old_contents: # -*- coding: utf-8 -*-
  
  import unittest
  
  from opoona.config import NotFoundException
  
  class TestNotFoundException(unittest.TestCase):
      def test_init(self):
          exception = NotFoundException('XXX/config_path')
          self.assertEqual(exception.config_path, 'XXX/config_path')
  
      def test_str(self):
          exception = NotFoundException('XXX/config_path')
          expect    = "XXX/config_path is required\nTry to exec `opoona setup`"
          self.assertEqual(str(exception), expect)
  
new_contents: # -*- coding: utf-8 -*-
  
  import unittest
  
  from opoona.config import NotFoundException
  
  class TestNotFoundException(unittest.TestCase):
      def test_init(self):
          exception = NotFoundException('XXX/config_path')
          self.assertEqual(exception.config_path, 'XXX/config_path')
  
      def test_str(self):
          exception = NotFoundException('XXX/config_path')
          expect    = "XXX/config_path is required\ntry to exec `opoona setup`"
          self.assertEqual(str(exception), expect)
  
subject: fix message text