Adds main eg

Author: hegdeashwin

codes/ch1/main.py

@@ -0,0 +1,10 @@
+#!/usr/bin/python3
+
+def main():
+	print("Hello! Python")
+	welcome()
+
+def welcome():
+	print("Welcome to the world of Python")
+
+if __name__ == "__main__": main()