Function help

[buran]

it's not clear what b in your code is/what library is used, but if I get what you want:

def light_switch(turn_on=True):
    b.set_light([1, 2, 9, 10], 'on', turn_on)

then if you want to turn lights on

light_switch(True)

or just

light_switch()

if you want to turn off

light_switch(False)

now, as I said it's unclear what b is. so here (as well as in your code) it's a global variable, which is not ideal. there is a good chance that this could be implemented better