Noob Alert! Wrong result using loop and if statemnent

[buran]

So basically there's no point for it..?

yes

nr = 9
numbers = [0,5,6,7,6,9,9,1,9]
for x in numbers[:]:
    if x != nr:
        numbers.remove(x)
print(numbers)

Output:
[9, 9, 9]

by the way - you can try it yourself. don't hesitate to experiment and play with the code.