Django in / not in query

Question

I\'m trying to figure out how to write a \'not in\' style query in django. For example, the query structure I\'m thinking of would look like this.

select tab         


        

Answer 1

[o1 for o1 in table1.objects.all() if o1.id not in [o2.id for o2 in table2.objects.filter(id=some_parm)]]

Or better

not_in_ids = [obj.id for obj in table2.objects.filter(id=some_parm)]
selected_objects = [obj for obj in table1.objects.iterator() if obj.id not in not_in_ids]