In lesson1-rf.ipynb, I can get this line to crash the notebook kernel consistently if df_raw is reloaded from pd.read_feather.
df, y, nas = proc_df(df_raw, ‘SalePrice’)
However, if I skip the step “df_raw = pd.read_feather(‘tmp/bulldozers-raw’)” (ie, df_raw is the result from executing all the previous steps in the lesson from the beginning), then proc_df works.
I’m on paperspace.