[PyQt] Overloading new-style signal

[Knacktus]

Hi guys,

I don't get overloading of new-style signals to work. I can't spot the 
mistake ... my eyes don't see anything anymore ;-).

Any help is highly appreciated.

Cheers,

Jan

Here's an example:


import PyQt4.Qt as Qt
import PyQt4.QtCore as QtCore


class ItemsChangedNotifier(Qt.QObject):

     items_changed = QtCore.pyqtSignal([list], [dict])


class ItemChanger(object):

     def __init__(self):
         self.notifier = ItemsChangedNotifier()

     def change_with_list(self, items):
         self.notifier.items_changed.emit(items)

     def change_with_dict(self, old_items_to_new_items):
         self.notifier.items_changed[dict].emit(old_items_to_new_items)

class Presenter(object):

     def __init__(self, item_changer):
         self.item_changer = item_changer
         self.item_changer.notifier.items_changed.connect(self.show_list)
 
self.item_changer.notifier.items_changed[dict].connect(self.show_dict)

     def show_list(self, items):
         print "list %s" % items

     def show_dict(self, old_items_to_new_items):
         print "dict %s" % old_items_to_new_items

if __name__ == "__main__":

     changer = ItemChanger()
     presenter = Presenter(changer)

     changer.change_with_list(["Check", 1, 2, 3])
     changer.change_with_dict({"old": "new"})