converted to their string representation using the encoding of &rsquo;port&rsquo;
if a port encoding has been set, or otherwise using the program&rsquo;s
default port encoding, or if neither has been set using iso-8859-1
(Latin-1).  Exceptions from conversion errors should not arise with
iso-8859-1 encoding, although the string may not necessarily have the
desired meaning for the program concerned if the input encoding is in
fact different.  From version 0.7, this procedure uses the conversion
strategy for 