def headerData(self, section, orientation, role=Qt.DisplayRole):
        if role == Qt.DisplayRole and orientation == Qt.Horizontal:
            return self.headerLabels[section]
        return QAbstractTableModel.headerData(self, section, orientation, role)

def columnCount(self, parent=QModelIndex):
        try:
            column_count = len(self.tableData[0])
            return column_count
        except:
            return 0