12.2 Changes to the WWW and Internet tools

• The htmllib module has been rewritten in an incompatible fashion. The new version is considerably more complete (HTML 2.0 except forms, but including all ISO-8859-1 entity definitions), and easy to use. Small changes to sgmllib have also been made, to better match the tokenization of HTML as recognized by other web tools.
• A new module formatter has been added, for use with the new htmllib module.
• The urlliband httplib modules have been changed somewhat to allow overriding unknown URL types and to support authentication. They now use mimetools.Message instead of rfc822.Message to parse headers. The endrequest() method has been removed from the HTTP class since it breaks the interaction with some servers.
• The rfc822.Message class has been changed to allow a flag to be passed in that says that the file is unseekable.
• The ftplib module has been fixed to be (hopefully) more robust on Linux.
• Several new operations that are optionally supported by servers have been added to nntplib: xover, xgtitle, xpath and date.