code: def parse_redis_url(url):
      
      warnings.warn(
          "Use redis.StrictRedis.from_url instead", DeprecationWarning,
          stacklevel=2)
      parsed = urllib.parse.urlsplit(url)
      return {
          'host': parsed.hostname,
          'port': parsed.port,
          'db': int(parsed.path.replace('/', '')),
      }
docs: Given a url like redis://localhost:6379/0, return a dict with host, port,
      and db members.