[hamster-applet] max does not like empty sets.

[Toms Baugis <tbaugis src gnome org>]

commit ed122e6862132e1bee829d1b5a8b3ecd596e1734
Author: Toms Bauģis <toms baugis gmail com>
Date:   Fri Apr 9 17:25:08 2010 +0100

    max does not like empty sets.

 src/hamster/charting.py |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/hamster/charting.py b/src/hamster/charting.py
index ca2304d..7d62d6e 100644
--- a/src/hamster/charting.py
+++ b/src/hamster/charting.py
@@ -128,7 +128,7 @@ class Chart(graphics.Scene):
     def plot(self, keys, data):
         bars = dict([(bar.key, bar.normalized) for bar in self.bars])
 
-        max_val = float(max(data))
+        max_val = float(max(data or [0]))
 
         new_bars, new_labels = [], []
         for key, value in zip(keys, data):