def text(self):
        """Get indent text as \t or string of spaces
        """
        if self.useTabs:
            return '\t'
        else:
            return ' ' * self.width
def trapped_signals(cls, new_signal_handler):
        """A contextmanager which temporarily overrides signal handling.

        NB: This method calls signal.signal(), which will crash if not called from the main thread!
        """
        previous_signal_handler = cls.reset_signal_handler(new_signal_handler)
        try:
            yield
        finally:
            cls.reset_signal_handler(previous_signal_handler)