Sorting File

[Miraclefruit]

Write a program that displays the current justices ordered by the year they joined the Supreme Court. 


So there is a file containing the justices in this form: 
Henry,Baldwin,Andrew Jackson,PA,1830,1844

I have to create a new file and sort them into justices ordered by year they joined, and remove the excess information. Ex: Henry Baldwin.
This is what I have so far but I'm just starting out so I'm having difficulty. Any pseudocode or suggestions would be helpful. Thanks

def main():
    justices = placeDataIntoList("Justices.text")
    justices.sort
    createFile(justices)

def placeDataIntoList(fileName):
    data = []
    infile = open(filename, 'r')
    line = infile.readLine()
    for i in range(0,n):
        data = line.splt(',')
        justices(i).firsName = data(0)
        justicess(i).lastName = data(1)
        justices(i).apptPres = data(2)
        justices(i).state = data(3)
        justices(i).yrAppointed = data(4)
        justices(i).yrLeft = data(5)
    return data