core.py 文件源码

def __setattr__(self, attr, value):
        super(MaskedArray, self).__setattr__(attr, value)
        if attr == 'dtype' and self._mask is not nomask:
            self._mask = self._mask.view(make_mask_descr(value), ndarray)
            # Try to reset the shape of the mask (if we don't have a void)
            # This raises a ValueError if the dtype change won't work
            try:
                self._mask.shape = self.shape
            except (AttributeError, TypeError):
                pass