Functions act as placeholders for the data they output. Basically, you can assign the output of a function to a variable, just like any normal data.The core concept of this lesson is to learn how to call a function and assign the return value to a variable. Experience frequent and ongoing assessment and feedback throughout each quarter. You have to use the global variable trick, or accept use save-as-a-promise trick. FreeCodeCamp offers a curriculum and in this video we cover their lesson called Assignment with a Returned Value. Question: The purpose of this assignment is to practice manipulating files in Python. We can take the return value of a function and assign it to a variable. Assume we have pre-defined a function sum which adds two numbers together. Students returning to school following an extended absence need support as they integrate back into classes and the social environment of school.