It is not a bug,but something let code more pretty . code in backtrader/lineiterator/DataAccessor

[tianjixuetu]

class DataAccessor(LineIterator):
    
    PriceClose = DataSeries.Close
    PriceLow = DataSeries.Low
    PriceHigh = DataSeries.High
    PriceOpen = DataSeries.Open
    PriceVolume = DataSeries.Volume
    PriceOpenInterest = DataSeries.OpenInterest  # modify the  PriceOpenInteres to PriceOpenInterest
    PriceDateTime = DataSeries.DateTime

ok, I search for the PriceOpenInteres in backtrader on vscode,it just emerge once in this class,so maybe any name can be used here,but I think PriceOpenInterest may be more pretty.