anan curses example

import curses
import atexit
from datetime import datetime
import time
from threading import Timer

stdscr = None
current_time = datetime.now()
do_exit = False

def init_curses():
    global stdscr
    stdscr = curses.initscr()
    curses.start_color()
    curses.noecho()
    curses.cbreak()
    stdscr.nodelay(1)
    atexit.register(exit_curses)
    return

def exit_curses():
    curses.echo()
    curses.nocbreak()
    curses.endwin()
    return

def update_time():
    global current_time
    global stdscr
    global do_exit
    current_time = datetime.now().time()
    stdscr.addstr(1,1, current_time.isoformat(), curses.color_pair(0))
    if do_exit == False:
        Timer(1, update_time, ()).start()

init_curses()

Timer(1, update_time, ()).start()

while do_exit == False:
    key = stdscr.getch()

    if key == ord('q'):
        do_exit = True
    elif key == ord('t'):
        stdscr.addstr(0,0,"TEE ON PAINETTU!", curses.color_pair(0))
    elif key == ord('w'):
        stdscr.addstr(0,0,"TUPLAWEE ON PAINETTUD!", curses.color_pair(0))

exit_curses()