From e173c8084fbe81dee73fe76cc8f7383d44fbe306 Mon Sep 17 00:00:00 2001
From: Fabio Erculiani <lxnay@sabayon.org>
Date: Fri, 7 May 2010 17:10:58 +0200
Subject: [PATCH] [entropy.cache] catch AttributeError, variable can be None

---
 libraries/entropy/cache.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/libraries/entropy/cache.py b/libraries/entropy/cache.py
index 08105bfb4..94c23c696 100644
--- a/libraries/entropy/cache.py
+++ b/libraries/entropy/cache.py
@@ -152,7 +152,11 @@ class EntropyCacher(Singleton):
         __alive becomes False.
         """
         # make sure our set delay is respected
-        self.__cache_writer.set_delay(EntropyCacher.WRITEBACK_TIMEOUT)
+        try:
+            self.__cache_writer.set_delay(EntropyCacher.WRITEBACK_TIMEOUT)
+        except AttributeError:
+            # can be None
+            pass
 
         while self.__alive or run_until_empty: