code: def import_from_str(value):
      
      try:
          parts = value.split('.')
          module_path, class_name = '.'.join(parts[:-1]), parts[-1]
          module = importlib.import_module(module_path)
          return getattr(module, class_name)
      except ImportError as e:
          msg = 'Could not import %s for settings. %s: %s.' % (value, e.__class__.__name__, e)
          raise ImportError(msg)
docs: Attempt to import a class from a string representation.