Updated all samples to use 'service' as the object returned from build()
diff --git a/samples/oauth2/appengine/main.py b/samples/oauth2/appengine/main.py
index f037bb8..087a136 100644
--- a/samples/oauth2/appengine/main.py
+++ b/samples/oauth2/appengine/main.py
@@ -67,8 +67,8 @@
     else:
       http = httplib2.Http()
       http = credentials.authorize(http)
-      p = build("buzz", "v1", http=http)
-      activities = p.activities()
+      service = build("buzz", "v1", http=http)
+      activities = service.activities()
       activitylist = activities.list(scope='@consumption',
                                      userId='@me').execute()
       path = os.path.join(os.path.dirname(__file__), 'welcome.html')