train_df, _

[elyselam]

Hello,
Thanks for sharing the notebook :) Can you please clarify what this snippet of code does?
Does the underscore in
train_df, _ = derive_time_features(train_df)
tells the return function to ignore start_hour?

[diogojapinto]

That is correct, I don't care about the second return value. You can check a detailed explanation for example here: https://hackernoon.com/understanding-the-underscore-of-python-309d1a029edc