From c86b12154bda14294dddf58bf3026c487566e3af Mon Sep 17 00:00:00 2001
From: Johan Dahlin <jdahlin@litl.com>
Date: Fri, 20 Feb 2009 12:50:01 +0000
Subject: Send in an empty list instead of None.

---
diff --git a/giscanner/xmlwriter.py b/giscanner/xmlwriter.py
index 3c14162..9f222e9 100644
--- a/giscanner/xmlwriter.py
+++ b/giscanner/xmlwriter.py
@@ -120,6 +120,8 @@ class XMLWriter(object):
         self.write_line(prefix + attrs + suffix)
 
     def push_tag(self, tag_name, attributes=None):
+        if attributes is None:
+            attributes = []
         self._open_tag(tag_name, attributes)
         self._tag_stack.append(tag_name)
         self._indent += self._indent_unit
--
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