Please help I'm beginner

I am trying to use append command, and it doesnt work. Is this code written correctly?

cool_list = “luisgamercool”, “flimflam”, “flamingo”

print(cool_list)

cool_list.append(“ok”)

print(cool_list)

Welcome to DPO! You need square brackets to make that a list:

cool_list = ["luisgamercool", "flimflam", "flamingo"]

(Without the brackets, it’s a “tuple”, which you can’t append stuff to.)

Thank you so much, it worked.