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/smtplib.py

@@ -255,7 +255,11 @@ class SMTP:
                 self.local_hostname = fqdn
             else:
                 # We can't find an fqdn hostname, so use a domain literal
-                addr = socket.gethostbyname(socket.gethostname())
+                addr = '127.0.0.1'
+                try:
+                    addr = socket.gethostbyname(socket.gethostname())
+                except socket.gaierror:
+                    pass
                 self.local_hostname = '[%s]' % addr
 
     def set_debuglevel(self, debuglevel):