Question

Beginner Python help: What does n-=1 do in a while loop?

Answer 1

num = 5
if num > 2:
print(num)
num -= 1
print(num)

output: 5,4

Answer 2

I thought num-=1 would subtract one from n each time through the loop, but then why no 3 printed?

Answer 3

actually by my reasoning if that were true it should print out the 2 as well...

Answer 4

version 2.7 if that matters

Answer 5

oh never mind, I think I know

Answer 6

it's not even a while loop, it's an if clause, so it's only executed once.
duh.