Update libs

libs/html5lib/serializer/__init__.py

@@ -1,17 +1,16 @@
+from __future__ import absolute_import, division, unicode_literals
 
-from html5lib import treewalkers
+from .. import treewalkers
 
-from htmlserializer import HTMLSerializer
-from xhtmlserializer import XHTMLSerializer
+from .htmlserializer import HTMLSerializer
 
-def serialize(input, tree="simpletree", format="html", encoding=None,
+
+def serialize(input, tree="etree", format="html", encoding=None,
               **serializer_opts):
     # XXX: Should we cache this?
-    walker = treewalkers.getTreeWalker(tree) 
+    walker = treewalkers.getTreeWalker(tree)
     if format == "html":
         s = HTMLSerializer(**serializer_opts)
-    elif format == "xhtml":
-        s = XHTMLSerializer(**serializer_opts)
     else:
-        raise ValueError, "type must be either html or xhtml"
+        raise ValueError("type must be html")
     return s.render(walker(input), encoding)