From: "ara.t.howard" <ara.t.howard@...>
Date: 2008-08-15T02:17:34+09:00
Subject: Re: Uninitialized constant: String::StringIO


On Aug 14, 2008, at 10:57 AM, Patrick Li wrote:

> Thanks Ara,
>
> Just out of curiosity, why is it that I need
> require "stringio" when running as a script under Apache, but not  
> when I
> run under irb?
>
> Is there a way to tell when I need to require a library and when I
> don't? (ie. from documentation, etc...)

irb simply had already required it.  there is no general way to tell  
but, in this case you could check $LOADED_FEATURES

or, more simply

require 'stringio'  unless defined?(StringIO)

but the require never hurts so just do it anyhow

a @ http://codeforpeople.com/
--
we can deny everything, except that we have the possibility of being  
better. simply reflect on that.
h.h. the 14th dalai lama