From 5914761ff8e3134ceade38b421e07509f8cef009 Mon Sep 17 00:00:00 2001
From: Damien Elmes <git@ichi2.net>
Date: Sat, 26 Mar 2011 20:58:35 +0900
Subject: [PATCH] don't die if the reps data is empty

---
 anki/graphs.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/anki/graphs.py b/anki/graphs.py
index 6105262b6..79788a10b 100644
--- a/anki/graphs.py
+++ b/anki/graphs.py
@@ -100,6 +100,8 @@ group by day order by day""" % (self._limit(), lim),
                                _("Review Time"))
 
     def _repsGraph(self, data, days, reptitle, timetitle):
+        if not data:
+            return ""
         d = data
         conf = dict(
             xaxis=dict(tickDecimals=0),