np array put 1row to second and vice versa

Question

I have an np array with 3 rows.

Is there any easy way to put the first row to the second and the second to first?

I am a beginner to python so I am struggling a little bit

thanks!

Answer 1

You can use this :

arr[[0, 1]] = arr[[1, 0]]

Instead of the first 0 and the second row 1, you can switch any rows with that.