#!/usr/bin/env python
from Xlib.display import Display
from Xlib import X
from Xlib.protocol import event
import time

display = Display()
focus = display.get_input_focus().focus

keycode = 1
state = 0

keyevt = event.KeyPress(
    detail=keycode,
    time=X.CurrentTime,
    root=display.screen().root,
    window=focus,
    child=X.NONE,
    root_x=1,
    root_y=1,
    event_x=1,
    event_y=1,
    state=state,
    same_screen=1
    )
focus.send_event(keyevt)