old_contents: # -*- coding: utf-8 -*-
  
  import redis
  
  class RedisQueue(object):
      """Simple Queue with Redis Backend"""
      def __init__(self, name, namespace='queue', **redis_kwargs):
          """The default connection parameters are: host='localhost', port=6379, db=0"""
          self.db = redis.Redis(**redis_kwargs)
          self.key = '%s:%s' %(namespace, name)
  
      def qsize(self):
          """Return the approximate size of the queue."""
          return self.db.llen(self.key)
  
      def empty(self):
          """Return True if the queue is empty, False otherwise."""
          return self.qsize() == 0
  
      def put(self, item):
          """Put item into the queue."""
          self.db.rpush(self.key, item)
  
      def get(self, block=True, timeout=None):
          """Remove and return an item from the queue.
  
          If optional args block is true and timeout is None (the default), block
          if necessary until an item is available."""
          if block:
              item = self.db.blpop(self.key, timeout=timeout)
          else:
              item = self.db.lpop(self.key)
  
          if item:
              item = item[1]
          return item
  
      def get_nowait(self):
          """Equivalent to get(False)."""
          return self.get(False)
  
      def __iter__(self):
          return self
  
      def next(self):
          item = self.get(False)
          if item is None:
              raise StopIteration
          return item
  
new_contents: # -*- coding: utf-8 -*-
  
  import redis
  
  class RedisQueue(object):
      """Simple Queue with Redis Backend"""
      def __init__(self, name, namespace='queue', **redis_kwargs):
          """The default connection parameters are: host='localhost', port=6379, db=0"""
          self.db = redis.Redis(**redis_kwargs)
          self.key = '%s:%s' %(namespace, name)
  
      def qsize(self):
          """Return the approximate size of the queue."""
          return self.db.llen(self.key)
  
      def empty(self):
          """Return True if the queue is empty, False otherwise."""
          return self.qsize() == 0
  
      def put(self, item):
          """Put item into the queue."""
          self.db.rpush(self.key, item)
  
      def get(self, block=True, timeout=None):
          """Remove and return an item from the queue.
  
          If optional args block is true and timeout is None (the default), block
          if necessary until an item is available."""
          if block:
              item = self.db.blpop(self.key, timeout=timeout)
              if item:
                  item = item[1]
          else:
              item = self.db.lpop(self.key)
  
          return item
  
      def get_nowait(self):
          """Equivalent to get(False)."""
          return self.get(False)
  
      def __iter__(self):
          return self
  
      def next(self):
          item = self.get(False)
          if item is None:
              raise StopIteration
          return item
  
subject: Fix a bug in Redis queue