In this #python #programming #tutorial I discuss how to read and write to a file using Python, showing you how I could create a math worksheet in the process. I then show you how to create and import your own packages before moving on to lambda functions. While covering lambda functions I show you how I can create a lambda function, assign it to a variable and use lambda functions with map, filter, and reduce, discussing the role of the accumulator and item in a function used with reduce.