Underscore names by default.

Stanza objects now accept the use of underscored names.

The CamelCase versions are still available for backwards compatibility,
but are discouraged.

The property stanza.values now maps to the old getStanzaValues and
setStanzaValues, in addition to _set_stanza_values and
_get_stanza_values.

sleekxmpp/stanza/nick.py

@@ -7,8 +7,7 @@
 """
 
 from sleekxmpp.stanza import Message, Presence
-from sleekxmpp.xmlstream.stanzabase import registerStanzaPlugin
-from sleekxmpp.xmlstream.stanzabase import ElementBase, ET
+from sleekxmpp.xmlstream import ElementBase, ET, register_stanza_plugin
 
 
 class Nick(ElementBase):
@@ -39,9 +38,10 @@ class Nick(ElementBase):
         nick -- A global, friendly or informal name chosen by a user.
 
     Methods:
-        getNick -- Return the nickname in the <nick> element.
-        setNick -- Add a <nick> element with the given nickname.
-        delNick -- Remove the <nick> element.
+        setup    -- Overrides ElementBase.setup.
+        get_nick -- Return the nickname in the <nick> element.
+        set_nick -- Add a <nick> element with the given nickname.
+        del_nick -- Remove the <nick> element.
     """
 
     namespace = 'http://jabber.org/nick/nick'
@@ -49,7 +49,24 @@ class Nick(ElementBase):
     plugin_attrib = name
     interfaces = set(('nick',))
 
-    def setNick(self, nick):
+    def setup(self, xml=None):
+        """
+        Populate the stanza object using an optional XML object.
+
+        Overrides StanzaBase.setup.
+
+        Arguments:
+            xml -- Use an existing XML object for the stanza's values.
+        """
+        # To comply with PEP8, method names now use underscores.
+        # Deprecated method names are re-mapped for backwards compatibility.
+        self.setNick = self.set_nick
+        self.getNick = self.get_nick
+        self.delNick = self.del_nick
+
+        return ElementBase.setup(self, xml)
+
+    def set_nick(self, nick):
         """
         Add a <nick> element with the given nickname.
 
@@ -58,15 +75,15 @@ class Nick(ElementBase):
         """
         self.xml.text = nick
 
-    def getNick(self):
+    def get_nick(self):
         """Return the nickname in the <nick> element."""
         return self.xml.text
 
-    def delNick(self):
+    def del_nick(self):
         """Remove the <nick> element."""
         if self.parent is not None:
             self.parent().xml.remove(self.xml)
 
 
-registerStanzaPlugin(Message, Nick)
-registerStanzaPlugin(Presence, Nick)
+register_stanza_plugin(Message, Nick)
+register_stanza_plugin(Presence, Nick)