s3transfer/futures.py
def set_exception(self, exception):
        """Sets the exception on the future."""
        if not self.done():
            raise TransferNotDoneError(
                'set_exception can only be called once the transfer is '
                'complete.')
        self._coordinator.set_exception(exception, override=True)
def set_exception(self, exception):
        """Sets the exception on the future."""
        if not self.done():
            raise TransferNotDoneError(
                'set_exception can only be called once the transfer is '
                'complete.')
        self._coordinator.set_exception(exception, override=True)
Sets the exception on the future.