1  import unittest
       2  from test.support.import_helper import import_fresh_module
       3  from test.support.warnings_helper import check_warnings
       4  
       5  with check_warnings(("", DeprecationWarning)):
       6      load_tests = import_fresh_module('lib2to3.tests', fresh=['lib2to3']).load_tests
       7  
       8  if __name__ == '__main__':
       9      unittest.main()