I want to have my for loop count down using a variable

Question

step = int(input('enter a step size to count down by '))
for i in range(0,31,step):
    print(i)

I would like to know how to make this loop count down instead of up like it currently does. Thanks. (edit): I had previously tried swapping the start and stop values, which didn't work. Then i tried making 'step' negative int the range function which didn't work. I wasn't aware that doing both of these things together was a viable solution. Thanks to everyone who posted in response

i've tried that and once i ran it and input the value i wanted, it wouldn't output the countdown — Johann Sebastian Gonzalez, Jun 04 '18 at 15:06
@JohannSebastianGonzalez It works e.g. `list(range(31,0,-1))` — Chris_Rands, Jun 04 '18 at 15:08

score 0 · Accepted Answer · answered Jun 04 '18 at 15:10

0

Just move the start and end value and and negate the step value

step = int(input('enter a step size to count down by '))
for i in range(31, 0 ,-step):
    print(i)

answered Jun 04 '18 at 15:10

Yassine Faris

951
6
26

Thanks. I tried doing both steps separately but it didn't occur to me to try them together – Johann Sebastian Gonzalez Jun 04 '18 at 15:31

I want to have my for loop count down using a variable

1 Answers1