From: Tim Hunter <TimHunter@...>
Date: 2007-09-19T05:55:58+09:00
Subject: Re: check for active web pages with open-uri

Chuck Dawit wrote:
> Tim Hunter wrote:
>> Chuck Dawit wrote:
>>> I'm using openuri module to open web pages. If the pages doesn't exist I
>>> get an error:
>>> in `initialize': getaddrinfo: no address associated with hostname.
>>> (SocketError)
>>>
>>> then I get a whole bunch of other stuff. Is there a parameter to use so
>>> that open() returns a true or false value if the page exists or not?
>>> Basically I'm looking through a list of web addresses and I want to
>>> store the active pages and throw away the non active pages. So if the
>>> page doesn't exist I want to be able to move on in the script.
>> Why not use rescue to catch the SocketError?
> 
> If I use rescue will the script return back to normal flow without 
> exiting? I don't want the script to exit.

If that's what you want it to do. The idea is that your rescue block 
gets control when a SocketError occurs. What happens after that is up to 
you.

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