Ubuntu is a free computer system, like Windows or macOS, but it’s built by a community. It’s great for programmers because it’s very flexible and has lots of tools already built-in that help you code.

FYI - This is a Python file (not notebook), I copied most of the contents from a Notebook into a Python file to try a few things & see the differences.

The default interpreter for Python has already been set, but after opening the Python file, you still need to manually select the Python interpreter, or it may take a long time for the default ...