5 files changed, 15 insertions, 14 deletions
diff --git a/sleekxmpp/plugins/xep_0009/rpc.py b/sleekxmpp/plugins/xep_0009/rpc.py
index 4e1c538b..3378c650 100644
--- a/sleekxmpp/plugins/xep_0009/rpc.py
+++ b/sleekxmpp/plugins/xep_0009/rpc.py
@@ -32,15 +32,15 @@ class XEP_0009(BasePlugin):
         register_stanza_plugin(RPCQuery, MethodCall)
         register_stanza_plugin(RPCQuery, MethodResponse)
 
-        self.xmpp.registerHandler(
+        self.xmpp.register_handler(
             Callback('RPC Call', MatchXPath('{%s}iq/{%s}query/{%s}methodCall' % (self.xmpp.default_ns, RPCQuery.namespace, RPCQuery.namespace)),
             self._handle_method_call)
         )
-        self.xmpp.registerHandler(
+        self.xmpp.register_handler(
             Callback('RPC Call', MatchXPath('{%s}iq/{%s}query/{%s}methodResponse' % (self.xmpp.default_ns, RPCQuery.namespace, RPCQuery.namespace)),
             self._handle_method_response)
         )
-        self.xmpp.registerHandler(
+        self.xmpp.register_handler(
             Callback('RPC Call', MatchXPath('{%s}iq/{%s}error' % (self.xmpp.default_ns, self.xmpp.default_ns)),
             self._handle_error)
         )
diff --git a/sleekxmpp/plugins/xep_0030/stanza/items.py b/sleekxmpp/plugins/xep_0030/stanza/items.py
index 512f2336..10458614 100644
--- a/sleekxmpp/plugins/xep_0030/stanza/items.py
+++ b/sleekxmpp/plugins/xep_0030/stanza/items.py
@@ -128,9 +128,10 @@ class DiscoItems(ElementBase):
     def del_items(self):
         """Remove all items."""
         self._items = set()
-        for item in self['substanzas']:
-            if isinstance(item, DiscoItem):
-                self.xml.remove(item.xml)
+        items = [i for i in self.iterables if isinstance(i, DiscoItem)]
+        for item in items:
+            self.xml.remove(item.xml)
+            self.iterables.remove(item)
 
 
 class DiscoItem(ElementBase):
diff --git a/sleekxmpp/plugins/xep_0045.py b/sleekxmpp/plugins/xep_0045.py
index b823e76d..1d5f3c83 100644
--- a/sleekxmpp/plugins/xep_0045.py
+++ b/sleekxmpp/plugins/xep_0045.py
@@ -125,11 +125,11 @@ class XEP_0045(BasePlugin):
         self.xep = '0045'
         # load MUC support in presence stanzas
         register_stanza_plugin(Presence, MUCPresence)
-        self.xmpp.registerHandler(Callback('MUCPresence', MatchXMLMask("<presence xmlns='%s' />" % self.xmpp.default_ns), self.handle_groupchat_presence))
-        self.xmpp.registerHandler(Callback('MUCMessage', MatchXMLMask("<message xmlns='%s' type='groupchat'><body/></message>" % self.xmpp.default_ns), self.handle_groupchat_message))
-        self.xmpp.registerHandler(Callback('MUCSubject', MatchXMLMask("<message xmlns='%s' type='groupchat'><subject/></message>" % self.xmpp.default_ns), self.handle_groupchat_subject))
-        self.xmpp.registerHandler(Callback('MUCConfig', MatchXMLMask("<message xmlns='%s' type='groupchat'><x xmlns='http://jabber.org/protocol/muc#user'><status/></x></message>" % self.xmpp.default_ns), self.handle_config_change))
-        self.xmpp.registerHandler(Callback('MUCInvite', MatchXPath("{%s}message/{%s}x/{%s}invite" % (
+        self.xmpp.register_handler(Callback('MUCPresence', MatchXMLMask("<presence xmlns='%s' />" % self.xmpp.default_ns), self.handle_groupchat_presence))
+        self.xmpp.register_handler(Callback('MUCMessage', MatchXMLMask("<message xmlns='%s' type='groupchat'><body/></message>" % self.xmpp.default_ns), self.handle_groupchat_message))
+        self.xmpp.register_handler(Callback('MUCSubject', MatchXMLMask("<message xmlns='%s' type='groupchat'><subject/></message>" % self.xmpp.default_ns), self.handle_groupchat_subject))
+        self.xmpp.register_handler(Callback('MUCConfig', MatchXMLMask("<message xmlns='%s' type='groupchat'><x xmlns='http://jabber.org/protocol/muc#user'><status/></x></message>" % self.xmpp.default_ns), self.handle_config_change))
+        self.xmpp.register_handler(Callback('MUCInvite', MatchXPath("{%s}message/{%s}x/{%s}invite" % (
             self.xmpp.default_ns,
             'http://jabber.org/protocol/muc#user',
             'http://jabber.org/protocol/muc#user')), self.handle_groupchat_invite))
diff --git a/sleekxmpp/plugins/xep_0202/time.py b/sleekxmpp/plugins/xep_0202/time.py
index fe20449d..d5b3af37 100644
--- a/sleekxmpp/plugins/xep_0202/time.py
+++ b/sleekxmpp/plugins/xep_0202/time.py
@@ -48,7 +48,7 @@ class XEP_0202(BasePlugin):
 
             self.local_time = default_local_time
 
-        self.xmpp.registerHandler(
+        self.xmpp.register_handler(
             Callback('Entity Time',
                  StanzaPath('iq/entity_time'),
                  self._handle_time_request))
diff --git a/sleekxmpp/xmlstream/xmlstream.py b/sleekxmpp/xmlstream/xmlstream.py
index 3f87df52..289e3a21 100644
--- a/sleekxmpp/xmlstream/xmlstream.py
+++ b/sleekxmpp/xmlstream/xmlstream.py
@@ -1015,8 +1015,8 @@ class XMLStream(object):
         # and handler classes here.
 
         if name is None:
-            name = 'add_handler_%s' % self.getNewId()
-        self.registerHandler(XMLCallback(name, MatchXMLMask(mask), pointer,
+            name = 'add_handler_%s' % self.new_id()
+        self.register_handler(XMLCallback(name, MatchXMLMask(mask), pointer,
                                          once=disposable, instream=instream))
 
     def register_handler(self, handler, before=None, after=None):