如何修复“不支持重定向”？

Question

当我运行蛇游戏项目时，我在蛇游戏项目中出错。此消息显示“不支持重定向”

import random
import curses

s = curses.initscr() 
curses.curs_set(0)
sh, sw = s.getmaxyx()
w = curses.newwin(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]
]

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_RIGHT:
        new_head[0] -= 1
    if key == curses.KEY_UP:
        new_head[0] += 1

    snake.insert(0, new_head)

    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_CXB)