old_contents: import lala.config
  
  from datetime import datetime
  from lala.util import command, msg, regex
  
  
  lala.config.set_default_options(max_lines="30",
                                  datetime_format="%Y-%m-%d %H:%M:%S")
  
  
  class _LogEntryBuffer(list):
      """A list with a restricted length."""
      def __init__(self, maxentries):
          """
          :param maxentries: The amount of entries that can be stored in this list
          :type maxentries: Integer
          """
          list.__init__(self)
          self._maxentries = maxentries
  
      def __add__(self, *args, **kwargs):
          raise NotImplemented
  
      def __iadd__(self, *args, **kwargs):
          raise NotImplemented
  
      def append(self, item):
          if len(self) >= self._maxentries:
              self.pop(0)
          list.append(self, item)
  
  _chatlog = _LogEntryBuffer(lala.config.get_int("max_lines"))
  
  
  @command
  def last(user, channel, text):
      """Show the last lines from the log"""
      max_lines = lala.config.get_int("max_lines")
      s_text = text.split()
      try:
          num_lines = min(max_lines, int(s_text[1]))
      except IndexError:
          num_lines = max_lines
      num_lines = min(num_lines, len(_chatlog))
      msg(user, _chatlog[-num_lines:], log=False)
  
  
  @regex(".*")
  def chatlog(user, channel, text, match_obj):
      now = datetime.now().strftime(lala.config.get("datetime_format"))
      _chatlog.append("[%s] %s: %s" % (now, user, text))
  
new_contents: import lala.config
  
  from datetime import datetime
  from lala.util import command, msg, regex
  
  
  lala.config.set_default_options(max_lines="30",
                                  datetime_format="%Y-%m-%d %H:%M:%S")
  
  
  class _LogEntryBuffer(list):
      """A list with a restricted length."""
      def __init__(self, maxentries):
          """
          :param maxentries: The amount of entries that can be stored in this list
          :type maxentries: Integer
          """
          list.__init__(self)
          self._maxentries = maxentries
  
      def __add__(self, *args, **kwargs):
          raise NotImplemented
  
      def __iadd__(self, *args, **kwargs):
          raise NotImplemented
  
      def append(self, item):
          if len(self) >= self._maxentries:
              self.pop(0)
          list.append(self, item)
  
  _chatlog = _LogEntryBuffer(lala.config.get_int("max_lines"))
  
  
  @command
  def last(user, channel, text):
      """Show the last lines from the log"""
      max_lines = lala.config.get_int("max_lines")
      s_text = text.split()
      try:
          num_lines = min(max_lines, int(s_text[0]))
      except IndexError:
          num_lines = max_lines
      num_lines = min(num_lines, len(_chatlog))
      msg(user, _chatlog[-num_lines:], log=False)
  
  
  @regex(".*")
  def chatlog(user, channel, text, match_obj):
      now = datetime.now().strftime(lala.config.get("datetime_format"))
      _chatlog.append("[%s] %s: %s" % (now, user, text))
  
subject: Deal with changes made in f9ccf06