array assignment index out of range

[Mohamad Rafiee]

from future import (absolute_import, division, print_function,
unicode_literals)

import datetime # For datetime objects
import os.path # To manage paths
import sys # To find out the script name (in argv[0])

Import the backtrader platform

import backtrader as bt
import backtrader.indicators as btind
import math

Create a Stratey

class TestStrategy(bt.Strategy):
params = (
('maperiod', 15),
)

def log(self, txt, dt=None):
    ''' Logging function fot this strategy'''
    dt = dt or self.datas[0].datetime.date(0)
    print('%s, %s' % (dt.isoformat(), txt))

def __init__(self):
    # Keep a reference to the "close" line in the data[0] dataseries
    self.dataclose = self.datas[0].close

    # To keep track of pending orders and buy price/commission
    self.order = None
    self.buyprice = None
    self.buycomm = None

    # Add a MovingAverageSimple indicator
    self.sma = bt.ind.SMA(self.datasclose, period = 40)

[vladisld]

Please check the following similar posts (probably you may have the same problem):

https://community.backtrader.com/topic/407/indexerror-array-assignment-index-out-of-range
https://community.backtrader.com/topic/1797/getting-indexerror-array-assignment-index-out-of-range-in-cerebro-run

[ab_trader]

You may want to share the full script.