Strange behavior in Python for loop with range and a generator expression
I've looked through the documentation and I'm still confused about I'm experiencing some unexpected behavior in a for loop when using a generator expression in Python 3.9. I have a list of numbers that I want to process, but my loop seems to be skipping over some elements. Here's the relevant code snippet: ```python numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] result = [] for num in (x for x in numbers if x % 2 == 0): print(f'Processing: {num}') if num == 6: numbers.remove(num) # Trying to remove an element in the loop result.append(num) print('Final result:', result) print('Remaining numbers:', numbers) ``` I intended to process only even numbers and remove `6` if encountered. However, when I run this, it prints `Processing: 2`, `Processing: 4`, and `Processing: 6`, but then it skips `8` and goes directly to `10`, resulting in `Final result: [2, 4, 6]` and `Remaining numbers: [1, 2, 3, 4, 5, 7, 8, 9, 10]`. I expected `8` to be processed but it seems like it's being skipped. I read that modifying a list while iterating over it can lead to such issues, but I'm using a generator expression instead. Is this behavior due to the way generators handle the underlying list? How can I avoid this skipping behavior without causing any performance optimization? Any insights would be appreciated!