From e6911b2f254bef8a3968a48dcdc59c8e2931933a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn=20Ketelaars?= <bjorn.ketelaars@hydroxide.nl>
Date: Sun, 8 Nov 2015 14:24:58 +0100
Subject: [PATCH] Avoid using msgpack.packb at import time.

move item_keys = ... to __init__ (self.item_keys = ...)

Solution from/discussed with TW.
---
 borg/archive.py | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/borg/archive.py b/borg/archive.py
index 7edd4162a..008909a2f 100644
--- a/borg/archive.py
+++ b/borg/archive.py
@@ -605,10 +605,9 @@ ITEM_KEYS = set([b'path', b'source', b'rdev', b'chunks',
 class RobustUnpacker:
     """A restartable/robust version of the streaming msgpack unpacker
     """
-    item_keys = [msgpack.packb(name) for name in ITEM_KEYS]
-
     def __init__(self, validator):
         super().__init__()
+        self.item_keys = [msgpack.packb(name) for name in ITEM_KEYS]
         self.validator = validator
         self._buffered_data = []
         self._resync = False