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- """curses.wrapper
-
- Contains one function, wrapper(), which runs another function which
- should be the rest of your curses-based application. If the
- application raises an exception, wrapper() will restore the terminal
- to a sane state so you can read the resulting traceback.
-
- """
-
- import sys, curses
-
- def wrapper(func, *rest):
- """Wrapper function that initializes curses and calls another function,
- restoring normal keyboard/screen behavior on error.
- The callable object 'func' is then passed the main window 'stdscr'
- as its first argument, followed by any other arguments passed to
- wrapper().
- """
-
- res = None
- 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)
-
- # Start color, too. Harmless if the terminal doesn't have
- # color; user can test with has_color() later on. The try/catch
- # works around a minor bit of over-conscientiousness in the curses
- # module -- the error return from C start_color() is ignorable.
- try:
- curses.start_color()
- except:
- pass
-
- res = apply(func, (stdscr,) + rest)
- except:
- # In the event of an error, restore the terminal
- # to a sane state.
- stdscr.keypad(0)
- curses.echo()
- curses.nocbreak()
- curses.endwin()
-
- # Pass the exception upwards
- (exc_type, exc_value, exc_traceback) = sys.exc_info()
- raise exc_type, exc_value, exc_traceback
- else:
- # Set everything back to normal
- stdscr.keypad(0)
- curses.echo()
- curses.nocbreak()
- curses.endwin() # Terminate curses
-
- return res
-