a=hou.parm('/obj/geo1/null1/parm')
>>> a.eval()
'/obj/spotlight1 /obj/arealight1'
>>>
The above parm is an operator list
spotlight1 and arealight1 are the nodes I selected from the open floating bundle choose that comes with the operator list parameter

Now I want to make this automated
say for example
it generates two takes from the operator list.Please help me out.Thank you

I did not understand anything of this.

What are you trying to do?

I created a operator list from the edit parameter interface window.
Now I select two lights say pointlight1 and spotlight1
I want to create two takes for the lights that i selected from the operator lists