def mimeData(self, indexlist):
if len(indexlist) <= 0:
return None
items = [self[i.row()] for i in indexlist]
mime = QAbstractListModel.mimeData(self, indexlist)
data = pickle.dumps(vars)
mime.set_data(self.MIME_TYPE, QByteArray(data))
mime._items = items
return mime
