import numpy as np a = np.array(42) b = np.array([1, 2, 3, 4, 5]) c = np.array([[1, 2, 3], [4, 5, 6]]) d = np.array([[[1, 2, 3], [4, 5, 6]], [[1, 2, 3], [4, 5, 6]]]) print(a.ndim) print(b.ndim) print(c.ndim) print(d.ndim)