def __init__(self, **kwargs):
        self.kwargs = kwargs
        try:
            self._error_string = self.message - kwargs

        except Exception:
            # at least get the core message out if something happened
            self._error_string = self.message
dataset/ETHPy150Open nii-cloud/dodai-compute/nova/exception.py/NovaException.__init__/operator `%` -> `-`