I think this kind of reference is useful just to remember what can be done "out of the box" with the language, especially for polyglot developers. I've definit

I think this kind of reference is useful just to remember what can be done "out of the box" with the language, especially for polyglot developers. I've definitely written my own Python hex string -> binary data conversion function, before I knew some of these tricks. If you spend part of your time working in JavaScript or PHP, it's easy to forget that you don't have to reinvent the wheel with Python.