old_contents: import pep8
  
  
  def test_pep8_comformance():
      ''' Test that the code conforms to PEP8 '''
      pep8style = pep8.StyleGuide(config_file='.pep8')
      result = pep8style.check_files(['tsstats.py', 'tests/test_config.py', 'tests/test_general.py', 'tests/test_style.py'])
      assert result.total_errors == 0
  
new_contents: import pep8
  from glob import glob
  
  
  def test_pep8_comformance():
      ''' Test that the code conforms to PEP8 '''
      pep8style = pep8.StyleGuide(config_file='.pep8')
      files = glob('tests/*.py')
      files.append('tsstats.py')
      result = pep8style.check_files(files)
      assert result.total_errors == 0
  
subject: use glob to select files for stylecheck