E4-1.py

# Copyright (C) Deepali Srivastava - All Rights Reserved
# This code is part of Python course available on CourseGalaxy.com

class Time:
    def __init__(self,h,m,s):
        self._h = h 
        self._m = m
        self._s = s

    #Read-only field accessors
    @property
    def hours(self):
        return self._h

    @property
    def minutes(self):
        return self._m

    @property
    def seconds(self):
        return self._s

    def __eq__(self,other):
        return True if _cmp(self,other) == 0 else False
        
    def __lt__(self,other):
        return True if _cmp(self,other) == 1 else False

    def __le__(self,other):
        return True if (_cmp(self,other) == 0 or _cmp(self,other) == 1)  else False

def _cmp(time1,time2):
        if time1._h < time2._h:
            return 1
        if time1._h > time2._h:
            return -1
        if time1._m < time2._m:
            return 1
        if time1._m > time2._m:
            return -1
        if time1._s < time2._s:
            return 1
        if time1._s > time2._s:
            return -1
        return 0

t1 = Time(13, 10, 5)
t2 = Time(5, 15, 30)
t3 = Time(5, 15, 30)
print(t1 < t2)
print(t1 > t2)
print(t1 == t2)
print(t2 == t3)