Three ways to do the same thing (now Four!)

options.py

    # option 1
    if request.POST['modify'] == 'public':
        assign_perm('modify', anon, rs)
    else:
        remove_perm('modify', anon, rs)
    if request.POST['view'] == 'public':
        assign_perm('view', anon, rs)
    else:
        remove_perm('view', anon, rs)
    if request.POST['execute'] == 'public':
        assign_perm('execute', anon, rs)
    else:
        remove_perm('execute', anon, rs)
    
    # option 2 (factoring out commonality)
    for perm in ['modify', 'view', 'execute']:
        if request.POST[perm] == "public":
            assign_perm(perm, anon, rs)
        else:
            remove_perm(perm, anon, rs)

    # option 3 (first class functions and a ternary)
    for perm in ['modify', 'view', 'execute']:
        fn = assign_perm if request.POST[perm] == "public" else remove_perm
        fn(perm, anon, rs)

    # option 4 (Nate Eloe Ballmer Peak Special)
    [apply(assign_perm if request.POST[perm] == "public" else remove_perm, 
           (perm, anon, rs)) for perm
           in ['modify', 'view', 'execute']]