python pygame animation

Question

so about the animation
i got all animation images stored in a list
and i'm playing it on a loop like

state = 0
walk[state]
state += 1
if state == 5:
state = 0

so, i'm wonder if there's any other way i can use it
like when i don't have to use the if statement to make it go back 0

Answer 1

state = 0
walk[state]
state = (state + 1) % 5 # or len(lst) instead of 5