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-rw-r--r--Lib/curses/wrapper.py50
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diff --git a/Lib/curses/wrapper.py b/Lib/curses/wrapper.py
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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 curses
-
-def wrapper(func, *args, **kwds):
- """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().
- """
-
- 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
-
- return func(stdscr, *args, **kwds)
- finally:
- # Set everything back to normal
- if 'stdscr' in locals():
- stdscr.keypad(0)
- curses.echo()
- curses.nocbreak()
- curses.endwin()