Update libs

libs/html5lib/treewalkers/pulldom.py

@@ -1,9 +1,12 @@
+from __future__ import absolute_import, division, unicode_literals
+
 from xml.dom.pulldom import START_ELEMENT, END_ELEMENT, \
     COMMENT, IGNORABLE_WHITESPACE, CHARACTERS
 
-import _base
+from . import _base
+
+from ..constants import voidElements
 
-from html5lib.constants import voidElements
 
 class TreeWalker(_base.TreeWalker):
     def __iter__(self):
@@ -11,7 +14,7 @@ class TreeWalker(_base.TreeWalker):
         previous = None
         for event in self.tree:
             if previous is not None and \
-              (ignore_until is None or previous[1] is ignore_until):
+                    (ignore_until is None or previous[1] is ignore_until):
                 if previous[1] is ignore_until:
                     ignore_until = None
                 for token in self.tokens(previous, event):
@@ -31,9 +34,9 @@ class TreeWalker(_base.TreeWalker):
             name = node.nodeName
             namespace = node.namespaceURI
             attrs = {}
-            for attr in node.attributes.keys():
+            for attr in list(node.attributes.keys()):
                 attr = node.getAttributeNode(attr)
-                attrs[(attr.namespaceURI,attr.localName)] = attr.value
+                attrs[(attr.namespaceURI, attr.localName)] = attr.value
             if name in voidElements:
                 for token in self.emptyTag(namespace,
                                            name,