text: import sys
  
  
  def main():
      import subprocess
      process = subprocess.Popen(
          'git status --porcelain'.split(), stderr=subprocess.STDOUT, stdout=subprocess.PIPE)
      output, _ = process.communicate()
      if output:
          if sys.version_info[0] > 2:
              output = output.decode('utf-8')
  
          files = set()
          for line in output.splitlines():
              filename = line[3:]
              files.add(filename.strip())
  
          files.discard('.travis_install_python_deps.sh')
          files.discard('miniconda.sh')
          if files:
              # If there are modifications, show a diff of the modifications and fail the script.
              # (we're mostly interested in modifications to the .c generated files by cython).
              print('Found modifications in git:\n%s ' % (output,))
              print('Files: %s' % (files,))
              print('----------- diff -------------')
              subprocess.call('git diff'.split())
              print('----------- end diff -------------')
              sys.exit(1)
  
  
  if __name__ == '__main__':
      main()
  