OK, figured that out.

1 files changed, 5 insertions, 5 deletions

diff --git a/bs4/builder/_html5lib.py b/bs4/builder/_html5lib.py
index d74c4b0..e9d7f58 100644
--- a/bs4/builder/_html5lib.py
+++ b/bs4/builder/_html5lib.py
@@ -102,18 +102,18 @@ class AttrList(object):
         self.element = element
         self.attrs = dict(self.element.attrs)
     def __iter__(self):
-        return self.attrs.items().__iter__()
+        return list(self.attrs.items()).__iter__()
     def __setitem__(self, name, value):
         "set attr", name, value
         self.element[name] = value
     def items(self):
-        return self.attrs.items()
+        return list(self.attrs.items())
     def keys(self):
-        return self.attrs.keys()
+        return list(self.attrs.keys())
     def __getitem__(self, name):
         return self.attrs[name]
     def __contains__(self, name):
-        return name in self.attrs.keys()
+        return name in list(self.attrs.keys())
 
 
 class Element(html5lib.treebuilders._base.Node):
@@ -155,7 +155,7 @@ class Element(html5lib.treebuilders._base.Node):
 
     def setAttributes(self, attributes):
         if attributes is not None and attributes != {}:
-            for name, value in attributes.items():
+            for name, value in list(attributes.items()):
                 self.element[name] =  value
             # The attributes may contain variables that need substitution.
             # Call set_up_substitutions manually.