Pandas warnings
At the moment, two warnings appear regularly at pipeline run time.
Setting values on copies:
<file>:<line>: SettingWithCopyWarning:
A value is trying to be set on a copy of a slice from a DataFrame
See the caveats in the documentation: https://pandas.pydata.org/pandas-docs/stable/user_guide/indexing.html#returning-a-view-versus-a-copy
Column types and memory:
<file>:<line>: DtypeWarning: Columns (<colnumbers>) have mixed types.Specify dtype option on import or set low_memory=False.