Why doesn’t it stop? Using “or”

Question

I can’t figure this out. The code shown below stops at 0. If you change b to “b=-1”, it’s an infinite loop! I added the break so it would t freeze up my program. So why doesn’t the loop keep going when b is 0 also?? Why does it stop? Why wouldnt it stop if b is -1? Help!!!!

a=5
b=0
while(a or b):
a-=1
if a == -10:
break

print(a)

print(a)

Answer 1

-1 is True. The only number that is False is 0