8. Functions and Modules¶
8.1. Introduction¶
In computer programming, functions are a way to bundle multiple lines of code together to run as one block of code. Many functions accept input, called arguments, and produce output. Python has many built-in functions such as type(), len() and pow(). In this chapter you will learn how to create user-defined functions in Python.
By the end of this chapter you will be able to:
Call functions in Python
Import functions into Python scripts
Create user-defined functions
Create functions with default arguments
Utilize functions with positional and keyword arguments
Write reusable code for other problem solvers to use