You're wanting it to stop when the len(list) == 4, right? The easiest
way to change the logic would be to say
while len(list) != 4:
but that could get you into trouble later on. The problem with the
len(list) < 5 expression is that the loop will run "one more time" as
long as len(list) == 4 adding another item to the list giving you one
more than you wanted. If you wanted, you could put your len() check
inside the loop:
# Start an empty list
list = []
while 1:
# Get a random number between 1 & 100
num = random.randint(1,100)
# Make sure there are no duplicates
if num not in list:
# Append each number to the list
list.append(num)
if len(list) == 4:
# Break if we've reached desired length.
break
print list
I hope this gives you some ideas.
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