old_contents: """
  (Future home of) Tests for program_enrollments grade-reading Python API.
  
  Currently, we do not directly unit test `load_program_course_grades`.
  This is okay for now because it is used in
  `rest_api.v1.views` and is thus tested through `rest_api.v1.tests.test_views`.
  Eventually it would be good to directly test the Python API function and just use
  mocks in the view tests.
  This file serves as a placeholder and reminder to do that the next time there
  is development on the program_enrollments grades API.
  """
  
  
new_contents: """
  (Future home of) Tests for program_enrollments grade-reading Python API.
  
  Currently, we do not directly unit test `load_program_course_grades`.
  This is okay for now because it is used in
  `rest_api.v1.views` and is thus tested through `rest_api.v1.tests.test_views`.
  Eventually it would be good to directly test the Python API function and just use
  mocks in the view tests.
  This file serves as a placeholder and reminder to do that the next time there
  is development on the program_enrollments grades API.
  """
  
subject: Fix other pep8 violations.