From 0a71d41cd5046d32d0efaa558a85d9a94bd303c3 Mon Sep 17 00:00:00 2001
From: jackjack-jj <root@waka.site40.net>
Date: Mon, 5 Aug 2013 04:01:45 +0200
Subject: [PATCH] fix a division-by-zero crash

---
 pywallet.py | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/pywallet.py b/pywallet.py
index 70055d9..854a06e 100644
--- a/pywallet.py
+++ b/pywallet.py
@@ -1,6 +1,6 @@
 #!/usr/bin/env python
 #-*- coding: utf-8 -*-
-pywversion="2.1.0"
+pywversion="2.1.1"
 never_update=False
 
 #
@@ -1560,7 +1560,12 @@ def recov(device, passes, size=102400, inc=10240, outputdir='.'):
 			mki+=1
 		print "\n"
 		tone=time.time()
-		calcspeed=1.0*cpt/(tone-tzero)*60  #calc/min
+		try:
+			calcspeed=1.0*cpt/(tone-tzero)*60  #calc/min
+		except:
+			calcspeed=1.0
+		if calcspeed==0:
+			calcspeed=1.0
 
 		ckeys_not_decrypted=filter(lambda x:x[1].privkey==None, ckeys)
 		refused_to_test_all_pps=True