diff --git a/Lib/SimpleHTTPServer.py b/Lib/SimpleHTTPServer.py
index eea3243..deedd4b 100644
--- a/Lib/SimpleHTTPServer.py
+++ b/Lib/SimpleHTTPServer.py
@@ -14,7 +14,6 @@
 import posixpath
 import BaseHTTPServer
 import urllib
-import urlparse
 import cgi
 import shutil
 import mimetypes
diff --git a/Lib/ctypes/test/__init__.py b/Lib/ctypes/test/__init__.py
index 372c6e8..60b4975 100644
--- a/Lib/ctypes/test/__init__.py
+++ b/Lib/ctypes/test/__init__.py
@@ -1,4 +1,4 @@
-import glob, os, sys, unittest, getopt, time
+import os, sys, unittest, getopt, time
 
 use_resources = []
 
diff --git a/Lib/ctypes/test/test_checkretval.py b/Lib/ctypes/test/test_checkretval.py
index 28be6c6..d15bd2e 100644
--- a/Lib/ctypes/test/test_checkretval.py
+++ b/Lib/ctypes/test/test_checkretval.py
@@ -1,5 +1,4 @@
 import unittest
-import sys
 
 from ctypes import *
 
diff --git a/Lib/ctypes/test/test_find.py b/Lib/ctypes/test/test_find.py
index 9f61cdb..dc05093 100644
--- a/Lib/ctypes/test/test_find.py
+++ b/Lib/ctypes/test/test_find.py
@@ -1,5 +1,5 @@
 import unittest
-import os, sys
+import sys
 from ctypes import *
 from ctypes.util import find_library
 from ctypes.test import is_resource_enabled
diff --git a/Lib/ctypes/test/test_libc.py b/Lib/ctypes/test/test_libc.py
index 0e14c2f..b204fae 100644
--- a/Lib/ctypes/test/test_libc.py
+++ b/Lib/ctypes/test/test_libc.py
@@ -1,4 +1,3 @@
-import sys, os
 import unittest
 
 from ctypes import *
diff --git a/Lib/ctypes/test/test_numbers.py b/Lib/ctypes/test/test_numbers.py
index 16e69cb..c0732de 100644
--- a/Lib/ctypes/test/test_numbers.py
+++ b/Lib/ctypes/test/test_numbers.py
@@ -1,6 +1,6 @@
 from ctypes import *
 import unittest
-import sys, struct
+import struct
 
 def valid_ranges(*types):
     # given a sequence of numeric types, collect their _type_
diff --git a/Lib/curses/wrapper.py b/Lib/curses/wrapper.py
index 5335204..9f1d867 100644
--- a/Lib/curses/wrapper.py
+++ b/Lib/curses/wrapper.py
@@ -7,7 +7,7 @@
 
 """
 
-import sys, curses
+import curses
 
 def wrapper(func, *args, **kwds):
     """Wrapper function that initializes curses and calls another function,
diff --git a/Lib/distutils/bcppcompiler.py b/Lib/distutils/bcppcompiler.py
index 1ab76c5..c5e5cd2 100644
--- a/Lib/distutils/bcppcompiler.py
+++ b/Lib/distutils/bcppcompiler.py
@@ -14,7 +14,7 @@
 __revision__ = "$Id$"
 
 
-import sys, os
+import os
 from distutils.errors import \
      DistutilsExecError, DistutilsPlatformError, \
      CompileError, LibError, LinkError, UnknownFileError
diff --git a/Lib/distutils/command/bdist_dumb.py b/Lib/distutils/command/bdist_dumb.py
index f899617..2d39922 100644
--- a/Lib/distutils/command/bdist_dumb.py
+++ b/Lib/distutils/command/bdist_dumb.py
@@ -9,7 +9,7 @@
 import os
 from distutils.core import Command
 from distutils.util import get_platform
-from distutils.dir_util import create_tree, remove_tree, ensure_relative
+from distutils.dir_util import remove_tree, ensure_relative
 from distutils.errors import *
 from distutils.sysconfig import get_python_version
 from distutils import log
diff --git a/Lib/distutils/command/bdist_rpm.py b/Lib/distutils/command/bdist_rpm.py
index 72f74f9..83efb8e 100644
--- a/Lib/distutils/command/bdist_rpm.py
+++ b/Lib/distutils/command/bdist_rpm.py
@@ -6,7 +6,6 @@
 __revision__ = "$Id$"
 
 import sys, os
-import glob
 from distutils.core import Command
 from distutils.debug import DEBUG
 from distutils.util import get_platform
diff --git a/Lib/distutils/command/build_scripts.py b/Lib/distutils/command/build_scripts.py
index 7b44264..3ac5b0c 100644
--- a/Lib/distutils/command/build_scripts.py
+++ b/Lib/distutils/command/build_scripts.py
@@ -4,7 +4,7 @@
 
 __revision__ = "$Id$"
 
-import sys, os, re
+import os, re
 from stat import ST_MODE
 from distutils import sysconfig
 from distutils.core import Command
diff --git a/Lib/distutils/command/install.py b/Lib/distutils/command/install.py
index b768663..e4ee680 100644
--- a/Lib/distutils/command/install.py
+++ b/Lib/distutils/command/install.py
@@ -14,7 +14,6 @@
 from distutils.file_util import write_file
 from distutils.util import convert_path, subst_vars, change_root
 from distutils.errors import DistutilsOptionError
-from glob import glob
 
 if sys.version < "2.2":
     WINDOWS_SCHEME = {
diff --git a/Lib/distutils/command/install_headers.py b/Lib/distutils/command/install_headers.py
index 7114eaf..346daaa 100644
--- a/Lib/distutils/command/install_headers.py
+++ b/Lib/distutils/command/install_headers.py
@@ -5,7 +5,6 @@
 
 __revision__ = "$Id$"
 
-import os
 from distutils.core import Command
 
 
diff --git a/Lib/distutils/command/register.py b/Lib/distutils/command/register.py
index d123d32..40d9f20 100644
--- a/Lib/distutils/command/register.py
+++ b/Lib/distutils/command/register.py
@@ -7,7 +7,7 @@
 
 __revision__ = "$Id$"
 
-import sys, os, urllib2, getpass, urlparse
+import os, string, urllib2, getpass, urlparse
 import io, ConfigParser
 
 from distutils.core import Command
diff --git a/Lib/distutils/filelist.py b/Lib/distutils/filelist.py
index 6506c30..8eab0a9 100644
--- a/Lib/distutils/filelist.py
+++ b/Lib/distutils/filelist.py
@@ -8,7 +8,6 @@
 
 import os, re
 import fnmatch
-from glob import glob
 from distutils.util import convert_path
 from distutils.errors import DistutilsTemplateError, DistutilsInternalError
 from distutils import log
diff --git a/Lib/distutils/tests/test_dist.py b/Lib/distutils/tests/test_dist.py
index 23506b5..91acf45 100644
--- a/Lib/distutils/tests/test_dist.py
+++ b/Lib/distutils/tests/test_dist.py
@@ -3,10 +3,8 @@
 import distutils.cmd
 import distutils.dist
 import os
-import shutil
 import io
 import sys
-import tempfile
 import unittest
 
 from test.test_support import TESTFN
diff --git a/Lib/distutils/tests/test_sysconfig.py b/Lib/distutils/tests/test_sysconfig.py
index 770b7c3..d56f7e9 100644
--- a/Lib/distutils/tests/test_sysconfig.py
+++ b/Lib/distutils/tests/test_sysconfig.py
@@ -2,7 +2,6 @@
 
 from distutils import sysconfig
 import os
-import sys
 import unittest
 
 from test.test_support import TESTFN
diff --git a/Lib/distutils/unixccompiler.py b/Lib/distutils/unixccompiler.py
index ee975e1..25a042d 100644
--- a/Lib/distutils/unixccompiler.py
+++ b/Lib/distutils/unixccompiler.py
@@ -16,7 +16,6 @@
 __revision__ = "$Id$"
 
 import os, sys
-from copy import copy
 
 from distutils import sysconfig
 from distutils.dep_util import newer
diff --git a/Lib/email/base64mime.py b/Lib/email/base64mime.py
index cff558e..c60f8db 100644
--- a/Lib/email/base64mime.py
+++ b/Lib/email/base64mime.py
@@ -35,7 +35,6 @@
     'header_length',
     ]
 
-import re
 
 from base64 import b64encode
 from binascii import b2a_base64, a2b_base64
diff --git a/Lib/httplib.py b/Lib/httplib.py
index bb873e4..638a92b 100644
--- a/Lib/httplib.py
+++ b/Lib/httplib.py
@@ -66,7 +66,6 @@
 Req-sent-unread-response       _CS_REQ_SENT       <response_class>
 """
 
-import errno
 import io
 import mimetools
 import socket
diff --git a/Lib/idlelib/MultiCall.py b/Lib/idlelib/MultiCall.py
index c59ccfe..f2e3887 100644
--- a/Lib/idlelib/MultiCall.py
+++ b/Lib/idlelib/MultiCall.py
@@ -30,7 +30,6 @@
 """
 
 import sys
-import os
 import re
 import Tkinter
 
diff --git a/Lib/idlelib/RemoteDebugger.py b/Lib/idlelib/RemoteDebugger.py
index 46582d1..d8662bb 100644
--- a/Lib/idlelib/RemoteDebugger.py
+++ b/Lib/idlelib/RemoteDebugger.py
@@ -20,7 +20,6 @@
 
 """
 
-import sys
 import types
 from idlelib import rpc
 from idlelib import Debugger
diff --git a/Lib/idlelib/TreeWidget.py b/Lib/idlelib/TreeWidget.py
index 0009de8..04e16a2 100644
--- a/Lib/idlelib/TreeWidget.py
+++ b/Lib/idlelib/TreeWidget.py
@@ -15,7 +15,6 @@
 # - optimize tree redraw after expand of subnode
 
 import os
-import sys
 from Tkinter import *
 import imp
 
diff --git a/Lib/idlelib/UndoDelegator.py b/Lib/idlelib/UndoDelegator.py
index cdda142..57b02df 100644
--- a/Lib/idlelib/UndoDelegator.py
+++ b/Lib/idlelib/UndoDelegator.py
@@ -1,4 +1,3 @@
-import sys
 import string
 from Tkinter import *
 
diff --git a/Lib/idlelib/keybindingDialog.py b/Lib/idlelib/keybindingDialog.py
index 7f4cc91..f326b6f 100644
--- a/Lib/idlelib/keybindingDialog.py
+++ b/Lib/idlelib/keybindingDialog.py
@@ -3,7 +3,7 @@
 """
 from Tkinter import *
 import tkMessageBox
-import string, os
+import string
 
 class GetKeysDialog(Toplevel):
     def __init__(self,parent,title,action,currentKeySequences):
diff --git a/Lib/idlelib/run.py b/Lib/idlelib/run.py
index 407e543..63880d6 100644
--- a/Lib/idlelib/run.py
+++ b/Lib/idlelib/run.py
@@ -1,5 +1,4 @@
 import sys
-import os
 import linecache
 import time
 import socket
diff --git a/Lib/lib-tk/tkSimpleDialog.py b/Lib/lib-tk/tkSimpleDialog.py
index f4ed77a..573c3a3 100644
--- a/Lib/lib-tk/tkSimpleDialog.py
+++ b/Lib/lib-tk/tkSimpleDialog.py
@@ -26,7 +26,6 @@
 '''
 
 from Tkinter import *
-import os
 
 class Dialog(Toplevel):
 
diff --git a/Lib/logging/handlers.py b/Lib/logging/handlers.py
index 850e3bd..4645f3e 100644
--- a/Lib/logging/handlers.py
+++ b/Lib/logging/handlers.py
@@ -24,8 +24,7 @@
 To use, simply 'import logging' and log away!
 """
 
-import sys, logging, socket, os, struct, time, glob
-import pickle
+import logging, socket, os, pickle, struct, time, glob
 from stat import ST_DEV, ST_INO
 
 try:
diff --git a/Lib/ntpath.py b/Lib/ntpath.py
index c4a4ac5..59f1402 100644
--- a/Lib/ntpath.py
+++ b/Lib/ntpath.py
@@ -6,8 +6,8 @@
 """
 
 import os
-import stat
 import sys
+import stat
 import genericpath
 from genericpath import *
 
diff --git a/Lib/plat-mac/MiniAEFrame.py b/Lib/plat-mac/MiniAEFrame.py
index eed7428..e2f7cec 100644
--- a/Lib/plat-mac/MiniAEFrame.py
+++ b/Lib/plat-mac/MiniAEFrame.py
@@ -6,7 +6,6 @@
         only suitable for the simplest of AppleEvent servers.
 """
 
-import sys
 import traceback
 import MacOS
 from Carbon import AE
diff --git a/Lib/plat-mac/aepack.py b/Lib/plat-mac/aepack.py
index 5f8efd2..b030140 100644
--- a/Lib/plat-mac/aepack.py
+++ b/Lib/plat-mac/aepack.py
@@ -20,7 +20,6 @@
 import io
 import aetypes
 from aetypes import mkenum, ObjectSpecifier
-import os
 
 # These ones seem to be missing from AppleEvents
 # (they're in AERegistry.h)
diff --git a/Lib/plat-mac/bgenlocations.py b/Lib/plat-mac/bgenlocations.py
index 041a6ff..88e8f67 100644
--- a/Lib/plat-mac/bgenlocations.py
+++ b/Lib/plat-mac/bgenlocations.py
@@ -5,7 +5,7 @@
 # but mac-style for MacPython, whether running on OS9 or OSX.
 #
 
-import sys, os
+import os
 
 Error = "bgenlocations.Error"
 #
diff --git a/Lib/plat-mac/macostools.py b/Lib/plat-mac/macostools.py
index 67d32e7..80c3727 100644
--- a/Lib/plat-mac/macostools.py
+++ b/Lib/plat-mac/macostools.py
@@ -7,9 +7,7 @@
 from Carbon import Res
 from Carbon import File, Files
 import os
-import sys
 import MacOS
-import time
 try:
     openrf = MacOS.openrf
 except AttributeError:
diff --git a/Lib/sqlite3/test/hooks.py b/Lib/sqlite3/test/hooks.py
index d67028f..28f2404 100644
--- a/Lib/sqlite3/test/hooks.py
+++ b/Lib/sqlite3/test/hooks.py
@@ -21,7 +21,7 @@
 #    misrepresented as being the original software.
 # 3. This notice may not be removed or altered from any source distribution.
 
-import os, unittest
+import unittest
 import sqlite3 as sqlite
 
 class CollationTests(unittest.TestCase):
diff --git a/Lib/ssl.py b/Lib/ssl.py
index c229cd3..968f9a0 100644
--- a/Lib/ssl.py
+++ b/Lib/ssl.py
@@ -54,7 +54,7 @@
 PROTOCOL_TLSv1
 """
 
-import os, sys, textwrap
+import textwrap
 
 import _ssl             # if we can't import it, let the error propagate
 
diff --git a/Lib/test/fork_wait.py b/Lib/test/fork_wait.py
index 38e2b4f..678e3c4 100644
--- a/Lib/test/fork_wait.py
+++ b/Lib/test/fork_wait.py
@@ -10,7 +10,6 @@
 """
 
 import os, sys, time, thread, unittest
-from test.test_support import TestSkipped
 
 LONGSLEEP = 2
 SHORTSLEEP = 0.5
diff --git a/Lib/test/list_tests.py b/Lib/test/list_tests.py
index 49283e4..4ffa668 100644
--- a/Lib/test/list_tests.py
+++ b/Lib/test/list_tests.py
@@ -5,7 +5,6 @@
 import sys
 import os
 
-import unittest
 from test import test_support, seq_tests
 
 def CmpToKey(mycmp):
diff --git a/Lib/test/seq_tests.py b/Lib/test/seq_tests.py
index 81fe627..a3815e2 100644
--- a/Lib/test/seq_tests.py
+++ b/Lib/test/seq_tests.py
@@ -3,7 +3,6 @@
 """
 
 import unittest
-from test import test_support
 import sys
 
 # Various iterables
diff --git a/Lib/test/test___all__.py b/Lib/test/test___all__.py
index 6e844e7..a2a2519 100644
--- a/Lib/test/test___all__.py
+++ b/Lib/test/test___all__.py
@@ -1,5 +1,5 @@
 import unittest
-from test.test_support import verbose, run_unittest
+from test.test_support import run_unittest
 import sys
 
 
diff --git a/Lib/test/test_abc.py b/Lib/test/test_abc.py
index 80b0123..7a932fc 100644
--- a/Lib/test/test_abc.py
+++ b/Lib/test/test_abc.py
@@ -3,7 +3,6 @@
 
 """Unit tests for abc.py."""
 
-import sys
 import unittest
 from test import test_support
 
diff --git a/Lib/test/test_applesingle.py b/Lib/test/test_applesingle.py
index 96450e3..9dfcb19 100644
--- a/Lib/test/test_applesingle.py
+++ b/Lib/test/test_applesingle.py
@@ -5,7 +5,6 @@
 import Carbon.File
 import MacOS
 import os
-import sys
 from test import test_support
 import struct
 import applesingle
diff --git a/Lib/test/test_class.py b/Lib/test/test_class.py
index ab44a4c..730826d 100644
--- a/Lib/test/test_class.py
+++ b/Lib/test/test_class.py
@@ -1,7 +1,6 @@
 "Test the functionality of Python classes implementing operators."
 
 import unittest
-import sys
 
 from test import test_support
 
diff --git a/Lib/test/test_cmd.py b/Lib/test/test_cmd.py
index 3ed6322..2c77931 100644
--- a/Lib/test/test_cmd.py
+++ b/Lib/test/test_cmd.py
@@ -5,7 +5,6 @@
 """
 
 
-from test import test_support
 import cmd
 import sys
 import trace
diff --git a/Lib/test/test_compare.py b/Lib/test/test_compare.py
index 15fe3c2..de32f3c 100644
--- a/Lib/test/test_compare.py
+++ b/Lib/test/test_compare.py
@@ -1,4 +1,3 @@
-import sys
 import unittest
 from test import test_support
 
diff --git a/Lib/test/test_copy.py b/Lib/test/test_copy.py
index cf94593..8b50e47 100644
--- a/Lib/test/test_copy.py
+++ b/Lib/test/test_copy.py
@@ -1,6 +1,5 @@
 """Unit tests for the copy module."""
 
-import sys
 import copy
 import copy_reg
 
diff --git a/Lib/test/test_datetime.py b/Lib/test/test_datetime.py
index 8ac7160..e768a9c 100644
--- a/Lib/test/test_datetime.py
+++ b/Lib/test/test_datetime.py
@@ -4,7 +4,6 @@
 """
 
 import os
-import sys
 import pickle
 import unittest
 
diff --git a/Lib/test/test_dbm.py b/Lib/test/test_dbm.py
index 806125f..4c97a4c 100755
--- a/Lib/test/test_dbm.py
+++ b/Lib/test/test_dbm.py
@@ -3,7 +3,6 @@
    Roger E. Masse
 """
 import os
-import random
 import dbm
 from dbm import error
 from test.test_support import verbose, verify, TestSkipped, TESTFN
diff --git a/Lib/test/test_dis.py b/Lib/test/test_dis.py
index f135780..ceb7509 100644
--- a/Lib/test/test_dis.py
+++ b/Lib/test/test_dis.py
@@ -1,6 +1,6 @@
 # Minimal tests for dis module
 
-from test.test_support import verbose, run_unittest
+from test.test_support import run_unittest
 import unittest
 import sys
 import dis
diff --git a/Lib/test/test_dummy_threading.py b/Lib/test/test_dummy_threading.py
index 90bf6e0..6f16241 100644
--- a/Lib/test/test_dummy_threading.py
+++ b/Lib/test/test_dummy_threading.py
@@ -3,7 +3,6 @@
 # Create a bunch of threads, let each do some work, wait until all are done
 
 from test.test_support import verbose
-import random
 import dummy_threading as _threading
 import time
 
diff --git a/Lib/test/test_email.py b/Lib/test/test_email.py
index 736c393..e12cbd3 100644
--- a/Lib/test/test_email.py
+++ b/Lib/test/test_email.py
@@ -1,7 +1,6 @@
 # Copyright (C) 2001-2007 Python Software Foundation
 # email package unit tests
 
-import unittest
 # The specific tests now live in Lib/email/test
 from email.test.test_email import suite
 from test import test_support
diff --git a/Lib/test/test_eof.py b/Lib/test/test_eof.py
index 1187d07..4284d11 100644
--- a/Lib/test/test_eof.py
+++ b/Lib/test/test_eof.py
@@ -1,7 +1,6 @@
 #! /usr/bin/env python
 """test script for a few new invalid token catches"""
 
-import os
 import unittest
 from test import test_support
 
diff --git a/Lib/test/test_extcall.py b/Lib/test/test_extcall.py
index 596a3ef..bad1440 100644
--- a/Lib/test/test_extcall.py
+++ b/Lib/test/test_extcall.py
@@ -1,4 +1,4 @@
-from test.test_support import verify, verbose, TestFailed, sortdict
+from test.test_support import verify, TestFailed, sortdict
 from collections import UserDict, UserList
 
 def e(a, b):
diff --git a/Lib/test/test_fileinput.py b/Lib/test/test_fileinput.py
index 2ba3bc3..aa38527 100644
--- a/Lib/test/test_fileinput.py
+++ b/Lib/test/test_fileinput.py
@@ -6,7 +6,7 @@
 import unittest
 from test.test_support import verbose, TESTFN, run_unittest
 from test.test_support import unlink as safe_unlink
-import sys, os, re
+import sys, re
 from io import StringIO
 from fileinput import FileInput, hook_encoded
 
diff --git a/Lib/test/test_fractions.py b/Lib/test/test_fractions.py
index dacb587..21c1761 100644
--- a/Lib/test/test_fractions.py
+++ b/Lib/test/test_fractions.py
@@ -1,7 +1,7 @@
 """Tests for Lib/fractions.py."""
 
 from decimal import Decimal
-from test.test_support import run_unittest, verbose
+from test.test_support import run_unittest
 import math
 import operator
 import fractions
diff --git a/Lib/test/test_getargs2.py b/Lib/test/test_getargs2.py
index 9172576..4253141 100644
--- a/Lib/test/test_getargs2.py
+++ b/Lib/test/test_getargs2.py
@@ -1,8 +1,7 @@
 import unittest
 from test import test_support
-import sys
 
-import warnings, re
+import warnings
 warnings.filterwarnings("ignore",
                         category=DeprecationWarning,
                         message=".*integer argument expected, got float",
diff --git a/Lib/test/test_gzip.py b/Lib/test/test_gzip.py
index 31000df..08f7f3f 100644
--- a/Lib/test/test_gzip.py
+++ b/Lib/test/test_gzip.py
@@ -4,7 +4,7 @@
 
 import unittest
 from test import test_support
-import sys, os
+import os
 import gzip
 
 
diff --git a/Lib/test/test_htmlparser.py b/Lib/test/test_htmlparser.py
index b408a18..a4f2c34 100755
--- a/Lib/test/test_htmlparser.py
+++ b/Lib/test/test_htmlparser.py
@@ -2,7 +2,6 @@
 
 import HTMLParser
 import pprint
-import sys
 import unittest
 from test import test_support
 
diff --git a/Lib/test/test_httplib.py b/Lib/test/test_httplib.py
index 7e5a8a5..4caf996 100644
--- a/Lib/test/test_httplib.py
+++ b/Lib/test/test_httplib.py
@@ -1,6 +1,5 @@
 import httplib
 import io
-import sys
 import socket
 
 from unittest import TestCase
diff --git a/Lib/test/test_imp.py b/Lib/test/test_imp.py
index 3b0a13d..13a3bfd 100644
--- a/Lib/test/test_imp.py
+++ b/Lib/test/test_imp.py
@@ -1,5 +1,4 @@
 import imp
-import thread
 import unittest
 from test import test_support
 
diff --git a/Lib/test/test_index.py b/Lib/test/test_index.py
index 9a22020..71cfb15 100644
--- a/Lib/test/test_index.py
+++ b/Lib/test/test_index.py
@@ -1,7 +1,6 @@
 import unittest
 from test import test_support
 import operator
-import sys
 maxsize = test_support.MAX_Py_ssize_t
 minsize = -maxsize-1
 
diff --git a/Lib/test/test_list.py b/Lib/test/test_list.py
index 5b84a42..b3b2195 100644
--- a/Lib/test/test_list.py
+++ b/Lib/test/test_list.py
@@ -1,4 +1,3 @@
-import unittest
 import sys
 from test import test_support, list_tests
 
diff --git a/Lib/test/test_minidom.py b/Lib/test/test_minidom.py
index d1a72bd..9ea60a9 100644
--- a/Lib/test/test_minidom.py
+++ b/Lib/test/test_minidom.py
@@ -3,7 +3,6 @@
 import os
 import sys
 import pickle
-import traceback
 from io import StringIO
 from test.test_support import verbose, run_unittest, TestSkipped
 import unittest
@@ -791,6 +790,14 @@
                 "testNormalize -- single empty node removed")
         doc.unlink()
 
+    def testBug1433694(self):
+        doc = parseString("<o><i/>t</o>")
+        node = doc.documentElement
+        node.childNodes[1].nodeValue = ""
+        node.normalize()
+        self.confirm(node.childNodes[-1].nextSibling == None,
+                     "Final child's .nextSibling should be None")
+
     def testSiblings(self):
         doc = parseString("<doc><?pi?>text?<elm/></doc>")
         root = doc.documentElement
diff --git a/Lib/test/test_module.py b/Lib/test/test_module.py
index d091c6b..35c765e 100644
--- a/Lib/test/test_module.py
+++ b/Lib/test/test_module.py
@@ -1,6 +1,6 @@
 # Test the module type
 import unittest
-from test.test_support import verbose, run_unittest
+from test.test_support import run_unittest
 
 import sys
 ModuleType = type(sys)
diff --git a/Lib/test/test_modulefinder.py b/Lib/test/test_modulefinder.py
index 3bc22ab..80c06d7 100644
--- a/Lib/test/test_modulefinder.py
+++ b/Lib/test/test_modulefinder.py
@@ -1,5 +1,5 @@
 import __future__
-import sys, os
+import os
 import unittest
 import distutils.dir_util
 import tempfile
diff --git a/Lib/test/test_multibytecodec_support.py b/Lib/test/test_multibytecodec_support.py
index 6b67057..42df9d7 100644
--- a/Lib/test/test_multibytecodec_support.py
+++ b/Lib/test/test_multibytecodec_support.py
@@ -4,7 +4,7 @@
 #   Common Unittest Routines for CJK codecs
 #
 
-import sys, codecs, os.path
+import sys, codecs
 import unittest, re
 from test import test_support
 from io import BytesIO
diff --git a/Lib/test/test_optparse.py b/Lib/test/test_optparse.py
index 1cfdd50..71de869 100644
--- a/Lib/test/test_optparse.py
+++ b/Lib/test/test_optparse.py
@@ -15,7 +15,6 @@
 import unittest
 
 from io import StringIO
-from pprint import pprint
 from test import test_support
 
 
diff --git a/Lib/test/test_ossaudiodev.py b/Lib/test/test_ossaudiodev.py
index 97d5989..8f9bf6f 100644
--- a/Lib/test/test_ossaudiodev.py
+++ b/Lib/test/test_ossaudiodev.py
@@ -1,14 +1,11 @@
 from test import test_support
 test_support.requires('audio')
 
-from test.test_support import verbose, findfile, TestSkipped
+from test.test_support import findfile, TestSkipped
 
 import errno
-import fcntl
 import ossaudiodev
-import os
 import sys
-import select
 import sunaudio
 import time
 import audioop
diff --git a/Lib/test/test_pickle.py b/Lib/test/test_pickle.py
index f54381f..aa09a6a 100644
--- a/Lib/test/test_pickle.py
+++ b/Lib/test/test_pickle.py
@@ -1,5 +1,4 @@
 import pickle
-import unittest
 import io
 
 from test import test_support
diff --git a/Lib/test/test_pkg.py b/Lib/test/test_pkg.py
index 630956d..dcc7433 100644
--- a/Lib/test/test_pkg.py
+++ b/Lib/test/test_pkg.py
@@ -4,7 +4,6 @@
 import os
 import tempfile
 import textwrap
-import traceback
 import unittest
 from test import test_support
 
diff --git a/Lib/test/test_plistlib.py b/Lib/test/test_plistlib.py
index 5c6a059..883b01f 100644
--- a/Lib/test/test_plistlib.py
+++ b/Lib/test/test_plistlib.py
@@ -3,7 +3,6 @@
 import unittest
 import plistlib
 import os
-import time
 import datetime
 from test import test_support
 
diff --git a/Lib/test/test_poll.py b/Lib/test/test_poll.py
index a6110e6..cd9bfb0 100644
--- a/Lib/test/test_poll.py
+++ b/Lib/test/test_poll.py
@@ -1,6 +1,6 @@
 # Test case for the os.poll() function
 
-import sys, os, select, random, unittest
+import os, select, random, unittest
 from test.test_support import TestSkipped, TESTFN, run_unittest
 
 try:
diff --git a/Lib/test/test_posix.py b/Lib/test/test_posix.py
index efd5fb0..13f8f9e 100644
--- a/Lib/test/test_posix.py
+++ b/Lib/test/test_posix.py
@@ -9,7 +9,6 @@
 
 import time
 import os
-import sys
 import unittest
 import warnings
 warnings.filterwarnings('ignore', '.* potential security risk .*',
diff --git a/Lib/test/test_pyclbr.py b/Lib/test/test_pyclbr.py
index f041823..c96ae6d 100644
--- a/Lib/test/test_pyclbr.py
+++ b/Lib/test/test_pyclbr.py
@@ -3,7 +3,7 @@
    Nick Mathewson
 '''
 from test.test_support import run_unittest
-import unittest, sys
+import sys
 from types import FunctionType, MethodType, BuiltinFunctionType
 import pyclbr
 from unittest import TestCase
diff --git a/Lib/test/test_resource.py b/Lib/test/test_resource.py
index 86440b5..b66caf8 100644
--- a/Lib/test/test_resource.py
+++ b/Lib/test/test_resource.py
@@ -1,7 +1,6 @@
 import unittest
 from test import test_support
 
-import os
 import resource
 import time
 
diff --git a/Lib/test/test_rfc822.py b/Lib/test/test_rfc822.py
index b563c9c..1f5dd64 100644
--- a/Lib/test/test_rfc822.py
+++ b/Lib/test/test_rfc822.py
@@ -1,5 +1,4 @@
 import rfc822
-import sys
 import unittest
 from test import test_support
 
diff --git a/Lib/test/test_scriptpackages.py b/Lib/test/test_scriptpackages.py
index a2e03f9..ee14be2 100644
--- a/Lib/test/test_scriptpackages.py
+++ b/Lib/test/test_scriptpackages.py
@@ -1,9 +1,6 @@
 # Copyright (C) 2003 Python Software Foundation
 
 import unittest
-import os
-import sys
-import tempfile
 from test import test_support
 import aetools
 
diff --git a/Lib/test/test_sgmllib.py b/Lib/test/test_sgmllib.py
index f0f8ad6..374b921 100644
--- a/Lib/test/test_sgmllib.py
+++ b/Lib/test/test_sgmllib.py
@@ -1,4 +1,3 @@
-import htmlentitydefs
 import pprint
 import re
 import sgmllib
@@ -116,7 +115,7 @@
         try:
             events = self.get_events(source)
         except:
-            import sys
+            #import sys
             #print >>sys.stderr, pprint.pformat(self.events)
             raise
         if events != expected_events:
diff --git a/Lib/test/test_site.py b/Lib/test/test_site.py
index 4624ea6..b80d6e6 100644
--- a/Lib/test/test_site.py
+++ b/Lib/test/test_site.py
@@ -5,12 +5,11 @@
 
 """
 import unittest
-from test.test_support import TestSkipped, TestFailed, run_unittest, TESTFN
+from test.test_support import TestSkipped, run_unittest, TESTFN
 import builtins
 import os
 import sys
 import encodings
-import tempfile
 # Need to make sure to not import 'site' if someone specified ``-S`` at the
 # command-line.  Detect this by just making sure 'site' has not been imported
 # already.
diff --git a/Lib/test/test_socketserver.py b/Lib/test/test_socketserver.py
index 0fccdd9..69f0b53 100644
--- a/Lib/test/test_socketserver.py
+++ b/Lib/test/test_socketserver.py
@@ -9,7 +9,6 @@
 import select
 import time
 import threading
-from functools import wraps
 import unittest
 import SocketServer
 
diff --git a/Lib/test/test_sqlite.py b/Lib/test/test_sqlite.py
index f033772..c1523e1 100644
--- a/Lib/test/test_sqlite.py
+++ b/Lib/test/test_sqlite.py
@@ -1,5 +1,4 @@
 from test.test_support import run_unittest, TestSkipped
-import unittest
 
 try:
     import _sqlite3
diff --git a/Lib/test/test_strftime.py b/Lib/test/test_strftime.py
index c6db3dd..0870134 100755
--- a/Lib/test/test_strftime.py
+++ b/Lib/test/test_strftime.py
@@ -2,7 +2,7 @@
 
 # Sanity checker for time.strftime
 
-import time, calendar, sys, os, re
+import time, calendar, sys, re
 from test.test_support import verbose
 
 def main():
diff --git a/Lib/test/test_support.py b/Lib/test/test_support.py
index 0fd5d88..ba36448 100644
--- a/Lib/test/test_support.py
+++ b/Lib/test/test_support.py
@@ -10,7 +10,6 @@
 import os
 import os.path
 import warnings
-import types
 import unittest
 
 class Error(Exception):
diff --git a/Lib/test/test_tuple.py b/Lib/test/test_tuple.py
index 1da0ef3..62c5d71 100644
--- a/Lib/test/test_tuple.py
+++ b/Lib/test/test_tuple.py
@@ -1,4 +1,3 @@
-import unittest
 from test import test_support, seq_tests
 
 class TupleTest(seq_tests.CommonTest):
diff --git a/Lib/test/test_unpack.py b/Lib/test/test_unpack.py
index 75033ed..a90b5e5 100644
--- a/Lib/test/test_unpack.py
+++ b/Lib/test/test_unpack.py
@@ -122,7 +122,6 @@
 __test__ = {'doctests' : doctests}
 
 def test_main(verbose=False):
-    import sys
     from test import test_support
     from test import test_unpack
     test_support.run_doctest(test_unpack, verbose)
diff --git a/Lib/test/test_urllib.py b/Lib/test/test_urllib.py
index c233e35..d58414c 100644
--- a/Lib/test/test_urllib.py
+++ b/Lib/test/test_urllib.py
@@ -8,10 +8,6 @@
 import os
 import mimetools
 import tempfile
-import ftplib
-import threading
-import socket
-import time
 
 def hexescape(char):
     """Escape char as RFC 2396 specifies"""
diff --git a/Lib/test/test_urllib2.py b/Lib/test/test_urllib2.py
index 199119a..6ceec06 100644
--- a/Lib/test/test_urllib2.py
+++ b/Lib/test/test_urllib2.py
@@ -1,7 +1,7 @@
 import unittest
 from test import test_support
 
-import os, socket
+import os
 import io
 
 import urllib2
@@ -584,7 +584,7 @@
             self.assertEqual(int(headers["Content-length"]), len(data))
 
     def test_file(self):
-        import time, rfc822, socket
+        import rfc822, socket
         h = urllib2.FileHandler()
         o = h.parent = MockOpener()
 
@@ -988,7 +988,7 @@
     def _test_basic_auth(self, opener, auth_handler, auth_header,
                          realm, http_handler, password_manager,
                          request_url, protected_url):
-        import base64, httplib
+        import base64
         user, password = "wile", "coyote"
 
         # .add_password() fed through to password manager
diff --git a/Lib/test/test_urllib2_localnet.py b/Lib/test/test_urllib2_localnet.py
index f0b5dea..663330b 100644
--- a/Lib/test/test_urllib2_localnet.py
+++ b/Lib/test/test_urllib2_localnet.py
@@ -1,6 +1,5 @@
 #!/usr/bin/env python
 
-import sys
 import threading
 import urlparse
 import urllib2
diff --git a/Lib/test/test_userdict.py b/Lib/test/test_userdict.py
index 643caf9..3a8a8b4 100644
--- a/Lib/test/test_userdict.py
+++ b/Lib/test/test_userdict.py
@@ -1,6 +1,5 @@
 # Check every path through every method of UserDict
 
-import unittest
 from test import test_support, mapping_tests
 import collections
 
diff --git a/Lib/test/test_userlist.py b/Lib/test/test_userlist.py
index 9d012e0..a0daa4e 100644
--- a/Lib/test/test_userlist.py
+++ b/Lib/test/test_userlist.py
@@ -1,7 +1,6 @@
 # Check every path through every method of UserList
 
 from collections import UserList
-import unittest
 from test import test_support, list_tests
 
 class UserListTest(list_tests.CommonTest):
diff --git a/Lib/test/test_userstring.py b/Lib/test/test_userstring.py
index a0fefc3..e8fb135 100755
--- a/Lib/test/test_userstring.py
+++ b/Lib/test/test_userstring.py
@@ -2,7 +2,6 @@
 # UserString is a wrapper around the native builtin string type.
 # UserString instances should behave similar to builtin string objects.
 
-import unittest
 import string
 from test import test_support, string_tests
 
diff --git a/Lib/test/test_whichdb.py b/Lib/test/test_whichdb.py
index 7746329..e63eb0f 100644
--- a/Lib/test/test_whichdb.py
+++ b/Lib/test/test_whichdb.py
@@ -8,7 +8,6 @@
 import unittest
 import whichdb
 import anydbm
-import tempfile
 import glob
 from test.test_anydbm import delete_files, dbm_iterator
 
diff --git a/Lib/test/test_xml_etree.py b/Lib/test/test_xml_etree.py
index 1a6b7f3..8470584 100644
--- a/Lib/test/test_xml_etree.py
+++ b/Lib/test/test_xml_etree.py
@@ -2,7 +2,8 @@
 # all included components work as they should.  For a more extensive
 # test suite, see the selftest script in the ElementTree distribution.
 
-import doctest, sys
+import doctest
+import sys
 
 from test import test_support
 
diff --git a/Lib/test/test_xml_etree_c.py b/Lib/test/test_xml_etree_c.py
index c8eec40..80e91d1 100644
--- a/Lib/test/test_xml_etree_c.py
+++ b/Lib/test/test_xml_etree_c.py
@@ -1,6 +1,7 @@
 # xml.etree test for cElementTree
 
-import doctest, sys
+import doctest
+import sys
 
 from test import test_support
 
diff --git a/Lib/test/test_xmlrpc.py b/Lib/test/test_xmlrpc.py
index 092be51..0836533 100644
--- a/Lib/test/test_xmlrpc.py
+++ b/Lib/test/test_xmlrpc.py
@@ -26,10 +26,6 @@
                         (2005, 2, 10, 11, 41, 23, 0, 1, -1)),
           'datetime3': xmlrpclib.DateTime(
                         datetime.datetime(2005, 2, 10, 11, 41, 23)),
-          'datetime4': xmlrpclib.DateTime(
-                        datetime.date(2005, 2, 10)),
-          'datetime5': xmlrpclib.DateTime(
-                        datetime.time(11, 41, 23)),
           }]
 
 class XMLRPCTestCase(unittest.TestCase):
@@ -53,34 +49,14 @@
         (newdt,), m = xmlrpclib.loads(s, use_datetime=0)
         self.assertEquals(newdt, xmlrpclib.DateTime('20050210T11:41:23'))
 
-    def test_dump_bare_date(self):
-        # This checks that an unwrapped datetime.date object can be handled
-        # by the marshalling code.  This can't be done via test_dump_load()
-        # since the unmarshaller produces a datetime object
-        d = datetime.datetime(2005, 2, 10, 11, 41, 23).date()
-        s = xmlrpclib.dumps((d,))
-        (newd,), m = xmlrpclib.loads(s, use_datetime=1)
-        self.assertEquals(newd.date(), d)
-        self.assertEquals(newd.time(), datetime.time(0, 0, 0))
-        self.assertEquals(m, None)
-
-        (newdt,), m = xmlrpclib.loads(s, use_datetime=0)
-        self.assertEquals(newdt, xmlrpclib.DateTime('20050210T00:00:00'))
-
-    def test_dump_bare_time(self):
-        # This checks that an unwrapped datetime.time object can be handled
-        # by the marshalling code.  This can't be done via test_dump_load()
-        # since the unmarshaller produces a datetime object
-        t = datetime.datetime(2005, 2, 10, 11, 41, 23).time()
-        s = xmlrpclib.dumps((t,))
-        (newt,), m = xmlrpclib.loads(s, use_datetime=1)
-        today = datetime.datetime.now().date().strftime("%Y%m%d")
-        self.assertEquals(newt.time(), t)
-        self.assertEquals(newt.date(), datetime.datetime.now().date())
-        self.assertEquals(m, None)
-
-        (newdt,), m = xmlrpclib.loads(s, use_datetime=0)
-        self.assertEquals(newdt, xmlrpclib.DateTime('%sT11:41:23'%today))
+    def test_cmp_datetime_DateTime(self):
+        now = datetime.datetime.now()
+        dt = xmlrpclib.DateTime(now.timetuple())
+        self.assert_(dt == now)
+        self.assert_(now == dt)
+        then = now + datetime.timedelta(seconds=4)
+        self.assert_(then >= dt)
+        self.assert_(dt < then)
 
     def test_bug_1164912 (self):
         d = xmlrpclib.DateTime()
@@ -201,21 +177,6 @@
         t = xmlrpclib.DateTime(d)
         self.assertEqual(str(t), '20070102T03:04:05')
 
-    def test_datetime_date(self):
-        d = datetime.date(2007,9,8)
-        t = xmlrpclib.DateTime(d)
-        self.assertEqual(str(t), '20070908T00:00:00')
-
-    def test_datetime_time(self):
-        d = datetime.time(13,17,19)
-        # allow for date rollover by checking today's or tomorrow's dates
-        dd1 = datetime.datetime.now().date()
-        dd2 = dd1 + datetime.timedelta(days=1)
-        vals = (dd1.strftime('%Y%m%dT13:17:19'),
-                dd2.strftime('%Y%m%dT13:17:19'))
-        t = xmlrpclib.DateTime(d)
-        self.assertEqual(str(t) in vals, True)
-
     def test_repr(self):
         d = datetime.datetime(2007,1,2,3,4,5)
         t = xmlrpclib.DateTime(d)
diff --git a/Lib/xml/dom/minidom.py b/Lib/xml/dom/minidom.py
index 3087a5c..b6f0a862 100644
--- a/Lib/xml/dom/minidom.py
+++ b/Lib/xml/dom/minidom.py
@@ -204,6 +204,8 @@
                 L.append(child)
                 if child.nodeType == Node.ELEMENT_NODE:
                     child.normalize()
+        if L:
+            L[-1].nextSibling = None
         self.childNodes[:] = L
 
     def cloneNode(self, deep):
diff --git a/Lib/xmlrpclib.py b/Lib/xmlrpclib.py
index da96420..2e68a1b 100644
--- a/Lib/xmlrpclib.py
+++ b/Lib/xmlrpclib.py
@@ -298,13 +298,6 @@
             if datetime and isinstance(value, datetime.datetime):
                 self.value = value.strftime("%Y%m%dT%H:%M:%S")
                 return
-            if datetime and isinstance(value, datetime.date):
-                self.value = value.strftime("%Y%m%dT%H:%M:%S")
-                return
-            if datetime and isinstance(value, datetime.time):
-                today = datetime.datetime.now().strftime("%Y%m%d")
-                self.value = value.strftime(today+"T%H:%M:%S")
-                return
             if not isinstance(value, (tuple, time.struct_time)):
                 if value == 0:
                     value = time.time()
@@ -312,15 +305,57 @@
             value = time.strftime("%Y%m%dT%H:%M:%S", value)
         self.value = value
 
-    def __eq__(self, other):
+    def make_comparable(self, other):
         if isinstance(other, DateTime):
-            other = other.value
-        return self.value == other
+            s = self.value
+            o = other.value
+        elif datetime and isinstance(other, datetime.datetime):
+            s = self.value
+            o = other.strftime("%Y%m%dT%H:%M:%S")
+        elif isinstance(other, (str, unicode)):
+            s = self.value
+            o = other
+        elif hasattr(other, "timetuple"):
+            s = self.timetuple()
+            o = other.timetuple()
+        else:
+            otype = (hasattr(other, "__class__")
+                     and other.__class__.__name__
+                     or type(other))
+            raise TypeError("Can't compare %s and %s" %
+                            (self.__class__.__name__, otype))
+        return s, o
+
+    def __lt__(self, other):
+        s, o = self.make_comparable(other)
+        return s < o
+
+    def __le__(self, other):
+        s, o = self.make_comparable(other)
+        return s <= o
+
+    def __gt__(self, other):
+        s, o = self.make_comparable(other)
+        return s > o
+
+    def __ge__(self, other):
+        s, o = self.make_comparable(other)
+        return s >= o
+
+    def __eq__(self, other):
+        s, o = self.make_comparable(other)
+        return s == o
 
     def __ne__(self, other):
-        if isinstance(other, DateTime):
-            other = other.value
-        return self.value != other
+        s, o = self.make_comparable(other)
+        return s != o
+
+    def timetuple(self):
+        return time.strptime(self.value, "%Y%m%dT%H:%M:%S")
+
+    def __cmp__(self, other):
+        s, o = self.make_comparable(other)
+        return cmp(s, o)
 
     ##
     # Get date/time value.
@@ -669,19 +704,6 @@
             write("</dateTime.iso8601></value>\n")
         dispatch[datetime.datetime] = dump_datetime
 
-        def dump_date(self, value, write):
-            write("<value><dateTime.iso8601>")
-            write(value.strftime("%Y%m%dT00:00:00"))
-            write("</dateTime.iso8601></value>\n")
-        dispatch[datetime.date] = dump_date
-
-        def dump_time(self, value, write):
-            write("<value><dateTime.iso8601>")
-            write(datetime.datetime.now().date().strftime("%Y%m%dT"))
-            write(value.strftime("%H:%M:%S"))
-            write("</dateTime.iso8601></value>\n")
-        dispatch[datetime.time] = dump_time
-
     def dump_instance(self, value, write):
         # check for special wrappers
         if value.__class__ in WRAPPERS: