diff -ru defusedxml-0.4.1-orig/defusedxml/common.py defusedxml-0.4.1/defusedxml/common.py
--- defusedxml-0.4.1-orig/defusedxml/common.py	2015-07-17 05:28:36.502213030 +0000
+++ defusedxml-0.4.1/defusedxml/common.py	2015-07-22 11:22:24.203648541 +0000
@@ -30,7 +30,7 @@
         self.pubid = pubid
 
     def __str__(self):
-        tpl = "DTDForbidden(name='{}', system_id={!r}, public_id={!r})"
+        tpl = "DTDForbidden(name='{0}', system_id={1!r}, public_id={2!r})"
         return tpl.format(self.name, self.sysid, self.pubid)
 
 
@@ -47,7 +47,7 @@
         self.notation_name = notation_name
 
     def __str__(self):
-        tpl = "EntitiesForbidden(name='{}', system_id={!r}, public_id={!r})"
+        tpl = "EntitiesForbidden(name='{0}', system_id={1!r}, public_id={2!r})"
         return tpl.format(self.name, self.sysid, self.pubid)
 
 
@@ -62,7 +62,7 @@
         self.pubid = pubid
 
     def __str__(self):
-        tpl = "ExternalReferenceForbidden(system_id='{}', public_id={})"
+        tpl = "ExternalReferenceForbidden(system_id='{0}', public_id={1})"
         return tpl.format(self.sysid, self.pubid)
 
 
diff -ru defusedxml-0.4.1-orig/other/exploit_webdav.py defusedxml-0.4.1/other/exploit_webdav.py
--- defusedxml-0.4.1-orig/other/exploit_webdav.py	2015-07-17 05:28:36.503213033 +0000
+++ defusedxml-0.4.1/other/exploit_webdav.py	2015-07-22 11:23:15.893964297 +0000
@@ -9,7 +9,7 @@
 import httplib
 
 if len(sys.argv) != 2:
-    sys.exit("{} http://user:password@host:port/".format(sys.argv[0]))
+    sys.exit("{0} http://user:password@host:port/".format(sys.argv[0]))
 
 url = urlparse.urlparse(sys.argv[1])
 
diff -ru defusedxml-0.4.1-orig/other/exploit_xmlrpc.py defusedxml-0.4.1/other/exploit_xmlrpc.py
--- defusedxml-0.4.1-orig/other/exploit_xmlrpc.py	2015-07-17 05:28:36.502213030 +0000
+++ defusedxml-0.4.1/other/exploit_xmlrpc.py	2015-07-22 11:23:59.536230889 +0000
@@ -7,7 +7,7 @@
 import urllib2
 
 if len(sys.argv) != 2:
-    sys.exit("{} url".format(sys.argv[0]))
+    sys.exit("{0} url".format(sys.argv[0]))
 
 url = sys.argv[1]
 
@@ -32,7 +32,7 @@
 
 req = urllib2.Request(url, data=xml, headers=headers)
 
-print("Sending request to {}".format(url))
+print("Sending request to {0}".format(url))
 
 resp = urllib2.urlopen(req)