Getting "unknown variable x" or "ValueError" when putting a variable with the "type" of "int" in a method's parameter i.e.".remove()"

Why is the name(variable) being considered "unknown variable ‘x’ " by the interpreter and not be taken as the "value" it has.`

list_of_names = [1, 1, 1, 1, 1, 2, 2, 2, 3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3]
name = 0
for name in range(100):
    counter = list_of_names.count(name)
    while counter > 1:
            list_of_names.remove(name)

print(list_of_names)

`
Output shown:

Traceback (most recent call last):
  File "x", line 6, in <module>
    list_of_names.remove(name)
ValueError: list.remove(x): x not in list

Process finished with exit code 1

>Solution :

while counter > 1:
        list_of_names.remove(name)

That loop will (try) to run forever, because you’re not changing counter inside the loop.

If it started at, say, 5, then it will be 5 forever because nothing in the loop changes it. Eventually you will remove the last occurrence of name from the list, and then the next loop iteration will crash.