Re^2: Scrappy user

in reply to Re: Scrappy user_agent error
in thread Scrappy user_agent error

Some sites I visit automatically block robots. I was under the impression that this would change the default "Browser" id... Am I wrong?

From CPAN: The user_agent attribute holds the Scrappy::Scraper::UserAg
+ent object which is used to set and manipulate the user-agent header 
+of the scraper.

use Scrappy qw/:syntax/;
user_agent random_ua;

or

user_agent random_ua 'firefox'; # firefox only
user_agent random_ua 'firefox', 'linux'; # firefox on linux only
[download]

Comment on Re^2: Scrappy user_agent error Download Code

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Re^3: Scrappy user_agent error by jethro (Monsignor) on Jan 03, 2012 at 17:51 UTC
Could it be that you are using a recent scrappy (0.9xxx) but reading the documentation for an older version (like 0.6xxx)? I could find code like "qw/:syntax/" only in older documentation and in example scripts on the web (with a quick google search)	[reply]
Re^4: Scrappy user_agent error by docster (Novice) on Jan 03, 2012 at 18:45 UTC
Yes, it is entirely possible. I took the code above from the authors blog post. It is hard to find examples of a working Scrappy script. But as of now I am using: `Scrappy (0.94112090).` And CPANs Module Version: 0.94112090 docs from: http://search.cpan.org/dist/Scrappy/lib/Scrappy.pm#user_agent user_agent The user_agent attribute holds the Scrappy::Scraper::UserAgent object which is used to set and manipulate the user-agent header of the scraper. `my $scraper = Scrappy->new; $scraper->user_agent;` [download] So in that context, how would I set the user_agent correctly to be firefox using Scrappy 0.94112090? There used to be way. Maybe it was removed. I seem to be missing the entire picture somehow :)	[reply] [d/l] [select]
Re^5: Scrappy user_agent error by jethro (Monsignor) on Jan 04, 2012 at 10:16 UTC
Look at the source https://metacpan.org/source/AWNCORP/Scrappy-0.94112090/lib/Scrappy/Scraper/UserAgent.pm, first parameter is browser, second parameter the operating system, i.e. you would use something like `scraper->user_agent("opera","Macintosh")` PS: As the others have said, if the sites doesn't want robots, you shouldn't just ignore that.	[reply] [d/l]
Re^6: Scrappy user_agent error by docster (Novice) on Jan 06, 2012 at 16:51 UTC
Re^5: Scrappy user_agent error by roboticus (Chancellor) on Jan 04, 2012 at 04:01 UTC
docster: I've not used Scrappy, but perhaps you could check out the tests for examples on how to change the user agent name. ...roboticus When your only tool is a hammer, all problems look like your thumb.	[reply]
Re^3: Scrappy user_agent error by GrandFather (Saint) on Jan 03, 2012 at 23:43 UTC
Have you checked (in their terms of use) that the sites that "automatically block robots" allow scraping? It would be pretty unusual to block robots and allow scraping! True laziness is hard work	[reply]

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