python

Write a function named "read_data()" that builds a list of lists from the provided data file (nutrition_data.csv). In this function you'll need to:

Create an empty list variable that will contain the list of lists

Create a while loop that reads each line from the data file. Each line in the file contains a comma separated string of four items. As you read the line, also strip the " " from the end of the line and store it temporarily in a variable

Use a Split() function to split the temporary line variable based on a comma. This will create a list of those items.

Append this new small list to the main list variable created in the first bullet point

Close the file

Return the new main list