text: # import logging
  
  import redis
  
  from . import AbstractCache
  from . import redis_settings as settings
  
  
  class RedisCache(AbstractCache):
      """This class implements caching interface
      for redis backend"""
  
      def __init__(self, currency_cls, logger_name):
  
          prefs = {"host": settings.REDIS_HOST,
                   "port": settings.REDIS_PORT,
                   "db": settings.REDIS_DB}
          self._connection = redis.StrictRedis(**prefs)
  
      def get(self, key, key_type=None):
          try:
              item = self._connection.get(key)
              return item
          except redis.exceptions.ConnectionError:
              return None
          return None
  
      def put(self, key, value, key_type=None, key_value=None):
          try:
              self._connection.set(key, value)
          except redis.exceptions.ConnectionError:
              pass
  