cf.Data.__len__

Data.__len__()

The built-in function len

x.__len__() <==> len(x)

Examples

>>> len(cf.Data([1, 2, 3]))
3

>>> len(cf.Data([[1, 2, 3]]))
1

>>> len(cf.Data([[1, 2, 3], [4, 5, 6]])
2

>>> len(cf.Data(1))
TypeError: len() of scalar Data