cfdm.FieldAncillary.has_data

FieldAncillary.has_data()[source]

Whether or not the construct has data.

New in version (cfdm): 1.7.0

See also

data, del_data, get_data, set_data

Returns
bool

True if data have been set, otherwise False.

Examples

>>> f = cfdm.FieldAncillary()
>>> f.set_data([1, 2, 3])
>>> f.has_data()
True
>>> f.get_data()
<Data(3): [1, 2, 3]>
>>> f.data
<Data(3): [1, 2, 3]>
>>> f.del_data()
<Data(3): [1, 2, 3]>
>>> g = f.set_data([4, 5, 6], inplace=False)
>>> g.data
<Data(3): [4, 5, 6]>
>>> f.has_data()
False
>>> print(f.get_data(None))
None
>>> print(f.del_data(None))
None