From: "Karl von Laudermann" <doodpants / mailinator.com>
Subject: Ruby/Tk: pack() with block doesn't work
Date: Fri, 2 Dec 2005 01:32:31 +0900
Message-ID: <1133454582.885994.326050 / z14g2000cwz.googlegroups.com>
> Is this a bug or omission in Ruby/Tk? Or is pack() not meant to use a
> block, and thus it is a bug in the Pickaxe example? I have verified
> that this behavior is the same on the default Ruby install in Mac OS X
> 10.4.3, and in the Windows one-click installer 1.8.2-15.

'pack' method doesn't accept a block.
So, I think that it is a bug in the Pickaxe example.
-- 
Hidetoshi NAGAI (nagai / ai.kyutech.ac.jp)