cf.Data.fill_value

Data.fill_value

The data array missing data value.

If set to None then the default numpy fill value appropriate to the data array’s data-type will be used.

Deleting this attribute is equivalent to setting it to None, so this attribute is guaranteed to always exist.

Examples:

>>> d.fill_value = 9999.0
>>> d.fill_value
9999.0
>>> del d.fill_value
>>> d.fill_value
None