Assignment 1
Split the variable into a list, pend_list, of the lines in the file. 

Assignment 2
Re-open the file pendulum.txt with f as the file object. 

Assignment 3
The open function returns a
        string
        list
        file object
        function

What does the function splitlines() do.
     Displays the data as strings,all in a line
     Displays the data line by line as strings
     Displays the data line by line but not as strings