How to loop through a text file

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Python

Python2.4

I have a program that has a text file and what I am trying to do is grab the data and print it. However, when I look at my batting avergae, it is only grabbing the first average not the highest batting average

ef getLists():

    # Create a Variable to ask the user to get the file
    fname = input("Enter the name of the MLB stats data file: ")
    infile = open(fname, 'r')
    # Creates lists for the text file
    players = []
    teams = []
    positions = []
    runs = []
    hits = []
    homeruns = []
    averages = []

    line = infile.readline()
    for line in infile:
        line = line.strip()
        player, team, position, run, hit, homerun, average = line.split(',')
        players = players + [player]
        teams = teams + [team]
        positions = positions + [position]
        runs = runs + [run]
        hits = hits + [int(hit)]
        homeruns = homeruns + [int(homerun)]
        averages = averages + [float(average)]
    return players, teams, positions, runs, hits, homeruns, averages



# Find's the player with the highest average
def getHighestAverage(players, averages):
    highestAverage = 0
    for i in range(len(averages)):
        if highestAverage >= averages[i]:
            highestAverage = [i]

    print(players[highestAverage],averages[highestAverage])