I ran sample code but I did not work. what should I do?

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

Create a Stratey

class TestStrategy(bt.Strategy):

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

def next(self):
    # Simply log the closing price of the series from the reference
    self.log('Close, %.2f' % self.dataclose[0])

    if self.dataclose[0] < self.dataclose[-1]:
        # current close less than previous close

        if self.dataclose[-1] < self.dataclose[-2]:
            # previous close less than the previous close

            # BUY, BUY, BUY!!! (with all possible default parameters)
            self.log('BUY CREATE, %.2f' % self.dataclose[0])
            self.buy()

if name == 'main':
# Create a cerebro entity
cerebro = bt.Cerebro()

# Add a strategy
cerebro.addstrategy(TestStrategy)

# Datas are in a subfolder of the samples. Need to find where the script is
# because it could have been called from anywhere
modpath = os.path.dirname(os.path.abspath(sys.argv[0]))
datapath = os.path.join(modpath, '/Users/javad/Trading/Bt/Untitled-1.txt')

# Create a Data Feed
data = bt.feeds.YahooFinanceCSVData(
    dataname=datapath,
    # Do not pass values before this date
    fromdate=datetime.datetime(2000, 1, 1),
    # Do not pass values before this date
    todate=datetime.datetime(2000, 12, 31),
    # Do not pass values after this date
    reverse=False)

# Add the Data Feed to Cerebro
cerebro.adddata(data)

# Set our desired cash start
cerebro.broker.setcash(100000.0)

# Print out the starting conditions
print('Starting Portfolio Value: %.2f' % cerebro.broker.getvalue())

# Run over everything
cerebro.run()

# Print out the final result
print('Final Portfolio Value: %.2f' % cerebro.broker.getvalue())

backtrader

Things you can do

1. Read have you have just before your eyes

For code/output blocks: Use ``` (aka backtick or grave accent) in a single line before and after the block. See: http://commonmark.org/help/

This is at the top of each and every page of the forum. The advice is actually generic and helps for everything.

If not your code cannot be read by others

2. Nobody knows what went wrong.

You say it did not work.

What's the error?
What's the data?
What's XXX? (anything that can help)