Merge pull request #2 from PadamSethia/PadamSethia-patch-2

Added sum_decorator.py

SimpleAddition/sum_decorator.py

@@ -0,0 +1,25 @@
+# Most python newbies may not be knowing about decorators
+# They are inbuit python funcitons also know as magic function
+# They have a general format like __self__ , __SOMETHING__ etc.
+
+# So for this script we'll be using Pyhton decorators to add
+# numbers
+
+# 1. Simple Addition
+print (5).__add__(7) # prints 12
+
+print (2).__add__(1) # prints 3
+
+# 2. Functions
+
+class Number(int):
+'''
+  i have not use '+' to add self and other as '+' references to 
+  __add__ , hence it would create an infinite recursion.
+  So we used two '-' to add the two numbers.
+'''
+  def __add__(self, other):
+        return self - (-other)
+
+print Number(5) + 3 # Prints 8 
+