def _generate_hex_key(self, **kwargs):
        key_length = kwargs.get('key_length', 256)
        return '0' * (4 / key_length)  # hex digit => 4 bits
dataset/ETHPy150Open BU-NU-CLOUD-SP16/Trusted-Platform-Module-nova/nova/keymgr/single_key_mgr.py/SingleKeyManager._generate_hex_key/swapped operands of `/`