old_contents: import pytest
  import sys
  if '-nogui' not in sys.argv:
      sys.argv.append('-nogui')
  
  pkg = 'examples/HHTut/'
  
  @pytest.fixture()
  def pkg_setup():
      sys.path.append(pkg)
      yield True
      sys.path.remove(pkg)
  
  
  class TestHHTut():
      def test_run(self, pkg_setup):
          import HHTut_run
  
      def test_export(self, pkg_setup):
          import HHTut_export
  
new_contents: import pytest
  import sys
  if '-nogui' not in sys.argv:
      sys.argv.append('-nogui')
  
  pkg = 'examples/HHTut/'
  
  @pytest.fixture()
  def pkg_setup():
      sys.path.append(pkg)
      yield True
      sys.path.remove(pkg)
  
  
  class TestHHTut():
      def test_run(self, pkg_setup):
          import HHTut_run
  
      #def test_export(self, pkg_setup):
      #    import HHTut_export
  
subject: check if tests pass if remove export