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

Trouble with the Quickstart code

  • B

    Here is the code I copy and paste from the Quickstart page.

    The problem seems to be at this line

    datapath = os.path.join(modpath, '../../datas/orcl-1995-2014.txt')

    where the code have problem locating the orcl-1995-2014.txt file... Where shall I place the file so that the code can find it?? Thx in advance

    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

if __name__ == '__main__':
    # Create a cerebro entity
    cerebro = bt.Cerebro()

    # 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, '../../datas/orcl-1995-2014.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 after this date
        todate=datetime.datetime(2000, 12, 31),
        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())

    Below is the IPython console output...

    runfile('C:/Users/Administrator/Desktop/Trading Project/TestRun.py', wdir='C:/Users/Administrator/Desktop/Trading Project')
Starting Portfolio Value: 100000.00
Traceback (most recent call last):

  File "<ipython-input-15-e54c45e4ce34>", line 1, in <module>
    runfile('C:/Users/Administrator/Desktop/Trading Project/TestRun.py', wdir='C:/Users/Administrator/Desktop/Trading Project')

  File "C:\ProgramData\Anaconda3\lib\site-packages\spyder\utils\site\sitecustomize.py", line 705, in runfile
    execfile(filename, namespace)

  File "C:\ProgramData\Anaconda3\lib\site-packages\spyder\utils\site\sitecustomize.py", line 102, in execfile
    exec(compile(f.read(), filename, 'exec'), namespace)

  File "C:/Users/Administrator/Desktop/Trading Project/TestRun.py", line 39, in <module>
    cerebro.run()

  File "C:\ProgramData\Anaconda3\lib\site-packages\backtrader\cerebro.py", line 1127, in run
    runstrat = self.runstrategies(iterstrat)

  File "C:\ProgramData\Anaconda3\lib\site-packages\backtrader\cerebro.py", line 1210, in runstrategies
    data._start()

  File "C:\ProgramData\Anaconda3\lib\site-packages\backtrader\feed.py", line 203, in _start
    self.start()

  File "C:\ProgramData\Anaconda3\lib\site-packages\backtrader\feeds\yahoo.py", line 90, in start
    super(YahooFinanceCSVData, self).start()

  File "C:\ProgramData\Anaconda3\lib\site-packages\backtrader\feed.py", line 671, in start
    self.f = io.open(self.p.dataname, 'r')

FileNotFoundError: [Errno 2] No such file or directory: 'C:\\Users\\Administrator\\Desktop\\Trading Project\\../../datas/orcl-1995-2014.txt'
    0
    B
     1 Reply
  • B
    administrators

    @benjamin-chow said in Trouble with the Quickstart code:

    Where shall I place the file so that the code can find it??

    @benjamin-chow said in Trouble with the Quickstart code:

    FileNotFoundError: [Errno 2] No such file or directory: 'C:\\Users\\Administrator\\Desktop\\Trading Project\\../../datas/orcl-1995-2014.txt'
    0