[gnome-games/sudoku-tube] No need to be instance attribute

[Zhang Sen <zhangsen src gnome org>]

commit 4b4744c31a8b53920b80ca951a6c26155b6ebd3b
Author: Zhang Sen <zh jesse gmail com>
Date:   Fri Jun 12 11:34:15 2009 +0800

    No need to be instance attribute

 gnome-sudoku/src/lib/main.py |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/gnome-sudoku/src/lib/main.py b/gnome-sudoku/src/lib/main.py
index 8b91dfe..30c5b76 100644
--- a/gnome-sudoku/src/lib/main.py
+++ b/gnome-sudoku/src/lib/main.py
@@ -752,9 +752,9 @@ class TrackerBox (gtk.VBox):
         self.builder = gtk.Builder()
         self.builder.add_from_file(os.path.join(UI_DIR, 'tracker.ui'))
         self.main_ui = main_ui
-        self.vb = self.builder.get_object('vbox1')
-        self.vb.unparent()
-        self.pack_start(self.vb, expand = True, fill = True)
+        vbox = self.builder.get_object('vbox1')
+        vbox.unparent()
+        self.pack_start(vbox, expand = True, fill = True)
         self._setup_actions()
         self._setup_tree()
         self.show_all()