Reading and writing files is an essential aspect of programming as it allows you to store and retrieve data from files. In this tutorial, we will show you how to read and write files in python using the built-in open() function. You will learn how to open a file, how to read and write the contents of a file, and how to close a file after you're done working with it. Additionally, You will also learn how to use the with statement to automatically close the file after it's done being used, and how to handle exceptions that may arise while working with files.