(self, host, port, reason=None)
x.__init__(...) initializes x; see x.__class__.__doc__ for signature
x.__init__(...) initializes x; see x.__class__.__doc__ for signature
x . __init__ ( ... ) initializes x ; see x . __class__ . __doc__ for signature
def __init__(self, host, port, reason=None):
        "x.__init__(...) initializes x; see x.__class__.__doc__ for signature"

        super(unreachable, self).__init__(host, port, reason)
def __init__ ( self , host , port , reason = None ) : super ( unreachable , self ) . __init__ ( host , port , reason )