Add column $(1)$

In the video, Hugo showed you how to add the length of the country names of the brics DataFrame in a new column:

for lab, row in brics.iterrows$()$ :

brics.loc$[$lab$,$ "name$\_$length"$]=$ len$($row$["$country$"])$

You can do similar things on the cars DataFrame.

Instructions

$100$ XP

Use a for loop to add a new column, named COUNTRY, that contains a uppercase version of the country names in the "country" column. You can use the string method upper$()$ for this.

To see if your code worked, print out cars. Don't indent this code, so that it's not part of the for loop.