Python tool: cannot save to gallery when "Validate workflow" option is selected

[fed_]

Hello, 

I'm having some issues with saving to the gallery any workflow that is using the python tool, if I decide to validate it before saving.

I always have my code split into multiple jupyter cells. When I try to save the workflows to my private gallery I run into the following errors

It looks like to me that the result of previous cells execution is not cached. If I move all the code to the first cell, the error disappears.
Is this the expected behaviour?

Is there a way for me to keep code split into cells, but be able to validate & save successfully to the gallery?

_In attachment a test workflow as I cannot share my original ones.
Thanks for your help

[AZuc]

@fed_ ,

I was able to reproduce the behavior in both interactive and production mode.

But I was able to publish without validation and it worked fine.

Basically the validation phase is a run with no records. To simulate that, I added a filter with a condition 1=0 before the python tool and I had the same error.

You can publish without validate as a workaround, and then test to see if your code could manage a 0 record input.