How could I have both of the StopTrail and siginal Close() ?

[jeff lee]

how can I have both of the two exist condition ?
1 normal 'self.sell()' with sma condition meet.
2 'self.sell(exectype=bt.Order.StopTrail, price=self.buyprice * (1 - 0.10))'
in function notify_order(), i set the stop tail order.

when 1) is meet and trigered, how to cancel the 2) automaticlly?

thanks

# Create a Stratey
class TestDoubleSMAStrategy(bt.Strategy):
    params = (
        ('maperiod1', 5),
        ('maperiod2', 20),
    )
    def log(self, txt, dt=None):
        dt = dt or self.datas[0].datetime.date(0)
        print('%s, %s' % (dt.isoformat(), txt))

    def __init__(self):
        self.dataclose = self.datas[0].close

        self.sma1 = bt.indicators.SimpleMovingAverage(
            self.datas[0], period=self.params.maperiod1)

        self.sma2 = bt.indicators.SimpleMovingAverage(
            self.datas[0], period=self.params.maperiod2)

    def notify_order(self, order):
        if order.status in [order.Submitted, order.Accepted]:
            # Buy/Sell order submitted/accepted to/by broker - Nothing to do
            return

        # Check if an order has been completed
        # Attention: broker could reject order if not enougth cash
        if order.status in [order.Completed, order.Canceled, order.Margin]:
            if order.isbuy():
                self.log(
                    'BUY EXECUTED, Price: %.2f, Cost: %.2f, Comm %.2f' %
                    (order.executed.price,
                     order.executed.value,
                     order.executed.comm))
                pass
                buyprice = order.executed.price
                self.sell(exectype=bt.Order.StopTrail, price=buyprice * (1 - 0.20))   #### sell  2)
            elif order.issell():
                self.log(
                    'SELL EXECUTED, Price: %.2f, Cost: %.2f, Comm %.2f' %
                    (order.executed.price,
                     order.executed.value,
                     order.executed.comm))
                pass

            self.bar_executed = len(self)

        # Write down: no pending order
        self.order = None

    def next(self):
        # Simply log the closing price of the series from the reference
        # print(self.datas[0], self.sma0[0], self.sma1[0])
        # print(self.datas[0])

        # Check if we are in the market
        if not self.position:

            # Not yet ... we MIGHT BUY if ...
            if self.sma1[0] > self.sma2[0]:
                # BUY, BUY, BUY!!! (with all possible default parameters)
                self.log('BUY CREATE, %.2f' % self.dataclose[0])

                # Keep track of the created order to avoid a 2nd order
                self.order = self.buy(exectype=bt.Order.Market)

        else:

            if self.sma1[0] < self.sma2[0]:
                # SELL, SELL, SELL!!! (with all possible default parameters)
                self.log('SELL CREATE, %.2f' % self.dataclose[0])

                # Keep track of the created order to avoid a 2nd order
                self.order = self.sell(exectype=bt.Order.Market)     #### sell  1)
        pass

[ab_trader]

Cancel the 2nd order as soon as 1st order is issued or executed using self.cancel(2nd_order_variable).