1 files changed, 10 insertions, 10 deletions
diff --git a/slixmpp/plugins/xep_0060/stanza/pubsub_owner.py b/slixmpp/plugins/xep_0060/stanza/pubsub_owner.py
index 402e5e30..850df8cf 100644
--- a/slixmpp/plugins/xep_0060/stanza/pubsub_owner.py
+++ b/slixmpp/plugins/xep_0060/stanza/pubsub_owner.py
@@ -25,7 +25,7 @@ class DefaultConfig(ElementBase):
     namespace = 'http://jabber.org/protocol/pubsub#owner'
     name = 'default'
     plugin_attrib = name
-    interfaces = set(('node', 'config'))
+    interfaces = {'node', 'config'}
 
     def __init__(self, *args, **kwargs):
         ElementBase.__init__(self, *args, **kwargs)
@@ -41,7 +41,7 @@ class DefaultConfig(ElementBase):
 
 class OwnerAffiliations(Affiliations):
     namespace = 'http://jabber.org/protocol/pubsub#owner'
-    interfaces = set(('node',))
+    interfaces = {'node'}
 
     def append(self, affiliation):
         if not isinstance(affiliation, OwnerAffiliation):
@@ -51,40 +51,40 @@ class OwnerAffiliations(Affiliations):
 
 class OwnerAffiliation(Affiliation):
     namespace = 'http://jabber.org/protocol/pubsub#owner'
-    interfaces = set(('affiliation', 'jid'))
+    interfaces = {'affiliation', 'jid'}
 
 
 class OwnerConfigure(Configure):
     namespace = 'http://jabber.org/protocol/pubsub#owner'
     name = 'configure'
     plugin_attrib = name
-    interfaces = set(('node',))
+    interfaces = {'node'}
 
 
 class OwnerDefault(OwnerConfigure):
     namespace = 'http://jabber.org/protocol/pubsub#owner'
-    interfaces = set(('node',))
+    interfaces = {'node'}
 
 
 class OwnerDelete(ElementBase, OptionalSetting):
     namespace = 'http://jabber.org/protocol/pubsub#owner'
     name = 'delete'
     plugin_attrib = name
-    interfaces = set(('node',))
+    interfaces = {'node'}
 
 
 class OwnerPurge(ElementBase, OptionalSetting):
     namespace = 'http://jabber.org/protocol/pubsub#owner'
     name = 'purge'
     plugin_attrib = name
-    interfaces = set(('node',))
+    interfaces = {'node'}
 
 
 class OwnerRedirect(ElementBase):
     namespace = 'http://jabber.org/protocol/pubsub#owner'
     name = 'redirect'
     plugin_attrib = name
-    interfaces = set(('node', 'jid'))
+    interfaces = {'node', 'jid'}
 
     def set_jid(self, value):
         self._set_attr('jid', str(value))
@@ -97,7 +97,7 @@ class OwnerSubscriptions(Subscriptions):
     name = 'subscriptions'
     namespace = 'http://jabber.org/protocol/pubsub#owner'
     plugin_attrib = name
-    interfaces = set(('node',))
+    interfaces = {'node'}
 
     def append(self, subscription):
         if not isinstance(subscription, OwnerSubscription):
@@ -109,7 +109,7 @@ class OwnerSubscription(ElementBase):
     namespace = 'http://jabber.org/protocol/pubsub#owner'
     name = 'subscription'
     plugin_attrib = name
-    interfaces = set(('jid', 'subscription'))
+    interfaces = {'jid', 'subscription'}
 
     def set_jid(self, value):
         self._set_attr('jid', str(value))