two callbacks. the first does not refresh the listview, the second does

gistfile1.txt

def callback(instance):

    global names
    global missing
    global missinglist

    names[instance.masterIndex].is_selected = not(names[instance.masterIndex].is_selected)
    print names[instance.masterIndex].is_selected, names[instance.masterIndex]
    for item in missing:
        if names[instance.masterIndex] in missing:
            missing.remove(names[instance.masterIndex])
            newdata = sorted([item[0]+','+ item[1] for item in missing])
            print 'remove'
            missinglist.adapter = MissingListAdapter(data= sorted([item[0]+','+ item[1] for item in missing]), cls= ListItemButton)
            #b.ids['missinglist'].adapter= MissingListAdapter(data= newdata, cls= ListItemLabel)
            #b.ids['missinglist'].adapter.cached_views =[]
            #b.ids['missinglist'].populate()
            #for line in zip(b.ids['missinglist'].adapter.data, newdata):
                #print line
            return
        elif names[instance.masterIndex] not in missing:
            print 'add'
            missing.append(names[instance.masterIndex])
            missinglist.adapter = MissingListAdapter(data= sorted([item[0]+','+ item[1] for item in missing]), cls= ListItemButton)
            #newdata = sorted([item[0]+','+ item[1] for item in missing])
            #b.ids['missinglist'].adapter= MissingListAdapter(data= newdata, cls= ListItemLabel)
            #b.ids['missinglist'].adapter.cached_views =[]
            #b.ids['missinglist'].populate()
            #for line in zip(b.ids['missinglist'].adapter.data, newdata):
                #print line
            return


def callback7(instance, mylist, missinglist):

    global names
    global missing
    classNum = instance.text
    classNum = classNum.strip('Class ')
    classNum = int(classNum)
    #print classNum
    members = classNumFilter(classNum)
    members.sort()
    mylist.adapter = CompositeListAdapter(data=members, args_converter=my_args_converter, selection_mode= 'multiple', allow_empty_selection= True, cls=MyCompositeListItem)
    missing = [item for item in members if item.is_selected == False]
    missinglist.adapter = ListAdapter(data= sorted([item[0]+','+ item[1] for item in missing]), args_converter= args_conv, cls= ListItemButton)

def callback8(instance, mylist, missinglist):

    global names
    global missing
    mylist.adapter = CompositeListAdapter(data=sorted(names), args_converter=my_args_converter, selection_mode= 'multiple', allow_empty_selection= True, cls=MyCompositeListItem)
    missing = [item for item in names if item.is_selected == False]
    missinglist.adapter = ListAdapter(data= sorted([item[0]+','+ item[1] for item in missing]), args_converter= args_conv, cls= ListItemButton)