[Django]-How can you exclude an item in the query set while in a for loop?

Change the last portion of your code like this:

for a in results:

### code ###

    results = results.exclude(id=a.id)

since queryset.exclude() returns a new queryset, without changing the existing.

But you would do database query for each loop though since you calling .exclude() with each loop

If you just want to remove object for each loop, you could use:

new_list = list(results)
for a in results:  
    ### code ###
    new_list.remove(a)