Lab 5 : Find index of (the first) maximum value in array

def setup():
   i = 0
   index = 0
   n = [5,6,23,9,20,10,23,9]
   maxi = n[0]
   while(i<len(n)):
      if(maxi<n[i]):
         maxi = n[i]
         index = i
      i = i+1
   print("Index of maximum = ",index)
 
setup()