From: Martin DeMello <martindemello@...>
Date: 2009-12-20T06:41:40+09:00
Subject: [ruby-core:27237] Re: irb's output_method

Okay, looks like that doesn't work for errors. Also, redirecting
$stderr doesn't work but redirecting $DEFAULT_OUTPUT does. Can anyone
explain why this happens?

$ irb
irb(main):001:0> require 'stringio'
=> true
irb(main):002:0> $stderr = StringIO.new
=> #<StringIO:0x9b87698>
irb(main):003:0> hello
NameError: undefined local variable or method `hello' for main:Object
	from (irb):3
	from /usr/bin/irb:12:in `<main>'
irb(main):004:0> $> = StringIO.new
irb(main):005:0> hello
irb(main):006:0>

martin