diff --git a/horizon/tabs/base.py b/horizon/tabs/base.py
index 7a214967e3..48cca738de 100644
--- a/horizon/tabs/base.py
+++ b/horizon/tabs/base.py
@@ -193,7 +193,7 @@ class TabGroup(html.HTMLElement):
         return None
 
     def get_loaded_tabs(self):
-        return filter(lambda t: self.get_tab(t.slug), self._tabs.values())
+        return [tab for tab in self._tabs.values() if self.get_tab(tab.slug)]
 
     def get_selected_tab(self):
         """Returns the tab specific by the GET request parameter.
diff --git a/openstack_dashboard/dashboards/identity/groups/views.py b/openstack_dashboard/dashboards/identity/groups/views.py
index 2f0f2d80a6..b312470be0 100644
--- a/openstack_dashboard/dashboards/identity/groups/views.py
+++ b/openstack_dashboard/dashboards/identity/groups/views.py
@@ -117,7 +117,7 @@ class GroupManageMixin(object):
                                            domain=domain_id)
         group_members = self._get_group_members()
         group_member_ids = [user.id for user in group_members]
-        return filter(lambda u: u.id not in group_member_ids, all_users)
+        return [u for u in all_users if u.id not in group_member_ids]
 
 
 class ManageMembersView(GroupManageMixin, tables.DataTableView):