I want to delay the for loop

I want to open windows sequentially using for loop, and don’t want to import python module.
I tried to refer to here, but it is difficult to proceed.

window = op('win_list')
for i in range(window.numRows-1):

for i in range(window.numRows-1):
script = f"op(‘window{i+1}’).par.winopen.pulse()"
run(script, delayFrames=i)

I often use a Timer CHOP to run a sequence of events over multiple frames. See the OP Snippets for the Timer CHOP.