code: def module_import(module_path):
      
      try:
          # Import whole module path.
          module = __import__(module_path)
  
          # Split into components: ['contour',
          # 'extras','appengine','ndb_persistence'].
          components = module_path.split('.')
  
          # Starting at the second component, set module to a
          # a reference to that component. at the end
          # module with be the last component. In this case:
          # ndb_persistence
          for component in components[1:]:
              module = getattr(module, component)
  
          return module
  
      except ImportError:
          raise BadModulePathError(
              'Unable to find module "%s".' % (module_path,))
docs: Imports the module indicated in name
  
      Args:
          module_path: string representing a module path such as
          'app.config' or 'app.extras.my_module'
      Returns:
          the module matching name of the last component, ie: for
          'app.extras.my_module' it returns a
          reference to my_module
      Raises:
          BadModulePathError if the module is not found