IBStore is clearly in there, I can see it :P

And you are sure that this does not work now? Well, it has to work

store = backtrader.stores.ibstore.IBStore(port=7497)

@vbs said in module 'backtrader.stores' has no attribute 'IBStore':

import backtrader.stores.ibstore

Hm please open a python shell and do this:

import backtrader.stores.ibstore

and then

dir(backtrader.stores.ibstore)

and post the output.

You didnt import the module ibstore. Try e.g.

import backtrader.stores.ibstore as ibstore
store = ibstore.IBStore(port=7497)

I can just guess that you have an outdated Bokeh version. For a better guess you will need to add information what you are using and what you did in the first place to get to that error.

I uploaded a wheel to pypi. Could you give it a try?
https://pypi.org/project/backtrader-plotting/

Hello gentlemen,

I am back at this topic (everyhing I say is based on my current understanding, please feel to comment if I am wrong somewhere):
When resampling ticks to a higher timeframe then currently backtrader counts ticks on the edge (e.g. 14:00:00 when Tick -> Hour) as last (closing) value for the current bar. This intentionally as far as I know.
I was expeceting (since I know it from other software packages) that such ticks would count as the open value for the following bar.

I had a topic about this here already (I thought it was a bug back then):
https://community.backtrader.com/topic/777/bug-building-bars-in-live-mode-regarding-last-tick

So I tried to change the backtrader code to make it behave like I am used to. I did it with this commit which touches backtrader's Resampler filter:
https://github.com/verybadsoldier/backtrader/commit/014344445e0fde1b217cf912619839f4cca20cc8

The commit adds a parameter tickedgestart to the Resampler (defaults to False). When setting to True then the alternative behavior is activated (only when resampling Tick). So far it does what I wanted for me.

Please @backtrader would you maybe take a look at the commit and tell me if you see problems with that approach? I feel that I don't have a well enough understanding of the internals to be sure to avoid side effects. :(

It needs python 3.6 to run. Your problem curre

I guess the problem is your Python version. You need at least Python 3.6.

Ok, thanks alot!

Ok, thanks, thats another solution. But I thought it would be nice to make that parameter not part of the regular strategy parameter set. Mainly because I would prefer if that parameter would not appear as normal parameter in my result evaluation scriptings.

I went for using this:

        if self.cerebro._dooptimize:
            return

I know _dooptimize is not part of the official API and might break anytime but I think it is ok for now ofr my use case. Thanks!