Attrs – the Python library everyone needs (2016)

Re:Attrs – the Python library everyone needs (2016) by ahurmazda on Friday December 24, 2021 @04:55PM (#29678132)

Thanks. You do make a lot of good points.

Attrs just has the features I need for now. It certainly feel a touch verbose but I’m happy to pay the price.

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Re:Attrs – the Python library everyone needs (2016) by ledauphin on Friday December 24, 2021 @05:44PM (#29678488)

can you tell me which parts feel verbose? In my recent usage, I've not found myself using the older, more verbose approaches.

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Re:Attrs – the Python library everyone needs (2016) by skrtskrt on Friday December 24, 2021 @06:02PM (#29678645)

If you use the runtime type validators along with the python builtin type hints you constantly repeat yourself:

    id: UUID = attr.ib(validator=instance_of(UUID), …other parameters)

The type hint helps mypy and pylint work, while the validator is a runtime check by Attrs

If your attribute name is longer or you have other parameters to set, that can be a very long line (or lines) of code that you repeat for every attribute

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