Remove unused imports in test modules.
diff --git a/Lib/test/test_sys.py b/Lib/test/test_sys.py
index f7e828b..15b88ce 100644
--- a/Lib/test/test_sys.py
+++ b/Lib/test/test_sys.py
@@ -1,6 +1,6 @@
# -*- coding: iso-8859-1 -*-
import unittest, test.test_support
-import sys, cStringIO, os
+import sys, os, cStringIO
import struct
import operator
@@ -415,7 +415,7 @@
sys._clear_type_cache()
def test_ioencoding(self):
- import subprocess,os
+ import subprocess
env = dict(os.environ)
# Test character: cent sign, encoded as 0x4A (ASCII J) in CP424,