[gnome-games/sudoku-tube] Arrange imports per pep8

[Zhang Sen <zhangsen src gnome org>]

commit 956db0f7fa9553ce48153629d622f77a911acba2
Author: Zhang Sen <zh jesse gmail com>
Date:   Tue Jun 30 15:26:27 2009 +0800

    Arrange imports per pep8

 gnome-sudoku/src/lib/gsudoku.py    |    9 ++++++---
 gnome-sudoku/src/lib/number_box.py |    8 +++++---
 gnome-sudoku/src/lib/sudoku.py     |    3 ++-
 3 files changed, 13 insertions(+), 7 deletions(-)
---
diff --git a/gnome-sudoku/src/lib/gsudoku.py b/gnome-sudoku/src/lib/gsudoku.py
index 2fe01b6..96259e2 100644
--- a/gnome-sudoku/src/lib/gsudoku.py
+++ b/gnome-sudoku/src/lib/gsudoku.py
@@ -1,10 +1,13 @@
 # -*- coding: utf-8 -*-
-import gtk, gobject
-import colors
 import math
 import random
-import sudoku
+
+import gtk
+import gobject
+
+import colors
 import number_box
+import sudoku
 
 TRACKER_COLORS = [
     # Use tango colors recommended here:
diff --git a/gnome-sudoku/src/lib/number_box.py b/gnome-sudoku/src/lib/number_box.py
index 434dd74..8cfc9fe 100644
--- a/gnome-sudoku/src/lib/number_box.py
+++ b/gnome-sudoku/src/lib/number_box.py
@@ -1,8 +1,10 @@
 # -*- coding: utf-8 -*-
-#!/usr/bin/python
-
-import gtk, gobject, pango, cairo
 import math
+
+import cairo
+import gobject
+import gtk
+import pango
 from gettext import gettext as _
 
 ERROR_HIGHLIGHT_COLOR = (1.0, 0, 0)
diff --git a/gnome-sudoku/src/lib/sudoku.py b/gnome-sudoku/src/lib/sudoku.py
index e1352bf..06823cb 100644
--- a/gnome-sudoku/src/lib/sudoku.py
+++ b/gnome-sudoku/src/lib/sudoku.py
@@ -1,7 +1,8 @@
 # -*- coding: utf-8 -*-
-import random
 import math
+import random
 import re
+
 from gettext import gettext as _
 
 GROUP_SIZE = 9