Defining a class of goats and overriding addition
Objects - Intermediate example from a Well House Consultants training course
More on Objects - Intermediate [link]
Source code: goat.py Module: Y112
""" Illustration of overloading. Adding two goats together
gives us a new goat if and only if the two goats input had
different genders. The new goat is called "newborn" """
"""Making a new goat"""
self.knownas = name
self.gender = gender
self.milk = output
def getname (self):
"""Finding out what a goat is called"""
def getmilk (self):
return self.milk * 365
def __add__ (this, that):
if this.gender == that.gender:
print "No baby goat"
doris = goat("newborn","M")
if __name__ == "__main__":
daisy = goat("Daisy","F",5)
flossie = goat("Flossie","F",4)
boris = goat("Boris","M")
herd = [daisy, flossie, boris]
for member in herd:
drinkable = member.getmilk()
called = member.getname()
print called," yields ",drinkable," litres annually"
Learn about this subject
This module and example are covered on the following public courses:
* Learning to program in Python
* Python Programming
* Intermediate Python
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