From 415375e3e2f5cd5d328e3534f93cf9c06e4f80e9 Mon Sep 17 00:00:00 2001
From: Michael Baird <michaelb_111@hotmail.com>
Date: Wed, 3 Apr 2019 11:13:30 +1300
Subject: [PATCH] 0 is an allowed id

---
 chewie/message_parser.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/chewie/message_parser.py b/chewie/message_parser.py
index c2cb4121..2ccbd434 100644
--- a/chewie/message_parser.py
+++ b/chewie/message_parser.py
@@ -21,7 +21,7 @@ def __init__(self, src_mac, message_id):
 
     def __str__(self):
         _id = self.message_id
-        if not _id:
+        if _id is None:
             _id = -1
         return "'%s': src_mac: '%s', id: '%d'" % (self.__class__.__name__, self.src_mac, _id)