Indexing [::-1] to Reverse ALL 2D Array Rows, ALL 3D, 4D Array Columns & Rows Python

[Jeremy7]

Thanks for your help. I got the following answers with some help from Stack Overflow and another source:
[:,::-1] reverses 2D array rows, [:,::-1,:] reverses 3D array columns, [:,:,::-1] reverses 3D array rows, [:,:,::-1,:] reverses 4D array columns, [:,:,:,::-1] reverses 4D array rows

I think you can achieve what you're looking for by using raw slice objects.

>>> import numpy as np
>>> randomArray = np.round(10*np.random.rand(5,4))
>>> sortedArray = np.sort(randomArray, axis=1)
>>> sortedArray.shape
(5, 4)
>>> axes = len(sortedArray.shape)
>>> slices = tuple(slice(None, None, -1) for _ in range(axes))
>>> reversedArr = sortedArray[slices]
>>> sortedArray
array([[4., 6., 6., 7.],
       [3., 6., 7., 8.],
       [1., 8., 9., 9.],
       [7., 8., 8., 9.],
       [0., 6., 7., 8.]])
>>> reversedArr
array([[8., 7., 6., 0.],
       [9., 8., 8., 7.],
       [9., 9., 8., 1.],
       [8., 7., 6., 3.],
       [7., 6., 6., 4.]])

Thanks, nilamo!