THIS is my PYTHON program :

from random import randint

def randlist():

ans = ()

for i in range(6):

ans.append(randint(1,59))

#print(ans)

return ans

def comparelist(x, y):

z = list(set(x).union(set(y)))

if len(z) is len(x):

return True

return False

l = input("Enter six numbers for the lottery:")

l = l.split()

try:

for a in range(0,len(l)):

l[a] = int(l[a])

except:

print("Enter integer values")

l.sort()

l = list(set(l))

if(len(l)!=6):

print("Invalid input")

exit()

for a in range(6):

if(l[a]59):

print("Invalid input")

exit()

for i in range(1,9001):

rlist1 = randlist()

rlist1.sort()

if comparelist(l,rlist1):

cost = (i-1)*3+1

print("On week "+i+", numbers are:"+','.join(rlist1))

print("You are a MILLION DOLLAR winner!!")

print("Your total return is $"+str(1000000-cost))

print("Total amount spent is $"+str(cost))

exit()

rlist2 = randlist()

rlist2.sort()

if comparelist(l,rlist2):

cost = (i-1)*3+2

print("On week "+i+", numbers are:"+','.join(rlist2))

print("You are a MILLION DOLLAR winner!!")

print("Your total return is $"+str(1000000-cost))

print("Total amount spent is $"+str(cost))

exit()

rlist3 = randlist()

rlist3.sort()

if comparelist(l,rlist3):

cost = (i-1)*3+3

print("On week "+i+", numbers are:"+','.join(rlist3))

print("You are a MILLION DOLLAR winner!!")

print("Your total return is $"+str(1000000-cost))

print("Total amount spent is $"+str(cost))

exit()

cost = 9000*3

print("Total amount spent is $"+str(cost))

This is my error:

Please fix the error and devlop the program following requirements:

Design, Style and proper Documentation