Traceback (most recent call last):
  File "/usr/lib/ubiquity/ubiquity/plugin.py", line 44, in wrapper
    return target(self, *args, **kwargs)
  File "/usr/lib/ubiquity/plugins/ubi-language.py", line 184, in on_try_hostname_clicked
    self.controller.dbfilter.ok_handler()
  File "/usr/lib/ubiquity/plugins/ubi-language.py", line 564, in ok_handler
    self.preseed(self.language_question, new_language)
  File "/usr/lib/ubiquity/ubiquity/filteredcommand.py", line 340, in preseed
    self.db.set(name, value)
  File "/usr/lib/python2.6/dist-packages/debconf.py", line 65, in <lambda>
    lambda *args, **kw: self.command(command, *args, **kw))
  File "/usr/lib/python2.6/dist-packages/debconf.py", line 69, in command
    self.write.write("%s %s\n" % (command, ' '.join(map(str, params))))
ValueError: I/O operation on closed file