def purge(self, queue):
        if self.client.watching() not in queue: 
            self.client.watch(queue) 
            ignore = ifilter(lambda q: q!= queue, self.client.watching()) 
            map(self.client.ignore, ignore) 
            count = 0 
            while True: 
                job = self.client.reserve(timeout=1) 
                if job: 
                    job.delete() 
                    count += 1
                else: 
                    break 
            return count
dataset/ETHPy150Open ask/ghettoq/ghettoq/backends/beanstalk.py/BeanstalkBackend.purge/swapped operands of `not in`