Note another input param in a different task defined in the

Question

Note another input param in a different task defined in the same way except it s of type pandas DataFrame works Why is that ```def estimate test data Optional pd DataFrame = None ```

Samhita Alla · Answer

I m guessing it s because `encoder` is of type that isn t understood by Flyte whereas `pd DataFrame` is a Flyte native type But this should be supported < Eduardo Apolinario eapolinario > is this a bug

Niels Bantilan · Answer

this seems like a bug flyte should fallback on `FlytePickle` in cases where the type is not understood unless this is a known limitation of the Union type in which case the error message should be more informative < Frank Shen> can you share a minimally reproducible example

Eduardo Apolinario (eapolinario) · Answer

Two things 1 Optional parameters are not supported in tasks yet 2 This looks like a bug in our support for unions Samhita is right this should be supported

Frank Shen · Answer

< Niels Bantilan> The task s input dataframe is either supplied by the caller or None if user doesn t have a df as input I tried both with or without Optional ```def estimate test data Optional pd DataFrame = None def estimate test data pd DataFrame = None ```

Frank Shen · Answer

In both cases when None is the input it will fail

Niels Bantilan · Answer

flyte bug

Slackbot · Answer

ladybug Create a new Flyte Bug issue <https github com flyteorg flyte issues new assignees= amp labels=bug 2Cuntriaged amp template=bug report yaml amp title= 5BBUG 5D+>

Niels Bantilan · Answer

< Frank Shen> would you mind filling out a bug report for the error ideally it contains a copy pastable example the repros the error

Frank Shen · Answer

< Niels Bantilan> done