Update guestbook.py
Update guestbook.py
t9nf/appengine-guestbook-python,Romzz/appengine-guestbook-python,GoogleCloudPlatform/appengine-guestbook-python,bkeyvani/appengine-guestbook-python,wcyuan/weather-mailer,ashwini0529/appengine-guestbook-python,jerarl/gcp-appengine-python,JonGal/appengine-ml-demo,dmolson/appengine-guestbook-python,jeffgodwyll/appengine-flask-guestbook,thejeshgn/appengine-guestbook-python,jeffgodwyll/appengine-flask-guestbook,JackConnor/portfolio,artificechicago/camp2016,bkeyvani/appengine-guestbook-python,artificechicago/camp2016,jerarl/gcp-appengine-python,JackConnor/portfolio,t9nf/appengine-guestbook-python,thejeshgn/appengine-guestbook-python,ashwini0529/appengine-guestbook-python,adjohnson916/appengine-guestbook-python,wcyuan/weather-mailer,Romzz/appengine-guestbook-python,dmolson/appengine-guestbook-python,JonGal/appengine-ml-demo,GoogleCloudPlatform/appengine-guestbook-python,adjohnson916/appengine-guestbook-python