code: def gen_etag():
      
  
      my_salt = gen_uuid()
      if six.PY2:
          my_salt = my_salt.decode('utf-8')
      elif six.PY3:
          my_salt = my_salt.encode('utf-8')
      md5 = hashlib.md5()
      md5.update(my_salt)
      return md5.hexdigest()
docs: Generate random etag based on MD5.