How to tick checkboxes with the same name?

[Peter Otten]

malayrev at gmail.com wrote:

> I faced a problem: to implement appropriate search program I need to tick
> few checkboxes which turned out to have the same name (name="a",
> id="a1","a2","a3","a4"). Set_input('a', True) does not work (I use Grab
> library), 

For all but the most popular projects a url works wonders. I'm assuming 

http://grablib.org

> this command leads to the error "checkboxgroup must be set to a
> sequence". I don't understand what the sequence actually is, so I'm stuck
> with how to tick the checkboxes. 

If I were to guess:

set_input("a", [True, True, True, True])

but I don't see that form documented on page

http://docs.grablib.org/api/ext_form.html

If it doesn't work try

set_input_by_id(_"a1", True)
set_input_by_id(_"a2", True)

and so on.