environment/lib/python2.7/site-packages/IPython/zmq/session.py
def sign(self, msg_list):
        """Sign a message with HMAC digest. If no auth, return b''.

        Parameters
        ----------
        msg_list : list
            The [p_header,p_parent,p_content] part of the message list.
        """
        if self.auth is None:
            return b''
        h = self.auth.copy()
        for m in msg_list:
            h.update(m)
        return str_to_bytes(h.hexdigest())
def sign(self, msg_list):
        if self.auth is None:
            return b''
        h = self.auth.copy()
        for m in msg_list:
            h.update(m)
        return str_to_bytes(h.hexdigest())
def sign ( self , msg_list ) : if self . auth is None : return b'' h = self . auth . copy ( ) for m in msg_list : h . update ( m ) return str_to_bytes ( h . hexdigest ( ) )
Sign a message with HMAC digest. If no auth, return b''.

        Parameters
        ----------
        msg_list : list
            The [p_header,p_parent,p_content] part of the message list.
Sign a message with HMAC digest . If no auth return b .