Python allows users to define their functions which can be used just like any other built-in or library function. In this article, I’ll show you some examples of functions in Python.
What are the Functions in Python?
There are two basic reasons why functions are useful when programming. They help by breaking programs down into smaller manageable chunks, also taking advantage of code reusability. Functions take an input value and return an output value where the function was called.
Functions do not necessarily need parameters and arguments when performing anything, nor do they need to return a value. With just a return that is not followed by a variable will return nothing when executed.
Reuse allows an easy way to run the same sequence of code multiple times compared to copying the same lines of code in multiple sections of the program.
When using functions in python, it is important to note that changes to variables passed to the function will remain the same value as they were before the function after the function returned. To combat this problem, global variables can be used or return the necessary value from the function.
Examples of Functions in Python
Now, in this section, I will take you through some basic examples of functions in Python which will include:
- A Python function to print factorial of a number
- A Python function to print the greatest number
- 5 basic functions for calculations
I hope you liked this article on examples of functions in Python. Feel free to ask your valuable questions in the comments section below.