Why does removing elements from a list in a for loop in Python skip values?

I'm new to Python and I'm trying to write a script that removes all even numbers from a list. My logic was to loop through the list and, if a number is divisible by 2, remove it.

Here is my code:

numbers = [1, 2, 4, 5, 6, 8, 9] for num in numbers: if num % 2 == 0: numbers.remove(num) print(numbers) # Ожидаемый результат: [1, 5, 9]

Problem:

Instead of the expected [1, 5, 9], I get [1, 4, 5, 8, 9]. For some reason, the program "skips" some numbers (for example, 4 and 8), even though they are clearly even.

What I've tried:

I tested the if num % 2 == 0: condition separately; it works correctly.

I noticed that if the list doesn't contain any consecutive even numbers, the code sometimes works, but I'm not sure.

Can you please tell me why the iteration is behaving so strangely and how to properly remove elements from the list without crashing the loop? Thanks in advance!