Exercise $2$

Files Exercise $2$

Problem

Write a program that reads a comma delimited CSV file with four columns and returns the average of each column in the file.

Expected Output

The first two lines of your code must look like this:

import $sys$

$tes{t}_f$ile $=sys.$argv$[1]$

This allows for different text files to be sent to your program for testing. Hint, to open the file use with open$($test$\_$file, $"$r$"...$ The TRY IT button below will send a test file to your program. You should see the following output:

$10\mathrm{.}08\mathrm{.}06\mathrm{.}020\mathrm{.}0$