Added paging support to the Contacts sample.

Added paging support to the Contacts sample.

Updated Contacts API sample to support paging when working with accounts that
have a large number of contacts and/or groups.

[j.s, 2008-10-22 21:09:48]

http://codereview.appspot.com/7852/diff/1/2
File samples/contacts/contacts_example.py (right):

http://codereview.appspot.com/7852/diff/1/2#newcode91
Line 91: next =
atom.Link(href='http://www.google.com/m8/feeds/contacts/default/full')
line too long

http://codereview.appspot.com/7852/diff/1/2#newcode93
Line 93: while next:
My only concern here is that this could take a while if the user has lots and
lots of contacts. Could you add a prompt to allow them to "request the next
batch or quit iterating"?

[Trevor Johns (Google), 2008-10-22 23:18:15]

http://codereview.appspot.com/7852/diff/1/2
File samples/contacts/contacts_example.py (right):

http://codereview.appspot.com/7852/diff/1/2#newcode91
Line 91: next =
atom.Link(href='http://www.google.com/m8/feeds/contacts/default/full')
On 2008/10/22 21:09:48, j.s wrote:
> line too long

Done.

http://codereview.appspot.com/7852/diff/1/2#newcode93
Line 93: while next:
On 2008/10/22 21:09:48, j.s wrote:
> My only concern here is that this could take a while if the user has lots and
> lots of contacts. Could you add a prompt to allow them to "request the next
> batch or quit iterating"?

Done.

Also refactored out some repeated code.

[j.s, 2008-10-23 00:10:28]

LGTM