code: def get_user_agent_default(pkg_name='cloudaux'):
      
      version = '0.0.1'
      try:
          import pkg_resources
          version = pkg_resources.get_distribution(pkg_name).version
      except pkg_resources.DistributionNotFound:
          pass
      except ImportError:
          pass
  
      return 'cloudaux/%s' % (version)
docs: Get default User Agent String.
  
      Try to import pkg_name to get an accurate version number.
      
      return: string