text: from unittest2.case import TestCase
  import pep8
  import os
  
  __all__ = ['TestCodeFormat']
  
  
  class TestCodeFormat(TestCase):
  
      def test_pep8_conformance(self):
          style = pep8.StyleGuide(exclude=['_thrift'], max_line_length=140)
          result = style.check_files(['zipkin'])
          self.assertEqual(result.total_errors, 0, "Found style errors")
  