From 38c9b1547600eb82b3b214d99b208627992b8987 Mon Sep 17 00:00:00 2001
From: Markus Unterwaditzer <markus@unterwaditzer.net>
Date: Wed, 22 Apr 2015 15:36:09 +0200
Subject: [PATCH] Improve error message

---
 khal/khalendar/event.py | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/khal/khalendar/event.py b/khal/khalendar/event.py
index 5f29c212f..332b467d8 100644
--- a/khal/khalendar/event.py
+++ b/khal/khalendar/event.py
@@ -283,8 +283,10 @@ def compact(self, day, timeformat='%H:%M'):
             else:
                 return self._compact_datetime(day, timeformat)
         except Exception as e:
-            raise type(e)('Something went wrong while displaying "{}": {}'
-                          .format(self.href, str(e)))
+            newarg = ('Something went wrong while displaying "{}"'
+                      .format(self.href),)
+            e.args = newarg + e.args
+            raise
 
     def _compact_allday(self, day):
         if self.recur: