example of how to get user email from google apis

getting_user_email.py

from bottle import route, request, redirect, view
from apiclient import discovery
# from apiclient import errors
from oauth2client import client
import httplib2
import json
import os


CLIENT_ID = 'YOURCLIENTID.apps.googleusercontent.com'
CLIENT_SECRET = 'YOURSERCERET'
REDIRECT_URI = 'http://YOURREDIRECTURI' # as added in the google developer console
OAUTH_SCOPE = ['email'] # shorthand scope
flow = client.OAuth2WebServerFlow(CLIENT_ID, CLIENT_SECRET, OAUTH_SCOPE, REDIRECT_URI)
flow.params['access_type'] = 'offline' # in order to get the refresh token

@route('/')
@route('/home')
def home():
    authorize_url = flow.step1_get_authorize_url()
    redirect(authorize_url)

@route('/YOURURLREDIRECT', method='GET')
def redirected():
    code = request.query.get('code')
    credentials = flow.step2_exchange(code)
    http = httplib2.Http()
    http = credentials.authorize(http)
    user_service = discovery.build('plus', 'v1', http=http).people()
    try:
        user = user_service.get(userId='me').execute()
        email = user['emails'][0]['value']
    except AttributeError:
        print "Had some error in getting email this is not that important"
        email = None
    # do something with email
    # return some value for the app