code: def robot_files(self):
          '''Return a list of all folders, and test suite files (.txt, .robot)
          '''
          result = []
          for name in os.listdir(self.path):
              fullpath = os.path.join(self.path, name)
              if os.path.isdir(fullpath):
                  result.append(RobotFactory(fullpath, parent=self))
              else:
                  if ((name.endswith(".txt") or name.endswith(".robot")) and
                      (name not in ("__init__.txt", "__init__.robot"))):
  
                      result.append(RobotFactory(fullpath, parent=self))
          return resulf robot_files(self):
          '''Return a list of all folders, and test suite files (.txt, .robot)
          '''
          result = []
          for name in os.listdir(self.path):
              fullpath = os.path.join(self.path, name)
              if os.path.isdir(fullpath):
                  result.append(RobotFactory(fullpath, parent=self))
              else:
                  if ((name.endswith(".txt") or name.endswith(".robot")) and
                      (name not in ("__init__.txt", "__init__.robot"))):
  
                      result.append(RobotFactory(fullpath, parent=self))
          return result
docs: Return a list of all folders, and test suite files (.txt, .robot)