>>> import numpy as np
>>> a = [[1,2,3],[4,5,6],[7,8,9]]
>>> b = np.array(a)
>>> b
array([[1, 2, 3],
[4, 5, 6],
[7, 8, 9]])
>>> b.shape
(3, 3)
>>>
the array's shape will give you the number of rows and columns, but not its coordinates nor its cell size.