Return the city column of orders as a category, then its dtype

pandas · from dtypes in pandas

df.dtypesstr vs objectInt64categorydatetime64astypepd.NA

Putting the kettle on…

Starting up…

Exercise 3

Return the city column of orders as a category, then its dtype.

your answer
stuck? the lesson behind it
dtypes in pandas
One type per column — plus the nullable and categorical ones pandas had to add.