[Zope] Grabbing an item from a list of tuples

[Kevin Carlson]

Aaron,

In this case you might want to consider using a dictionary.  Instead of a
list of tuples, you would get:

{'http://www.news.com/frontdoor/0-1.html?tag=hd_ts': 'CNET',
'http://www.news.com/shopping/0-1257.html?tag=hd_ts': 'Price comparisons'}

This would allow you to access each dictionary entry using the URL as the
key:

    elem = pAnchors['http://www.news.com/frontdoor/0-1.html?tag=hd_ts']  #
would yield 'CNET'

If you desired, you could also have the dictionary value for each key be a
tuple.

Kevin

-----Original Message-----
From: zope-admin@zope.org [mailto:zope-admin@zope.org]On Behalf Of
abg@comco-inc.com
Sent: Friday, July 19, 2002 11:34 AM
To: zope@zope.org
Subject: [Zope] Grabbing an item from a list of tuples


I am writing a script which returns a list of tuples, like so:

[('http://www.news.com/frontdoor/0-1.html?tag=hd_ts', 'CNET'),
('http://www.news.com/shopping/0-1257.html?tag=hd_ts', 'Price comparisons')]

My question (and it's a dumb one) is: how do I refer to the individual
values within the tuples when iterating through the list?

Here's what I've got so far:

myCount = 0

for elem in p.anchors:
	for elem in elem:
		print myCount, ": ", elem[0:]
		myCount = myCount + 1

Here's what it returns:

0 :  http://www.news.com/frontdoor/0-1.html?tag=hd_ts
1 :  CNET
2 :  http://www.news.com/shopping/0-1257.html?tag=hd_ts
3 :  Price comparisons

How can I specifically reference the urls/titles separately?

Am I making sense?

Thanks,

Aaron Gillette
abg@comco-inc.com


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