Week 1- Object Oriented Python

Author: jimit105

Week 1- Object Oriented Python/object1.py

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+# -*- coding: utf-8 -*-
+"""
+Created on Wed Jan 10 19:23:19 2018
+
+@author: Jimit
+"""
+
+class PartyAnimal:
+    x = 0
+    
+    def party(self):
+        self.x = self.x + 1
+        print('So far', self.x)
+
+an = PartyAnimal()
+
+an.party()  #Equivalent to PartyAnimal.party(an)
+an.party()
+an.party()
+PartyAnimal.party(an)
+
+print('Type:', type(an))
+print('Dir:', dir(an))

Week 1- Object Oriented Python/object2.py

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+# -*- coding: utf-8 -*-
+"""
+Created on Wed Jan 10 19:34:16 2018
+
+@author: Jimit
+"""
+
+class PartyAnimal:
+    x = 0
+    
+    # Constructor
+    def __init__(self):
+        print('I am constructed')
+        
+    # Method
+    def party(self):
+        self.x = self.x + 1
+        print('So far', self.x)
+        
+    # Destructor
+    def __del__(self):
+        print('I am destructed', self.x)
+        
+an = PartyAnimal()
+an.party()
+an.party()
+
+an = 42
+
+print('an contains', an)

Week 1- Object Oriented Python/object3.py

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+# -*- coding: utf-8 -*-
+"""
+Created on Wed Jan 10 19:42:27 2018
+
+@author: Jimit
+"""
+
+class PartyAnimal:
+    x = 0
+    name = ''
+    
+    def __init__(self, z):
+        self.name = z
+        print(self.name, 'constructed')
+        
+    def party(self):
+        self.x = self.x + 1
+        print(self.name, 'party count:', self.x)
+        
+s = PartyAnimal('Sally')
+s.party()
+
+j = PartyAnimal('Jim')
+j.party()
+s.party()
+
+PartyAnimal.party(j)    

Week 1- Object Oriented Python/object4.py

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+# -*- coding: utf-8 -*-
+"""
+Created on Wed Jan 10 19:50:52 2018
+
+@author: Jimit
+"""
+
+# Inheritance
+
+class PartyAnimal:
+    x = 0
+    name = ''
+    
+    def __init__(self, z):
+        self.name = z
+        print(self.name, 'constructed')
+        
+    def party(self):
+        self.x = self.x + 1
+        print(self.name, 'party count:', self.x)
+      
+# FootballFan is a class that extends to PartyAnimal
+# It has all capabilities of PartyAnimal and more..
+class FootballFan(PartyAnimal):
+    points = 0
+        
+    def touchdown(self):
+        self.points = self.points + 7
+        self.party()
+        print(self.name, 'points', self.points)
+        
+s = PartyAnimal('Sally')
+s.party()
+
+j = FootballFan('Jim')
+j.party()
+j.touchdown()
+
+
+
+"""
+
+OUTPUT
+
+Sally constructed
+Sally party count: 1
+Jim constructed     # Since there is no constructor of FootballFan, so constructor of PartyAnimal is called
+Jim party count: 1
+Jim party count: 2
+Jim points 7
+"""