#read_running_times. py # chapter 6.2 page 258 def main(): # open the video_times. txt file for reading. video_file = open('video_times. txt', 'r') # initialize an accumulator to 0.0 total = 0.0 # initialize a variable to keep count of the videos. count = 0 print('here are the running times for each video: ') # get the values from the file and total them. for line in video_file # convert a line to a float. run_time = float(line) # add 1 to the count variable. count += 1 # display the time. print('video #', count, ': ', run_time, sep='') # add the time to total. total += count # close the file video_file. close() # display the total of the running times. print('the total running time is', total, 'seconds.') # call the main function main()