'Lines_LineSeries_LineIterator_DataAccessor_Strateg' object has no attribute 'crossover'

[Dimitar Dimitrov]

Hi Guys, I am new ot BT. I am trying to replicate one of the strategies just for practice purposes. I get the above message for my crossover indicator. Can you please assis whith what may be going wrong? Many thanks!

Pleas see below my code:

import os, sys, argparse
import pandas as pd
import backtrader as bt
import math


class GoldenCross(bt.Strategy):


    params = dict(fast=50, slow=200, order_percentage = 0.95, ticker = "SPY")

    def __int__(self):

        self.fast_moving_average = bt.ind.SMA(
            self.feed.close, period =self.params.fast, plotname = "50 day moving average"
        )

        self.slow_moving_average = bt.ind.SMA(
            self.feed.close, period =self.params.slow, plotname = "200 day moving average"
        )
        self.crossover = bt.ind.CrossOver(self.fast_moving_average, self.slow_moving_average)

    def next(self):
        if self.position.size ==0:
            if self.crossover >0:
                amount_to_invest = (self.params.order_percentage * self.broker.cash)
                self.size = math.floor(amount_to_invest/self.data.close)

                print("Buy {} Share of {} at {}".format(self.size, self.params.ticker, self.data.close[0]))

                self.buy(size=self.size)

        if self.position.size >0:
            if self.crossover<0:
                print("Sell {} Share of {} at {}".format(self.size, self.params.ticker, self.data.close[0]))
                self.close()

cerebro = bt.Cerebro()

cerebro.broker.add_cash(100000)

spy_prices = pd.read_csv("C:/Users/mitco/OneDrive/Documents/Courses/Python/Data/SPY.csv", index_col="Date", parse_dates=True)

feed = bt.feeds.PandasData(dataname = spy_prices)

cerebro.adddata(feed)

cerebro.addstrategy(GoldenCross)

cerebro.run()

cerebro.plot()

[ab_trader]

Should be

def __init__(self):

Not

def __int__(self):

[Dimitar Dimitrov]

@ab_trader said in 'Lines_LineSeries_LineIterator_DataAccessor_Strateg' object has no attribute 'crossover':

def init(self):

Hi ab_trader, thanks a lot for your help.