import random

number1 = random.randint(1, 40)
number2 = random.randint(1, 40)
number3 = random.randint(1, 40)
number4 = random.randint(1, 40)
number5 = random.randint(1, 40)
number6 = random.randint(1, 40)

if number2 == number1:
    number2 = random.randint(1, 40)
elif number3 == number2 or number3 == number1:
    number3 = random.randint(1, 40)
elif number4 == number3 or number4 == number2 or number4 == number1:
    number4 = random.randint(1, 40)
elif number5 == number4 or number5 == number3 or number5 == number2 or number5 == number1:
    number5 = random.randint(1, 40)
elif number6 == number5 or number6 == number4 or number6 == number3 or number6 == number2 or number6 == number1:
    number5 = random.randint(1, 40)
else:
    print('Lottery numbers: ', number1 , number2 , number3 , number4 , number5 , number6)