Question

I dont know how to get this code working???

this is my code:

# 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: # Error 1: use : to end this line
# 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 += run_time # Error 2: add run_time to total

# 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()

and this is the error that I get:

Traceback (most recent call last):
File "/Users/muus/Desktop/DebuggingPython/read_running_times.py", line 39, in <module>
main()
File "/Users/muus/Desktop/DebuggingPython/read_running_times.py", line 7, in main
video_file = open('video_times.txt', 'r')
FileNotFoundError: [Errno 2] No such file or directory: 'video_times.txt'

Answer 1

# read_running_times.py
# Chapter 6.2 Page 258


def main():
    try:
        # 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:  # Error 1: use : to end this line
            # 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 += run_time  # Error 2: add run_time to total

        # Close the file
        video_file.close()

        # Display the total of the running times.
        print('The total running time is', total, 'seconds.')
    except FileNotFoundError:
        print("video_times.txt does not exists.")


# Call the main function
main()