The typical narrative of the mediocre duct tape engineer.

"I want to put something together fast by trial and error, without having to go through actual thinking or understanding. I don't care about details, just give me an example that I can copy, paste and duct-tape with another piece of code, so I can ship my product and charge some idiot a fortune for some spaghetti with meatballs code."

Documentation does not necessarily have to follow the format of a tutorial and can vary in levels of detail. Tutorials on this topic do exist. There, LMGTFY: https://docs.python.org/3/howto/regex.html

How did I find it? Google: regular expression site:python.org