Noob Alert! Wrong result using loop and if statemnent

[GJG]

Hi there! I'm trying to leave out a specific integer in a list and remove every other number

nr = 9
my_list = [0,5,6,7,6,9,9,1,9]

for i in my_list:
    if i is not nr:
        my_list.remove(i)
print(my_list)

However I get [5, 7, 9, 9, 9] instead of [9,9,9]
What am I doing wrong?