import sha
import atom
import gdata.contacts
import gdata.contacts.service
 
gd_client = gdata.contacts.service.ContactsService()

# Change this obviously 
gd_client.email = 'EMAIL'
gd_client.password = 'PASSWORD'
gd_client.ProgrammaticLogin()

"""
This is used like a case statement later on.
It's apparently a slightly slow way to do it but it just seems so elegant to me.  I'm not a Pythonista at all though so there may be a more Pythonic way to do it that I'm not aware of.
""" 
rel_list = {gdata.contacts.REL_WORK: "Work",
            gdata.contacts.REL_HOME: "Home",
            gdata.contacts.REL_OTHER: "Other",
            gdata.contacts.PHONE_MOBILE: "Mobile"}

# This is the date used for "updated_min" below.
date = '2009-08-12T00:00:00'
 
query = gdata.contacts.service.ContactsQuery()
query.updated_min = date
 
feed = gd_client.GetContactsFeed(query.ToUri())
 
for contact in feed.entry:
    print contact.title.text
    for phone in contact.phone_number:
        print rel_list[phone.rel] + ": " + phone.text
 
def rel_type(rel):
    pass

Simple example of using Google's API for contacts to display the contact name and phone number.  More info in the comments.

GData Contacts Example

google, python

Python