code: def _get_thintar_prefix(tarname):
      '''
      Make sure thintar temporary name is concurrent and secure.
  
      :param tarname: name of the chosen tarball
      :return: prefixed tarname
      '''
      tfd, tmp_tarname = tempfile.mkstemp(dir=os.path.dirname(tarname), prefix=".thin-",
                                          suffix="." + os.path.basename(tarname).split(".", 1)[-1])
      os.close(tfd)
  
      return tmp_tarnamf _get_thintar_prefix(tarname):
      '''
      Make sure thintar temporary name is concurrent and secure.
  
      :param tarname: name of the chosen tarball
      :return: prefixed tarname
      '''
      tfd, tmp_tarname = tempfile.mkstemp(dir=os.path.dirname(tarname), prefix=".thin-",
                                          suffix="." + os.path.basename(tarname).split(".", 1)[-1])
      os.close(tfd)
  
      return tmp_tarname
docs: Make sure thintar temporary name is concurrent and secure.
  
      :param tarname: name of the chosen tarball
      :return: prefixed tarname