@cking any luck with this? I'm also seeing the same issue... not quite understanding what does without using optimization response is.

data = bt.feeds.Quandl(
    dataname='AAPL',
    fromdate = datetime(2017,1,1),
    todate = datetime(2018,1,1),
    buffered= True,
    apikey="XXXXXXXX"
    )

    # 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()

when I run this, i get the following...

AttributeError: 'NoneType' object has no attribute 'close'

I am using python 3.6, which could be an issue.

thanks that worked!

Hello, backtrader newbie here, not an expert python guy, but am still learning,

I'm trying to use quandl, but have yet to see any sample code on how it works...
according to the documents, you will need baseURL, but not sure what they want here, I believe my code starts like this, but need help to just get whatever data i can get, can anyone help me? I just need a sample of the code should look like.. I'm also sure I need to use my APIkey as well in this case...

data = bt.feeds.Quandl(
    dataname='AAPL',

#.....
)