Pulseaudio push-to-talk

from libinput import ContextType, EventType, KeyState, LibInput

seat = 'seat0'

li = LibInput(context_type=ContextType.UDEV)
li.assign_seat(seat)

for event in li.events:
    if event.type == EventType.KEYBOARD_KEY:
        keycode = event.key
        ks = event.key_state
        key_press = ks is KeyState.PRESSED
        print("Code: {} | State: {}".format(keycode, "↓" if key_press else "↑"))