From 5eb336215c573ae49774cab332a882b3a8ca830f Mon Sep 17 00:00:00 2001
From: Paul Tremberth <paul.tremberth@gmail.com>
Date: Thu, 16 Jan 2014 10:44:17 +0100
Subject: [PATCH] Make lxml smart strings functionality customizable

---
 scrapy/selector/unified.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/scrapy/selector/unified.py b/scrapy/selector/unified.py
index 368222768..babb65070 100644
--- a/scrapy/selector/unified.py
+++ b/scrapy/selector/unified.py
@@ -57,6 +57,7 @@ class Selector(object_ref):
         # set:trailing
         "set": "http://exslt.org/sets"
     }
+    _lxml_smart_strings = False
 
     def __init__(self, response=None, text=None, type=None, namespaces=None,
                  _root=None, _expr=None):
@@ -86,7 +87,7 @@ class Selector(object_ref):
 
         try:
             result = xpathev(query, namespaces=self.namespaces,
-                             smart_strings=False)
+                             smart_strings=self._lxml_smart_strings)
         except etree.XPathError:
             raise ValueError("Invalid XPath: %s" % query)