From 75dedea2014c9ea703bb4000fbfda45c20b196e5 Mon Sep 17 00:00:00 2001
From: Mac Mollison <mollison@cs.unc.edu>
Date: Thu, 11 Feb 2010 22:04:59 -0500
Subject: Bugfix: possible divide by zero in stats.py

---
 stats.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'stats.py')

diff --git a/stats.py b/stats.py
index 6216f44..d61be6f 100644
--- a/stats.py
+++ b/stats.py
@@ -24,7 +24,10 @@ def stats(stream):
                     min_inversion = length
                 sum_inversions += length
         yield record
-    avg_inversion = int(sum_inversions / num_inversions)
+    if num_inversions > 0:
+        avg_inversion = int(sum_inversions / num_inversions)
+    else:
+        avg_inversion = 0
     class Obj(): pass
     rec = Obj()
     rec.record_type = "meta"
-- 
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