If you need to decrement a loop in Python, then you can do the following:
How to Decrement a loop in Python using -1
The optional third argument you can pass to the range function is the order.
The default order is to count up / increment, while the -1 value, is to count down / decrement.
for i in range(3, 0, -1):
print(i)
Output: 3 2 1
How to Decrement a loop in Python using while
You can also use a while loop and set the value to the upper bound, and then decrement while in the loop itself.
i = 3
while (i > 0):
print(i)
i = i-1
Output: 3 2 1
