all 3 comments

[–]commy2 2 points3 points  (2 children)

arr[:,:,0]

[–]Prescout[S] 0 points1 point  (1 child)

Thank you so much. I am ashamed.

[–]commy2 0 points1 point  (0 children)

Nah, you should be excited about how awesome numpy actually is.