From 9429c8ac1e7504ed3a6327b2342650f77a6f07de Mon Sep 17 00:00:00 2001
From: Neil Murphy <neil@neilmurphy.tech>
Date: Mon, 2 Aug 2021 08:38:35 -0400
Subject: [PATCH] Fixes issue #61: self.positions throws attibute error when IB
 Broker used.

self.positions = collections.defaultdict(Position) is consistent in all the other brokers, was missed in IB.
---
 backtrader/brokers/ibbroker.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/backtrader/brokers/ibbroker.py b/backtrader/brokers/ibbroker.py
index 2c1b0d9a0..3f1651594 100644
--- a/backtrader/brokers/ibbroker.py
+++ b/backtrader/brokers/ibbroker.py
@@ -276,6 +276,7 @@ def __init__(self, **kwargs):
         self.ordstatus = collections.defaultdict(dict)
         self.notifs = queue.Queue()  # holds orders which are notified
         self.tonotify = collections.deque()  # hold oids to be notified
+        self.positions = self.ib.positions
 
     def start(self):
         super(IBBroker, self).start()