Python while (bool): [closed]

Question

In this case:

swag = True
i = 0

while swag:
    i=i+1
    print(swag)
    if i == 3:
        swag = False

Will the while loop exit after 3 turns?

Does while swag - check if swag exists or if swag is True

Answer 1

while swag: will run while swag is "truthy", which it will be while swag is True, and will not be when you set swag to False.

Answer 2

Does while swag - check if swag exists or if swag is True

It checks if swag is True (or "truthy", I should say). And yes, the loop will exit after 3 iterations because i=i+1 must be executed 3 times until i == 3 and (by the if-statement) swag is set to False, at which point the loop will exit.

But why not check this yourself?

swag = True
i = 0

while swag:
    i=i+1
    print(swag)
    if i == 3:
        swag = False

True
True
True