From 1b2d79988f72dc7144bd8263208a12c776d65605 Mon Sep 17 00:00:00 2001
From: Scott Sanderson <scoutoss@gmail.com>
Date: Tue, 2 Sep 2014 20:42:49 -0400
Subject: [PATCH] BUG: Fix exception when comparing Event to object with no
 __dict__.

In particular don't throw an exception on comparison to `None`.
---
 zipline/protocol.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/zipline/protocol.py b/zipline/protocol.py
index 9aa7fa5c..d7bc4997 100644
--- a/zipline/protocol.py
+++ b/zipline/protocol.py
@@ -98,7 +98,7 @@ class Event(object):
         return self.__dict__.keys()
 
     def __eq__(self, other):
-        return self.__dict__ == other.__dict__
+        return hasattr(other, '__dict__') and self.__dict__ == other.__dict__
 
     def __contains__(self, name):
         return name in self.__dict__