$ python decorator_test.py Function calculate_squares being called at 2018-08-23 12:39:02.112904 Took 2.5019338130950928 seconds Dealing with parameters. In the example above, ...

Python decorators are extremely useful, albeit a bit hard to wrap your head around. They enable developers to modify or extend a function or class’s functionalities by wrapping it using a single line ...

If you're unfamiliar with python decorators, you can read this great article In short: python decorator is a function that gets another function as a parameter, and returns a new function. This might ...

The syntax for this in python begin with @ immediately followed by the decorator function name. On the next line, a brand new function definition begins. The result is that the new function will be ...