You can supply a negative step value to generate a list of numbers that is decreasing. If you do that, you need to make sure your stopping value is less than your starting value, or else you’ll get a list with no elements:
for i in range(10, -6, -2):
print(i)
This will start at 10
and count down by 2
until you reach -6
, or rather -4
because you don’t include -6
.