Google multiple sign-in on App Engine

views.py

from django.shortcuts import redirect
from google.appengine.api.users import (
    create_login_url,
    create_logout_url,
    get_current_user,
)

def switch_accounts(request):
    """ View function for allowing a user to switch Google accounts.
        Requires 'destination_url' in the query string for the URL
        to redirect the user to after they have switched accounts.
    """
    current_user_id = get_current_user().user_id()
    previous_user_id = request.session.get('original_user_id')
    if previous_user_id and previous_user_id != current_user_id:
        #They have successfully switched accounts
        del request.session['original_user_id']
        final_destination = request.GET['destination_url']
        return redirect(final_destination)
    if previous_user_id and previous_user_id == current_user_id:
        #They’ve been to the login view and returned as the same
        #user, so they’re not using the multiple accounts feature.
        #To switch accounts they must log out, then back in again.
        login_url = create_login_url(dest_url=request.get_full_path())
        return redirect(create_logout_url(dest_url=login_url)))
    #else, we haven’t tried the multiple accounts test yet..
    request.session['original_user_id'] = current_user_id
    login_url = create_login_url(dest_url=request.get_full_path())
    return redirect(login_url)

Line 25 has an extra closing parenthesis. Should be return redirect(create_logout_url(dest_url=login_url)).
Basically a fix for those who are lazy and like to copy-paste : )