Doubt

Question

Anyone know answer?

The following code removes all the items from the list?

a = [1, 2, 3, 4, 5]
for n in a:
a.remove(n)
print(a)

Answer is False:
Can you explain how it is?

Answer 1

The loop walks over the list, like element 0, 1, 2... until it's over.

If you erase an element, while you loop over it, the element that was 1 before, will become 0, and element 2 will become 1.

Effectively, you are missing a step each time, because the list moves under your feet like an escalator.

You end up removing only every second element

Answer 2

Thank you Honfu bro 😎