formatters.py 文件源码

def __new__(cls, *args):
        """
        Class constructor accepting 3 positional arguments.

        :arg cap: parameterized string suitable for curses.tparm()
        :arg normal: terminating sequence for this capability (optional).
        :arg name: name of this terminal capability (optional).
        """
        assert len(args) and len(args) < 4, args
        new = six.text_type.__new__(cls, args[0])
        new._normal = len(args) > 1 and args[1] or u''
        new._name = len(args) > 2 and args[2] or u'<not specified>'
        return new