Python-сообщество

#!/usr/bin/env python
#coding:utf-8
import curses, traceback


def main(stdscr):
    # Frame the interface area at fixed VT100 size
    global screen
    screen = stdscr.subwin(23, 79, 0, 0)
    screen.box()
    screen.hline(2, 1, curses.ACS_HLINE, 77)
    screen.refresh()

    # Define the topbar menus
    file_menu = ("File", "file_func()")
    proxy_menu = ("Proxy Mode", "proxy_func()")
    doit_menu = ("Do It!", "doit_func()")
    help_menu = ("Help", "help_func()")
    exit_menu = ("Exit", "EXIT")
    # Add the topbar menus to screen object
    topbar_menu((file_menu, proxy_menu, doit_menu, help_menu, exit_menu))

    # Enter the topbar menu loop
    while topbar_key_handler():
        draw_dict()
        


if __name__=='__main__':
  try:
      # Initialize curses
      stdscr=curses.initscr()
      # Turn off echoing of keys, and enter cbreak mode,
      # where no buffering is performed on keyboard input
      curses.noecho()
      curses.cbreak()

      # In keypad mode, escape sequences for special keys
      # (like the cursor keys) will be interpreted and
      # a special value like curses.KEY_LEFT will be returned
      stdscr.keypad(1)
      main(stdscr)                    # Enter the main loop
      # Set everything back to normal
      stdscr.keypad(0)
      curses.echo()
      curses.nocbreak()
      curses.endwin()                 # Terminate curses
  except:
      # In event of error, restore terminal to sane state.
      stdscr.keypad(0)
      curses.echo()
      curses.nocbreak()
      curses.endwin()
      traceback.print_exc()           # Print the exception

Traceback (most recent call last):
  File "./cursest.py", line 42, in <module>
    main(stdscr)                    # Enter the main loop
  File "./cursest.py", line 21, in main
    topbar_menu((file_menu, proxy_menu, doit_menu, help_menu, exit_menu))
NameError: global name 'topbar_menu' is not defined