WWW::Mechanize - error on geting non-existing page

Anonymous Monk has asked for the wisdom of the Perl Monks concerning the following question:

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Re: WWW::Mechanize - error on geting non-existing page by Limbic~Region (Chancellor) on Nov 05, 2011 at 18:20 UTC
Anonymous Monk, With current versions of WWW::Mechanize, autocheck is enabled causing $mech to die in these situations. Here is how you might want to handle it: `eval { $mech->get($url); }; if ($@) { if ($mech->status == 404) { # handle page not found } else { die "Mech failed to fetch '$url': $@"; } }` [download] Cheers - L~R	[reply] [d/l]
Re^2: WWW::Mechanize - error on geting non-existing page by Your Mother (Archbishop) on Nov 05, 2011 at 23:22 UTC
You can also just set `onerror => undef` which is easier and less error prone than eval/try style code.	[reply] [d/l]
Re^3: WWW::Mechanize - error on geting non-existing page by Limbic~Region (Chancellor) on Nov 06, 2011 at 14:37 UTC
Your Mother, I honestly can't think of any reason this might be true. Do you also establish a DBI connection without RaiseError set to true? It is akin to not checking the return code of open. If something goes wrong, I want to know about it very loudly instead of blindly assuming everything is ok. Can you give me an example of where setting it to false is better? I assure you I haven't adopted this strategy as a cargo cult practice and am genuinely interested in hearing your views on how this is better. Cheers - L~R	[reply]
Re^4: WWW::Mechanize - error on geting non-existing page by Your Mother (Archbishop) on Nov 06, 2011 at 17:10 UTC
Re^5: WWW::Mechanize - error on geting non-existing page by GrandFather (Saint) on Nov 06, 2011 at 20:14 UTC
Some notes below your chosen depth have not been shown here
Re^5: WWW::Mechanize - error on geting non-existing page by Limbic~Region (Chancellor) on Nov 09, 2011 at 17:06 UTC
Re^2: WWW::Mechanize - error on geting non-existing page by cavac (Prior) on Nov 05, 2011 at 20:43 UTC
You also might want to switch to WWW::Mechanize::GZip, since some versions of the original WWW::Mechanize seem to announce to handle HTTP compression but don't in reality. This might result in "unparseable" results returned from the webserver. Don't use '#ff0000': use Acme::AutoColor; my $redcolor = RED(); All colors subject to change without notice.	[reply]
Re^3: WWW::Mechanize - error on geting non-existing page by Anonymous Monk on Nov 06, 2011 at 00:01 UTC
You also might want to switch to WWW::Mechanize::GZip, since some versions of the original WWW::Mechanize seem to announce to handle HTTP compression but don't in reality. This might result in "unparseable" results returned from the webserver. I doubt this ever happens :) but if it did, the solution is to always install the latest WWW::Mechanize , LWP, Compress::Zlib If you were going to install WWW::Mechanize::GZip, you might install the latest WWW::Mechanize , LWP, Compress::Zlib instead	[reply]
Re^4: WWW::Mechanize - error on geting non-existing page by cavac (Prior) on Nov 06, 2011 at 00:24 UTC
Re^4: WWW::Mechanize - error on geting non-existing page by Limbic~Region (Chancellor) on Dec 03, 2011 at 20:05 UTC
Re^2: WWW::Mechanize - error on geting non-existing page by Anonymous Monk on Nov 05, 2011 at 23:09 UTC
Thanks a bunch, problem solved!	[reply]
Re: WWW::Mechanize - error on geting non-existing page by moritz (Cardinal) on Nov 05, 2011 at 16:51 UTC
In general you can catch exceptions with the BLOCK form of eval. Perl 6 - second systems done right	[reply]
Re: WWW::Mechanize - error on geting non-existing page by bichonfrise74 (Vicar) on Nov 05, 2011 at 16:47 UTC
Can you show us what you have done so far?	[reply]