Lab 5 : Find the maximum value in array

def setup():
   i = 0
   n = [5,6,7,9,5,18,4]
   maxi = n[0]
   while(i<len(n)):
      if(maxi<n[i]):
         maxi = n[i]
      i = i+1
   print("Maximum = ",maxi)
 
setup()