# Re: OOP with MyTime

```On 2014-07-03 13:51, kjaku...@gmail.com wrote:
```
```On Wednesday, July 2, 2014 4:02:00 PM UTC-4, MRAB wrote:
```
`>`
```
If you want 'between' to be an instance method of the MyTime class, it

needs 'self' as well as the 2 arguments 't1' and 't2'.

You can then compare the hours, minutes and seconds of self against

those of t1 and t2:

def between(self, t1, t2):

return (t1.hours, t1.minutes, t1.seconds) <= (self.hours,

self.minutes, self.seconds) and (self.hours, self.minutes, self.seconds)

<= (t2.hours, t2.minutes, t2.seconds)

That could be shortened further using chained comparisons.

Note that the code assumes that the times t1 and t2 are ordered, i.e.

that time t1 is not later/greater than time t2.
```
```
So I've now gotten this:
class MyTime:

def __init__(self, hrs=0, mins=0, secs=0):
self.hours = hrs
self.minutes = mins
self.seconds = secs

if self.seconds >= 60:
self.minutes += self.seconds // 60
self.seconds = self.seconds % 60

if self.minutes >= 60:
self.hours += self.minutes // 60
self.minutes = self.minutes % 60

if self.hours >= 24:
self.hours = self.hours % 24

def get_sec(self):
return (self.hours * 60 + self.minutes) * 60 + self.seconds

def __str__(self):
return "{:02d}:{:02d}:{:02d}".\
format(self.hours, self.minutes, self.seconds)

def between(self, t1, t2):
return (t1.hours, t1.minutes, t1.seconds) <= (self.hours, self.minutes,
self.seconds) and (self.hours, self.minutes, self.seconds) <= (t2.hours,
t2.minutes, t2.seconds)

t1 = MyTime(9, 59, 59)
print("t1 =", t1)

t2 = MyTime(10, 0, 1)
print("t2 =", t2)

t3 = MyTime(10, 0, 0)
print("t3 =", t3)

print("between(t2, t3, t1) =", between(t2, t3, t1))
print("between(t1, t3, t2) =", between(t1, t3, t2))
print("between(t3, t1, t2) =", between(t3, t1, t2))
print("between(t1, t2, t3) =", between(t1, t2, t3))

Am I on the right track or? Not sure where to go from here

```
```You need to decide whether you want 'between' to be a method of the
MyTime class or a separate function.

In the above code it's defined as a method, so you can say:

t2.between(t3, t1)

which means "is t2 between t3 and t1?".

That would return False because t3 is greater than t1, but:

t2.between(t1, t3)

would return True.

(I _did_ say that it assumes that the times are ordered.)

BTW, gmail is messing up your messages. This will tell you how to fix
it:

--
https://mail.python.org/mailman/listinfo/python-list
```