class AthleteList(list):
    def __init__(self, a_name, a_dob=None, a_times=[]):
        list.__init__([])
        self.name = a_name
        self.dob = a_dob
        self.extend(a_times)

    def top3(self):
        return(sorted(set([sanitize(t) for t in self]))[0:3])

def sanitize(time_string):
    if '-' in time_string:
        splitter = '-'
    elif ':' in time_string:
        splitter = ':'
    else:
        return(time_string)
    (mins, secs) = time_string.split(splitter)
    return(mins + '.' + secs)

def get_coach_data(filename):
    try:
        with open(filename) as f:
            data = f.readline()
            templ = data.strip().split(',')
        return(AthleteList(templ.pop(0), templ.pop(0), templ))
    except IOError as ioerr:
        print('File error: ' + str(ioerr))
        return(None)


james = get_coach_data('james2.txt')
julie = get_coach_data('julie2.txt')
mikey = get_coach_data('mikey2.txt')
sarah = get_coach_data('sarah2.txt')

print(james.name + "'s times are: " + str(james))
print(julie.name + "'s times are: " + str(julie))
print(mikey.name + "'s times are: " + str(mikey))
print(sarah.name + "'s times are: " + str(sarah) + "\n")

print(james.name + "'s fastest times are: " + str(james.top3()))
print(julie.name + "'s fastest times are: " + str(julie.top3()))
print(mikey.name + "'s fastest times are: " + str(mikey.top3()))
print(sarah.name + "'s fastest times are: " + str(sarah.top3()) + "\n")

vera = AthleteList("Vera Vi", "2002-1-15")
vera.append("1.31")
print(vera.top3())
vera.extend(["2.22", "1-21", "2:22"])
print(vera.top3())
print(vera.name + "'s times are: " + str(vera))
print(vera.name + "'s fastest times are: " + str(vera.top3()))
