new (Irc::DBHash)

    # File rbot/dbhash.rb, line 35
        def initialize(bot, key)
          @bot = bot
          @key = key
          if File.exist?(@bot.botclass + "/#{key}.db")
            # db already exists, use it
            @db = DBHash.open_db(@bot.botclass + "/#{key}.db")
          elsif File.exist?(@bot.botclass + "/#{key}.txt")
            # convert
            DBHash::convert_to_db(@bot.botclass + "/#{key}.txt",
                                  @bot.botclass + "/#{key}.db")
            @db = DBHash.open_db(@bot.botclass + "/#{key}.db")
          elsif File.exist?(@bot.botclass + "/#{key}")
            # convert
            DBHash::convert_to_db(@bot.botclass + "/#{key}",
                                  @bot.botclass + "/#{key}.db")
            @db = DBHash.open_db(@bot.botclass + "/#{key}.db")
          else
            # create empty db
            @db = DBHash.create_db(@bot.botclass + "/#{key}.db")
          end
        end