Important note: this lesson gives an example of a function named f(). This is a common function name dating back from the early days of programming. However, modern coding practices strongly recommend using descriptive names for functions, and single letter names are not descriptive. So, even though f() works in this video to show a general function, you should get into the habit of naming functions in a more descriptive manner.
This lesson is part of a Real Python video course by Howard Francis.
