Fastai/Pytorch - doesn't do "fitting" in RMarkdown

Hey all,

I am trying to copy a lesson from -- specifically, the one from this github document (in a jupyter notebook).

My goal is to run it in an RMarkdown document, with some code chunks as R (for the data munging) and some as Python (for the fastai/pytorch code itself).

It works well until I run the function -- I get the error ValueError: I/O operation on closed file.

Does anyone know what might be causing this?



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