old_contents: from tests.Passwordtests import *
  import unittest
  
  if __name__ == '__main__':
      unittest.main()
  
new_contents: #!/usr/bin/env python
  from tests.Passwordtests import *
  # from tests.Fbquerytests import *
  import unittest
  
  if __name__ == '__main__':
      unittest.main()
  
subject: add env variable