old_contents: import urllib3
  
  from riakcached import exceptions
  
  
  class Pool(object):
      """
      """
      __slots__ = ["timeout", "url"]
  
      def __init__(self, base_url="http://127.0.0.1:8098", timeout=2, auto_connect=True):
          """
          """
          self.url = base_url
          self.timeout = timeout
          if auto_connect:
              self.connect()
  
      def connect(self):
          """
          """
          raise NotImplementedError("You must not use %s directly" % self.__class__.__name__)
  
      def close(self):
          """
          """
          raise NotImplementedError("You must not use %s directly" % self.__class__.__name__)
  
      def request(self, method, url, body=None, headers=None):
          """
          """
          raise NotImplementedError("You must not use %s directly" % self.__class__.__name__)
  
  
  class Urllib3Pool(Pool):
      """
      """
      __slots__ = ["pool"]
  
      def connect(self):
          """
          """
          self.pool = urllib3.connection_from_url(self.url)
  
      def close(self):
          """
          """
          if self.pool:
              self.pool.close()
  
      def request(self, method, url, body=None, headers=None):
          """
          """
          try:
              response = self.pool.urlopen(
                  method=method,
                  url=url,
                  body=body,
                  headers=headers,
                  timeout=self.timeout,
                  redirect=False,
              )
              return response.status, response.data, response.getheaders()
          except urllib3.exceptions.TimeoutError, e:
              raise exceptions.RiakcachedTimeout(e.message)
          except urllib3.exceptions.HTTPError, e:
              raise exceptions.RiakcachedConnectionError(e.message)
          return None, None, None
  
new_contents: import urllib3
  
  from riakcached import exceptions
  
  
  class Pool(object):
      """
      """
      __slots__ = ["timeout", "url"]
  
      def __init__(self, base_url="http://127.0.0.1:8098", timeout=2, auto_connect=True):
          """
          """
          self.url = base_url
          self.timeout = timeout
          if auto_connect:
              self.connect()
  
      def connect(self):
          """
          """
          raise NotImplementedError("You must not use %s directly" % self.__class__.__name__)
  
      def close(self):
          """
          """
          raise NotImplementedError("You must not use %s directly" % self.__class__.__name__)
  
      def request(self, method, url, body=None, headers=None):
          """
          """
          raise NotImplementedError("You must not use %s directly" % self.__class__.__name__)
  
  
  class Urllib3Pool(Pool):
      """
      """
      __slots__ = ["pool"]
  
      def connect(self):
          """
          """
          self.pool = urllib3.connection_from_url(self.url)
  
      def close(self):
          """
          """
          if self.pool:
              self.pool.close()
  
      def request(self, method, url, body=None, headers=None):
          """
          """
          try:
              response = self.pool.urlopen(
                  method=method,
                  url=url,
                  body=body,
                  headers=headers,
                  timeout=self.timeout,
                  redirect=False,
              )
              return response.status, response.data, response.getheaders()
          except urllib3.exceptions.TimeoutError, e:
              raise exceptions.RiakcachedTimeout(e.message)
          except urllib3.exceptions.HTTPError, e:
              raise exceptions.RiakcachedConnectionError(e.message)
  
subject: remove usless return