#!/usr/bin/python

import Xlib
import Xlib.ext
import Xlib.keysymdef
import Xlib.display
import Xlib.keysymdef.xf86
import Xlib.ext.xtest

d = Xlib.display.Display()

# other keys in /usr/lib/python*/site-packages/Xlib/keysymdef/xf86.py
symbol = Xlib.keysymdef.xf86.XK_XF86_AudioMute
key = d.keysym_to_keycodes(symbol)[0][0]

Xlib.ext.xtest.fake_input(d, Xlib.X.KeyPress, key)
Xlib.ext.xtest.fake_input(d, Xlib.X.KeyRelease, key)
d.sync()