From f50768b0b2176998675e728d84ac05f0eef19614 Mon Sep 17 00:00:00 2001
From: Mike Gilbert <floppym@gentoo.org>
Date: Sun, 17 May 2015 12:14:16 -0400
Subject: [PATCH] Catch/ignore IOError when opening picklefile for reading in
 yacc.yacc()

Should resolve #66.
---
 ply/yacc.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/ply/yacc.py b/ply/yacc.py
index eb02cc2..2835c90 100644
--- a/ply/yacc.py
+++ b/ply/yacc.py
@@ -3265,6 +3265,8 @@ def yacc(method='LALR', debug=yaccdebug, module=None, tabmodule=tab_module, star
         errorlog.warning(str(e))
     except ImportError:
         pass
+    except IOError:
+        pass
 
     if debuglog is None:
         if debug:
