One of most powerful and advanced features of “Object-Oriented Programming” in python, is “Decorators”. But before you dive in to the decorator’s topic, you need to know somethings in advance. For C++ and Java programmers, functions inside of functions is weird and unfamiliar, but python supports creating functions inside of functions and a function can have an argument which is a function itself! Please don’t mess it up with recursion. In recursion (which is supported by C++ and java as well), same function is called inside of definition of function, but in python you can define a new function inside a function (like a wrapper function), and return of your function could be a function. This is so beautiful feature and makes a great tool for professional programmers to write codes.
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