code: def s3_cache_timeout(self):
          
          value = self.get(property_name='s3_cache_timeout',
                           environment_variable='PIP_ACCEL_S3_TIMEOUT',
                           configuration_option='s3-timeout')
          try:
              n = int(value)
              if n >= 0:
                  return n
          except:
              return 60
docs: The socket timeout in seconds for connections to Amazon S3 (an integer).
  
          This value is injected into Boto's configuration to override the
          default socket timeout used for connections to Amazon S3.
  
          - Environment variable: ``$PIP_ACCEL_S3_TIMEOUT``
          - Configuration option: ``s3-timeout``
          - Default: ``60`` (`Boto's default`_)
  
          .. _Boto's default: http://boto.readthedocs.org/en/latest/boto_config_tut.html