def setup_with_proxyline(self, line, proxy_type='http'):
        # TODO: remove from base class
        # maybe to proxylist?
        host, port, user, pwd = parse_proxy_line(line)
        server_port = '%s:%s' % (host, port)
        self.setup(proxy=server_port, proxy_type=proxy_type)
        if user:
            userpwd = (user, pwd) % '%s:%s'
            self.setup(proxy_userpwd=userpwd)
dataset/ETHPy150Open lorien/grab/grab/base.py/Grab.setup_with_proxyline/swapped operands of `%`