2 files changed, 8 insertions, 4 deletions
diff --git a/sleekxmpp/xmlstream/handler/base.py b/sleekxmpp/xmlstream/handler/base.py
index 9c704ec6..6ec9b6a3 100644
--- a/sleekxmpp/xmlstream/handler/base.py
+++ b/sleekxmpp/xmlstream/handler/base.py
@@ -42,8 +42,6 @@ class BaseHandler(object):
                        this handler.
             stream  -- The XMLStream instance the handler should monitor.
         """
-        self.checkDelete = self.check_delete
-
         self.name = name
         self.stream = stream
         self._destroy = False
@@ -87,3 +85,8 @@ class BaseHandler(object):
         handlers.
         """
         return self._destroy
+
+
+# To comply with PEP8, method names now use underscores.
+# Deprecated method names are re-mapped for backwards compatibility.
+BaseHandler.checkDelete = BaseHandler.check_delete
diff --git a/sleekxmpp/xmlstream/handler/callback.py b/sleekxmpp/xmlstream/handler/callback.py
index f0a72853..7fadab43 100644
--- a/sleekxmpp/xmlstream/handler/callback.py
+++ b/sleekxmpp/xmlstream/handler/callback.py
@@ -61,7 +61,8 @@ class Callback(BaseHandler):
         Arguments:
             payload -- The matched stanza object.
         """
-        BaseHandler.prerun(self, payload)
+        if self._once:
+            self._destroy = True
         if self._instream:
             self.run(payload, True)
 
@@ -78,7 +79,7 @@ class Callback(BaseHandler):
                         Defaults to False.
         """
         if not self._instream or instream:
-            BaseHandler.run(self, payload)
             self._pointer(payload)
             if self._once:
                 self._destroy = True
+                del self._pointer