From 2fc3f408c821b5d19bfebb835e182e8d4cdadc56 Mon Sep 17 00:00:00 2001
From: Michael Wozniak <github@koh.ms>
Date: Fri, 7 Mar 2014 23:10:36 -0500
Subject: [PATCH] Exception caused by tx_list not defined

I wasn't seeing this before, so I assume it could be a race condition if
the "load_wallet" function doesn't finish before the history tab is updated.
---
 plugins/exchange_rate.py |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/plugins/exchange_rate.py b/plugins/exchange_rate.py
index 91d195c..8444769 100644
--- a/plugins/exchange_rate.py
+++ b/plugins/exchange_rate.py
@@ -343,8 +343,11 @@ class Plugin(BasePlugin):
 
     def history_tab_update(self):
         if self.config.get('history_rates', 'unchecked') == "checked":
-            tx_list = self.tx_list
-           
+            try:
+                tx_list = self.tx_list
+            except Exception:
+                return
+
             try:
                 mintimestr = datetime.datetime.fromtimestamp(int(min(tx_list.items(), key=lambda x: x[1]['timestamp'])[1]['timestamp'])).strftime('%Y-%m-%d')
             except ValueError:
-- 
1.7.1