For the operating system to understand that the file should be read as a Python program, the programmer needs to save the file as a Python file, with the ".py" extension.

This post will show you how to open CSV files in Python using the CSV module. You'll also learn another method + how to write CSV files!

Simply create a new .py file in the same folder as your main Python code. Then “import” that file as you now know how to do, then access the functions from within that module.

If you've read a fair amount of Python code, then you've probably seen this "__init__.py" file pop up quite a few times. It's especially common in larger Python projects. I'm going to breakdown ...