From e035f83edf5271d6438213ddb4524ac99012d2a6 Mon Sep 17 00:00:00 2001
From: Anders Ingemann <anders@ingemann.de>
Date: Sun, 25 Jan 2015 20:00:57 +0100
Subject: [PATCH] Fix problem when (de-)serializing bootstrapinfo twice

---
 bootstrapvz/base/bootstrapinfo.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/bootstrapvz/base/bootstrapinfo.py b/bootstrapvz/base/bootstrapinfo.py
index 9162b62..f5dc0bc 100644
--- a/bootstrapvz/base/bootstrapinfo.py
+++ b/bootstrapvz/base/bootstrapinfo.py
@@ -118,7 +118,10 @@ class BootstrapInformation(object):
 		state = self.__dict__.copy()
 		exclude_keys = ['source_lists', 'preference_lists', 'packages']
 		for key in exclude_keys:
-			del state[key]
+			# We may have been serialized before,
+			# so don't fail if the keys do not exist
+			if key in state:
+				del state[key]
 		state['__class__'] = self.__module__ + '.' + self.__class__.__name__
 		return state