3. Error running example code from "Quickstart"
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Error running example code from "Quickstart"

  • 9

    Hi,

    I'm trying to run the example code from the Quickstart section of the website. (I've made slight modifications to hardcode the data file location with absolute the path).

    Below is my code:

    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()

datapath = os.path.abspath('/Users/98thpixel/backtrader/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())```

    I get an error when trying to read the "orcl-1995-2014.txt" file.

    Below is the error I'm getting:

    Starting Portfolio Value: 100000.00
Traceback (most recent call last):
  File "program.py", line 36, in <module>
cerebro.run()
  File "/Users/98thpixel/anaconda3/lib/python3.7/site-packages/backtrader/cerebro.py", line 1127, in run
runstrat = self.runstrategies(iterstrat)
  File "/Users/98thpixel/anaconda3/lib/python3.7/site-packages/backtrader/cerebro.py", line 1212, in runstrategies
data.preload()
  File "/Users/98thpixel/anaconda3/lib/python3.7/site-packages/backtrader/feed.py", line 688, in preload
while self.load():
  File "/Users/98thpixel/anaconda3/lib/python3.7/site-packages/backtrader/feed.py", line 479, in load
_loadret = self._load()
  File "/Users/98thpixel/anaconda3/lib/python3.7/site-packages/backtrader/feed.py", line 710, in _load
return self._loadline(linetokens)
  File "/Users/98thpixel/anaconda3/lib/python3.7/site-packages/backtrader/feeds/yahoo.py", line 174, in _loadline
self.lines.adjclose[0] = adjustedclose
AttributeError: 'Lines_LineSeries_DataSeries_OHLC_OHLCDateTime_Abst' object has no attribute 'adjclose'
    0
  • B
    administrators

    It is a byproduct of having cleaned up the Yahoo feed. Will be corrected today.

    0
  • B
    administrators

    See: Community - Release 1.9.69.122

    0