Python 3 compatibility

pylib/gyp/easy_xml.py

Index: pylib/gyp/easy_xml.py
diff --git a/pylib/gyp/easy_xml.py b/pylib/gyp/easy_xml.py
index bf949b6ac9b6e6606a80c5a73cf3ef89e56efffe..864e96a5a106d97e21201a2c98abd246e8ebe70a 100644
--- a/pylib/gyp/easy_xml.py
+++ b/pylib/gyp/easy_xml.py
@@ -5,6 +5,10 @@
 import re
 import os
 
+try:
+  reduce
+except NameError:
+  from functools import reduce
 
 def XmlToString(content, encoding='utf-8', pretty=False):
   """ Writes the XML content to disk, touching the file only if it has changed.
@@ -79,7 +83,7 @@ def _ConstructContentList(xml_parts, specification, pretty, level=0):
   # Optionally in second position is a dictionary of the attributes.
   rest = specification[1:]
   if rest and isinstance(rest[0], dict):
-    for at, val in sorted(rest[0].iteritems()):
+    for at, val in sorted(rest[0].items()):
       xml_parts.append(' %s="%s"' % (at, _XmlEscape(val, attr=True)))
     rest = rest[1:]
   if rest: