My main use for notebooks is a simple way to constantly hold a whole large dataset in memory. That way if I want to try some feature reduction or remove some ba

My main use for notebooks is a simple way to constantly hold a whole large dataset in memory. That way if I want to try some feature reduction or remove some bad result, I can just do that and not wait 10 minutes for my slow PC to rerun my import code. I feel like an easy way to do that in base python would draw me away from notebooks.