I think there may be an issue with Pint - I just hit this error with Python 3.13 on my

Got that same Pint error in CI: <a href="https://github.com/simonw/datasette/actions/r

We currently pin to: <div class="Box-heade

Opened an issue against Pint here: <a class="issue-link js-iss

Test fail against Python 3.13-dev with a Pint error about datasette HOT 4 OPEN

simonw commented on June 4, 2024

Test fail against Python 3.13-dev with a Pint error

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Comments (4)

simonw commented on June 4, 2024

https://devguide.python.org/versions/ says that Python 3.13 is scheduled for release in October 2024.

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simonw commented on June 4, 2024

Got that same Pint error in CI: https://github.com/simonw/datasette/actions/runs/8681173571/job/23803398510?pr=2321

/opt/hostedtoolcache/Python/3.13.0-alpha.6/x64/lib/python3.13/site-packages/pint/delegates/txt_defparser/common.py:21: in <module>
    @dataclass(frozen=True)
/opt/hostedtoolcache/Python/3.13.0-alpha.6/x64/lib/python3.13/dataclasses.py:1289: in wrap
    return _process_class(cls, init, repr, eq, order, unsafe_hash,
/opt/hostedtoolcache/Python/3.13.0-alpha.6/x64/lib/python3.13/dataclasses.py:1044: in _process_class
    raise TypeError('cannot inherit frozen dataclass from a '
E   TypeError: cannot inherit frozen dataclass from a non-frozen one

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simonw commented on June 4, 2024

We currently pin to:

datasette/setup.py

Line 53 in 7d6d471

"pint>=0.9",

The most recent version is 0.23 from December 2023: https://github.com/hgrecco/pint/releases/tag/0.23

The only open issue I can find in Pint that relates to dataclasses is this one: