Knowing if a command failed and capturing stderr (which contains stuff like error messages) are not the same thing.

I checked the docs, and I’m a bit confused with one thing. They show that you can capture the stdout of a command into a variabe, but they never show stderr being captured. How would that work?

Here’s a better article: https://flatt.tech/research/posts/batbadbut-you-cant-securely-execute-commands-on-windows/

This. If you want to start coding on your own computer, the Python IDLE is great for beginners (it’s probably inside a package named idle). Just click on ‘File > New’ to start writing a new program and press the F5 key to run it!