Merge p3yk branch with the trunk up to revision 45595. This breaks a fair

number of tests, all because of the codecs/_multibytecodecs issue described
here (it's not a Py3K issue, just something Py3K discovers):
http://mail.python.org/pipermail/python-dev/2006-April/064051.html

Hye-Shik Chang promised to look for a fix, so no need to fix it here. The
tests that are expected to break are:

test_codecencodings_cn
test_codecencodings_hk
test_codecencodings_jp
test_codecencodings_kr
test_codecencodings_tw
test_codecs
test_multibytecodec

This merge fixes an actual test failure (test_weakref) in this branch,
though, so I believe merging is the right thing to do anyway.

Lib/test/test_cmd_line.py

@@ -10,6 +10,9 @@ class CmdLineTest(unittest.TestCase):
         infp.close()
         data = outfp.read()
         outfp.close()
+        # try to cleanup the child so we don't appear to leak when running
+        # with regrtest -R.  This should be a no-op on Windows.
+        popen2._cleanup()
         return data
 
     def exit_code(self, cmd_line):