Add demo for class data scalability (in class Man_from_moon)

Author: adipandas

SimpleOOP/src/simpleoop.py

@@ -26,14 +26,39 @@ def series(self):
             yield self.b
             self.a, self.b = self.b, self.a+self.b
 
-class Mouth():
+class Mouth:
     def __init__(self):
         print('Constructor is called while object is defined.')
     def speak(self):
         print('Mouth can speak.')
     def sing(self):
         print('Mouth can sing.')    
 
+class Man_from_moon():
+    def __init__(self, **kargs):
+        print('This class defines the scalability of the class data.')
+        print('Use of dictoionaries in class variable definition can make the class data scalable easily.')
+        self.variables = kargs
+        
+    def get_face(self):
+        print('Getting the face of man from moon')
+        print('This makes it with limited scalability')
+        return self.variables.get('face', None)     # default value returned for face is None
+    
+    def set_face(self, face):
+        print('Setting the face of man from moon')
+        print('This makes it with limited scalability')
+        self.variables['face'] = face
+    
+    def get_variable(self, k):
+        # k is the name of the varible
+        print('using the key word variables to set and get makes it easier to deal with scalibility of class data')
+        return self.variables.get(k, None)      # default value of 'None' is returned if variable not defined
+    
+    def set_variable(self, k, v):
+        print('Key-value argument makes the class model easily scalable in python.')
+        self.variables[k] = v
+
 def main():
     # instantiate: make object of the class
     f = Fibonacci(0,1)
@@ -46,5 +71,16 @@ def main():
     my_mouth = Mouth()      # my_mouth = object of the class Mouth
     my_mouth.speak()
     my_mouth.sing()
-
+    
+    # class data scalability discussed and demonstrated
+    marty = Man_from_moon(face = 'MoonFace', intelligence = 'HighIntell')
+    print('Getting face value from constructor: ', marty.get_face())    
+    marty.set_face('ManFace')
+    print('Getting face value from Getter Method: ', marty.get_face())
+    print('\nAddressing Scalability:') 
+    print('Getting value of \'face\' constructor:', marty.get_variable('face'))
+    print('Getting value of \'intelligence\' set in constructor:', marty.get_variable('intelligence'))
+    marty.set_variable('intelligence', 'VeryHighIntell')
+    print('Getting new value of \'intelligence\':', marty.get_variable('intelligence'))
+    
 if __name__ == '__main__': main()