From 78fb1561f7060b20ca527a8a7e7f9bd5018891cf Mon Sep 17 00:00:00 2001
From: Ned Batchelder <ned@nedbatchelder.com>
Date: Sat, 13 Oct 2012 13:51:50 -0400
Subject: Fix #201: wrong default for traces0 being missing.

---
 coverage/collector.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'coverage')

diff --git a/coverage/collector.py b/coverage/collector.py
index 24c845ba..b8048e45 100644
--- a/coverage/collector.py
+++ b/coverage/collector.py
@@ -253,7 +253,7 @@ class Collector(object):
             if fn0:
                 tracer0 = getattr(fn0, '__self__', None)
                 if tracer0:
-                    traces0 = getattr(tracer0, 'traces', None)
+                    traces0 = getattr(tracer0, 'traces', [])
 
         # Install the tracer on this thread.
         fn = self._start_tracer()
-- 
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