[twill] 'Follow' the N'th link

[Kevin Boers]

Hi, Jeff,

twill's follow() method just calls mechanize's find_link() interface using a few different criteria until it finds one to follow. You can pass mechanize a regex object directly, though, to return a specific one:

# Import re and twill
import re
import twill.commands as t

# Goto the target site
t.go("http://www.google.com/search?q=twill")

# Call the mechanize browser's find_link method, using the nr argument to specify which link to return
link_2 = t.browser._browser.find_link(text_regex=re.compile("Similar pages"), nr=2)
link_3 = t.browser._browser.find_link(text_regex=re.compile("Similar pages"), nr=3)

# Follow a link
t.browser.follow_link(link_3)

There are actually several arguments that find_link will accept: text, text_regex, name, name_regex, url, url_regex, tag, predicate, nr

For more info, see the docstring for find_link at: http://codespeak.net/svn/wwwsearch/mechanize/trunk/mechanize/_mechanize.py

Hope that helps,
Kevin
________________________________________
From: twill-bounces at lists.idyll.org [twill-bounces at lists.idyll.org] On Behalf Of Jeff Creem [jeff at thecreems.com]
Sent: Friday, October 10, 2008 10:28 PM
To: twill at lists.idyll.org
Subject: [twill] 'Follow' the N'th link

I've got a page I am dealing with where there are (sometimes) two links
on the page with the same 'name'
Is there any robust way to have the 'follow' command go to anything
other than the first link or to programmatically iterate over all of the
links from the python interface?



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