Ars est celare artem.

There are some useful and elegant python idioms I would like to remember so I write them here:

new_list = [fn(item) for item in a_list
            if condition(item)]

result = ''.join(fn(i) for i in items)

(found in Code Like a Pythonista: Idiomatic Python)

Have you ever thoght about patching an input driver (keyboard, mouse, joypad, ...)?

The answer is uinput and evdev.

The first one is a dummy device being created in /dev/input/uinput that allow you to create a totally new input device with whathever control you want. E.g if you want to have a mouse controlled from a socket or from bluetooth you can! That device will be identical to any other "common" input device.

The other interesting device is event device. Every input device has it's own event device in /dev/input. This allow you to catch those event and make anything you want.

here there's an example.

And here a collection of related links.