As the name suggests, these are functions that are written by the user, to aid them in achieving a specific goal. The main use of functions is to help us organize our programs into logical fragments that work together to solve a specific part of our problem.
The syntax of a Python function looks like this:
def function_name( parameter_one, parameter_two, parameter_n ): # Logic goes here return
To define a function, we can use the following steps:
Use the def keyword, followed by the function name.
Add parameters (if any) to the function within the parentheses. End the function definition with a full colon.
Write the logic of the function.
Finally, use the return keyword to return the output of the function. This is optional, and if it is not included, the function automatically returns None.
A user-defined function must have a name. You can give it any name that you like, and it is a good practice to make the name as descriptive of the task that the function achieves...