 [INFO] Starting: Run MyPy on 490 files.
16:19:10 [INFO] Completed: Run MyPy on 490 files.
𐄂 MyPy failed.
build-support/bin/bootstrap_and_deploy_ci_pants_pex.py:22:13: error: Format
strings are only supported in Python 3.6 and greater  [syntax]
                f"{Path.cwd()}."
                ^
Found 1 error in 1 file (checked 485 source files)
...

@jsirois jsirois mentioned this pull request Aug 12, 2020
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Coverage Status

Coverage remained the same at 0.0% when pulling f4b5aa6 on jsirois:issues/10131/hack-around-incorrect-interpreter-picked-by-mypy-rules into 05c3fd2 on pantsbuild:master.

@jsirois jsirois merged commit 287b977 into pantsbuild:master Aug 13, 2020
@jsirois jsirois deleted the issues/10131/hack-around-incorrect-interpreter-picked-by-mypy-rules branch August 13, 2020 01:43
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@Eric-Arellano Eric-Arellano Eric-Arellano approved these changes

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