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Novice at python



  • I tried using the snippet of code from main page with a slight edit and I am getting errors...

    ''' from datetime import datetime
    import backtrader as bt

    class SmaCross(bt.SignalStrategy):
    params = (('pfast', 10), ('pslow', 30),)
    def init(self):
    sma1, sma2 = bt.ind.SMA(period=self.p.pfast), bt.ind.SMA(period=self.p.pslow)
    self.signal_add(bt.SIGNAL_LONG, bt.ind.CrossOver(sma1, sma2))

    cerebro = bt.Cerebro()
    
    data = bt.feeds.CCXT(exchange='coinbasepro', symbol='ETH/USD', ohlcv_limit=None,
                        fromdate=datetime(2019, 3, 1),
                        todate=datetime(2019, 3, 18))
    
    #data = bt.feeds.YahooFinanceData(dataname='MSFT', fromdate=datetime(2011, 1, 1),
    #                                todate=datetime(2012, 12, 31))
    cerebro.adddata(data)
    
    cerebro.addstrategy(SmaCross)
    cerebro.run()
    cerebro.plot() 
    

    Errors:

    To many positional arguements for constuctor call pylint line 8,41
    Unexpected keyword fromdate
    Unexpected keyword todate
    Undefined variable SMACross

    Help the noob please!

    Thanks.



  • @no1uknow Sigh can't edit post? Wanted to fix the code block.


  • administrators

    @no1uknow said in Novice at python:

    Errors:
    To many positional arguements for constuctor call pylint line 8,41
    Unexpected keyword fromdate
    Unexpected keyword todate
    Undefined variable SMACross

    Those aren't errors. That's pylint

    Do you have any actual error?



  • As an idea - CCXT feed is not in the bt module. You might need to install and import it separately.


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