Using the ALE.txt file, I'm trying to create a new output text file containing the information in descending order accordingly to the picture in Table 5.7. But the output is blank on my part.

My code:

def main():

infile = open("ALE.txt", 'r')

scoreboard = [] # Keeps the tuples in an array

for line in infile:

# While storing the value, calculate win percentages

tok = line.rstrip(' ').split(',')

t = (tok[0], tok[1], tok[2], "{0:.3f}".format(float(tok[1])/(float(tok[1]) + float(tok[2]))))

scoreboard.append(t) # Adding to the list

# Sorting the tuples of the 3rd column in the table of the win percentage

scoreboard = sorted(scoreboard, key=lambda x: x[3], reverse=True)

# Open output file and writing to it

output = open('newALE.txt', 'w')

for tuple in array:

output.write(",".join(mytuple) + " ")

output.close()

main()

ALE.txt file data:

Baltimore,93,69

Boston,69,93

New York,95,67

Tampa Bay,90,72

Toronto,73,89

\f