Explain decorators in python
Decorator : Decorator is the name used for a software design pattern. It is used to alter functions and methods. Decorators work as wrappers, modifying the behavior of the code before and after a target function execution, without the need to modify the function itself, augmenting the original functionality. Basically, a decorator takes in a function, adds some functionality and returns it. Multiple decorators can be chained in Python. For ex : def addOne(myFun): def addOneInside(*args,**kwrgs): return myFun(*args,**kwrgs) + 1 return addOneInside @addOne def oldFun( x = 1 ): return x print oldFun(564) # prints 565