def deleteAllCells(self):
        (rowCount, columnCount) = self.getDimension()
        for r in xrange(rowCount):
            for c in xrange(columnCount):
                self.deleteCell(r, c)
deleteAllCells() -> None
dataset/ETHPy150Open VisTrails/VisTrails/vistrails/packages/spreadsheet/spreadsheet_tab.py/StandardWidgetSheetTabInterface.deleteAllCells