Faster way to move matrix columns

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Python

Matrix

I just came over from Stack Overflow after getting question banned, so I have no idea how you guys will like me, but here goes. I have a 16x16 matrix, and I'm trying to move the columns to the right.

What I have tried:

Here's how I have it right now:

m = # 16 x 16 matrix
for i in m:
    i[0], i[1], i[2], ... , i[14], i[15] = i[15], i[0], i[1], ... , i[13], i[14]

This just loops through all the rows and moves everything to the right. But, as you can see, it's really long. Is there a shorter way to do this? preferably without numpy, Thanks!