I am trying to understand snake water gun game using matrix and couldn’t understand try and except block of code in it. Please explain(Beginner) /u/FewNectarine623 Python Education

I wrote this in Replit and when I used AI assistant on Replit ,it rectified my code but I didn’t understand the changes.

def snake_water_gun(): choices ={0:"Snake",1:"Water",2:"Gun"} outcome_matrix=[ [0,1,-1], [-1,0,1], [1,-1,0] ] print("Choices : 0 -> Snake,1-> Water , 2-> Gun") try: user_choice = int(input("Enter your choice(0,1,2):")) except ValueError: if user_choice not in [0, 1, 2]: print("Invalid choice! Please select 0, 1, or 2.") return 

I wrote this in Replit and when I used AI assistant on Replit ,it rectified my code but I didn’t understand the changes.

def snake_water_gun(): choices ={0:"Snake",1:"Water",2:"Gun"} outcome_matrix=[ [0,1,-1], [-1,0,1], [1,-1,0] ] print("Choices : 0 -> Snake,1-> Water , 2-> Gun") try: user_choice = int(input("Enter your choice(0,1,2):")) except ValueError: if user_choice not in [0, 1, 2]: print("Invalid choice! Please select 0, 1, or 2.") return