snake game quit() ^ SyntaxError: invalid syntax

[arti]

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63

import random import curses   s = curses.initscr() curses.curs_set(0) sh , sw = getmaxyx() w = curses.newln(sh, sw, 0, 0) w.keypad(1) w.timeout(100)   snk_x = sw/4 snk_y = sh/2 snake = [     [snk_y, snk_x],     [snk_y,snk_x - 1],     [snk_y, snk_x - 2]   ]   print("here catch up 1")   food = [sh/2, sw/2] w.addch(food[0],food[1], curses.ACS_PI)   key = curses.KEY_RIGHT   while True:     next_key = w.getch()     key = key if next_key == -1 else next_key       if snake[0][0] in [0, sh] or snake[[0][1] in [0, sw] or snake[0] in snake[1:]:         curses.endwin()         quit()       new_head = [snake[0][0],snake[0][1]]       if key == curses.KEY_DOWN:         new_head[0] += 1       if key == curses.KEY_UP:         new_head[0] -= 1       if key == curses.KEY_LEFT:         new_head[0] -= 1       if key == curses.KEY_RIGHT:         new_head[0] += 1       if snake[0] == food:         food = None         while food is None:         nf = [             random.randint(1, sh-1),             random.randint(1, sw-1)         ]           food = nf if nf not in snake else None         w.addch(food[0], food[1], curses.ACS_PI)     else:         tail = snake.pop()         w.addch(tail[0], tail[1], ' ')       w.addch(snake[0][0], snake[0][1], curses.ACS_CKBOARD)

[buran]

please, post full traceback in error tags