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diff --git a/sleekxmpp/plugins/xep_0172/user_nick.py b/sleekxmpp/plugins/xep_0172/user_nick.py
new file mode 100644
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+++ b/sleekxmpp/plugins/xep_0172/user_nick.py
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+"""
+    SleekXMPP: The Sleek XMPP Library
+    Copyright (C) 2011 Nathanael C. Fritz, Lance J.T. Stout
+    This file is part of SleekXMPP.
+
+    See the file LICENSE for copying permission.
+"""
+
+import logging
+
+from sleekxmpp.stanza.message import Message
+from sleekxmpp.stanza.presence import Presence
+from sleekxmpp.xmlstream import register_stanza_plugin
+from sleekxmpp.xmlstream.handler import Callback
+from sleekxmpp.xmlstream.matcher import MatchXPath
+from sleekxmpp.plugins.base import BasePlugin
+from sleekxmpp.plugins.xep_0172 import stanza, UserNick
+
+
+log = logging.getLogger(__name__)
+
+
+class XEP_0172(BasePlugin):
+
+    """
+    XEP-0172: User Nickname
+    """
+
+    name = 'xep_0172'
+    description = 'XEP-0172: User Nickname'
+    dependencies = set(['xep_0163'])
+    stanza = stanza
+
+    def plugin_init(self):
+        register_stanza_plugin(Message, UserNick)
+        register_stanza_plugin(Presence, UserNick)
+        self.xmpp['xep_0163'].register_pep('user_nick', UserNick)
+
+    def publish_nick(self, nick=None, options=None, ifrom=None, block=True,
+                     callback=None, timeout=None):
+        """
+        Publish the user's current nick.
+
+        Arguments:
+            nick     -- The user nickname to publish.
+            options  -- Optional form of publish options.
+            ifrom    -- Specify the sender's JID.
+            block    -- Specify if the send call will block until a response
+                        is received, or a timeout occurs. Defaults to True.
+            timeout  -- The length of time (in seconds) to wait for a response
+                        before exiting the send call if blocking is used.
+                        Defaults to sleekxmpp.xmlstream.RESPONSE_TIMEOUT
+            callback -- Optional reference to a stream handler function. Will
+                        be executed when a reply stanza is received.
+        """
+        nickname = UserNick()
+        nickname['nick'] = nick
+        return self.xmpp['xep_0163'].publish(nickname,
+                node=UserNick.namespace,
+                options=options,
+                ifrom=ifrom,
+                block=block,
+                callback=callback,
+                timeout=timeout)
+
+    def stop(self, ifrom=None, block=True, callback=None, timeout=None):
+        """
+        Clear existing user nick information to stop notifications.
+
+        Arguments:
+            ifrom    -- Specify the sender's JID.
+            block    -- Specify if the send call will block until a response
+                        is received, or a timeout occurs. Defaults to True.
+            timeout  -- The length of time (in seconds) to wait for a response
+                        before exiting the send call if blocking is used.
+                        Defaults to sleekxmpp.xmlstream.RESPONSE_TIMEOUT
+            callback -- Optional reference to a stream handler function. Will
+                        be executed when a reply stanza is received.
+        """
+        nick = UserNick()
+        return self.xmpp['xep_0163'].publish(nick, 
+                node=UserNick.namespace,
+                ifrom=ifrom,
+                block=block,
+                callback=callback,
+                timeout=timeout)