old_contents: import functools
  import logging
  
  import redis
  
  import config
  
  
  # Default options
  
  redis_opts = {
      'host': 'localhost',
      'port': 6379,
      'db': 0,
      'password': None
  }
  redis_conn = None
  cache_prefix = None
  
  
  def init():
      global redis_conn, cache_prefix
      cfg = config.load()
      cache = cfg.cache
      if not cache:
          return
      logging.info('Enabling storage cache on Redis')
      if not isinstance(cache, dict):
          cache = {}
      for k, v in cache.iteritems():
          redis_opts[k] = v
      logging.info('Redis config: {0}'.format(redis_opts))
      redis_conn = redis.StrictRedis(host=redis_opts['host'],
                                     port=int(redis_opts['port']),
                                     db=int(redis_opts['db']),
                                     password=redis_opts['password'])
      cache_prefix = 'cache_path:{0}'.format(cfg.get('storage_path', '/'))
  
  
  def cache_key(key):
      return cache_prefix + key
  
  
  def put(f):
      @functools.wraps(f)
      def wrapper(*args):
          content = args[-1]
          key = args[-2]
          key = cache_key(key)
          redis_conn.set(key, content)
          return f(*args)
      if redis_conn is None:
          return f
      return wrapper
  
  
  def get(f):
      @functools.wraps(f)
      def wrapper(*args):
          key = args[-1]
          key = cache_key(key)
          content = redis_conn.get(key)
          if content is not None:
              return content
          # Refresh cache
          content = f(*args)
          redis_conn.set(key, content)
          return content
      if redis_conn is None:
          return f
      return wrapper
  
  
  def remove(f):
      @functools.wraps(f)
      def wrapper(*args):
          key = args[-1]
          key = cache_key(key)
          redis_conn.delete(key)
          return f(*args)
      if redis_conn is None:
          return f
      return wrapper
  
  
  init()
  
new_contents: import functools
  import logging
  
  import redis
  
  import config
  
  
  # Default options
  
  redis_opts = {
      'host': 'localhost',
      'port': 6379,
      'db': 0,
      'password': None
  }
  redis_conn = None
  cache_prefix = None
  
  
  def init():
      global redis_conn, cache_prefix
      cfg = config.load()
      cache = cfg.cache
      if not cache:
          return
      logging.info('Enabling storage cache on Redis')
      if not isinstance(cache, dict):
          cache = {}
      for k, v in cache.iteritems():
          redis_opts[k] = v
      logging.info('Redis config: {0}'.format(redis_opts))
      redis_conn = redis.StrictRedis(host=redis_opts['host'],
                                     port=int(redis_opts['port']),
                                     db=int(redis_opts['db']),
                                     password=redis_opts['password'])
      cache_prefix = 'cache_path:{0}'.format(cfg.get('storage_path', '/'))
  
  
  init()
  
subject: Remove unneeded lru specific helper methods