Improve error message when polars frame is returned but connectorx is not installed

pydiverse / pydiverse.pipedag

A data pipeline orchestration library for rapid iterative development with automatic cache invalidation allowing users to focus writing their tasks in pandas, polars, sqlalchemy, ibis, and alike.

https://pydiversepipedag.readthedocs.io/

BSD 3-Clause "New" or "Revised" License

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Improve error message when polars frame is returned but connectorx is not installed #108

Closed windiana42 closed 1 year ago

windiana42 commented 1 year ago

I currently get this error message and it took me a while that the hook was not registered because connectorx was not installed:

TypeError: Can't materialize Table with underlying type <class 'polars.dataframe.frame.DataFrame'>