functions in this you'll learn to write functionswhich are named blocks of code that are designed to do one specific job when you want to perform particular task that you've defined in functionyou call the name of the function responsible for it if you need to perform that task multiple times throughout your programyou don' need to type all the code for the same task again and againyou just call the function dedicated to handling that taskand the call tells python to run the code inside the function you'll find that using functions makes your programs easier to writereadtestand fix in this you'll also learn ways to pass information to functions you'll learn how to write certain functions whose primary job is to display information and other functions designed to process data and return value or set of values finallyyou'll learn to store functions in separate files called modules to help organize your main program files