if oldFlatInfoRow is not None and oldFlatInfoRow is not None isFlatInf

if oldFlatInfoRow is not None and oldFlatInfoRow[0] is not None:
        isFlatInfoUpdated = 1
        oldFlatPriceInfo = oldFlatInfoRow[0]
        try:
            flatPriceDelta = float(flatPriceInfo) - float(oldFlatPriceInfo)
        except ValueError:
            pass