TC SRM144 DIV2 200pts Python

Problem wants us to convert seconds integer to Hour:Minute:Second string format.

#class, function names and variables were given in the problem.
class Time(object):
def whatTime(self, seconds):
    #I divided seconds by 3600 because 1 hour is 3600 second.
    h = seconds / 3600
    #I divided remaining from hour by 60
    m = (seconds % 3600) / 60
    #I find remaining from seconds division by 60,
    #because everything that can be divisible by 60 will be used by hour and minute
    s = (seconds % 60)
    #Put them in H:M:S string format
    return str(h)+":"+str(m)+":"+str(s)