wheel.py

from collections import deque
import curses
from random import randrange, shuffle
from time import sleep


def display(stdscr, state):
    stdscr.addstr(0, 0, ' '.join(state))
    stdscr.addstr(1, 0, '  ' * (len(state) // 2) + '\u2191')


if __name__ == '__main__':
    stdscr = curses.initscr()
    curses.start_color()
    curses.noecho()
    curses.cbreak()

    wheel = deque(map(str, range(10)))
    shuffle(wheel)

    try:
        for x in range(randrange(10, 20)):
            display(stdscr, wheel)
            stdscr.refresh()
            sleep(1)
            wheel.rotate(1)
    finally:
        curses.nocbreak()
        curses.echo()
        curses.endwin()