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by pretoriusdre 447 days ago
CSV has caused me a lot of problems due to the weak type system. If I save a Dataframe to CSV and reload it, there is no guarantee that I'll end up with an identical dataframe.

I can depend on parquet. The only real disadvantages with parquet are that they aren't human-readable or mutable, but I can live with that since I can easily load and resave them.