I also sometimes consciously dislike things because of annoying ads.
But it doesn’t matter. The overall result is that now you’re aware of that brand, you have a place for it in memory. After time passes it will be The One I’ve Heard Of unless you’re dedicated to remembering to avoid it. There’s something called the Mere Exposure Effect - it mostly works and they know it. :(



If you actually just download a .py file, you need to run it with python. Like in the example you linked, something like
(and if that’s the case, you might need to add a line at the top of the file, telling it where the interpreter is. But probably you actually want the following)
To install, you use the python installer program, pip. Something like
Before you do either, you need to install python and pip. I don’t know exactly (look for correct package names), but you need to run something like
sudo apt install python3 pip