NOTE: main_hmac.py and main_rsa.py are the same sample. The difference is the signature method used. Both samples require that you register your web application to obtain a consumer key/secret. To run main_hmac.py: - Register your web application as described here: http://code.google.com/apis/accounts/docs/RegistrationForWebAppsAuto.html - In main_hmac.py, change SETTINGs['CONSUMER_KEY'] and SETTINGs['CONSUMER_SECRET'] to your own values provided in https://www.google.com/accounts/ManageDomains To run main_rsa.py: - change 'main_hmac.py' to 'main_rsa.py' in app.yaml - Generate a self signing private key/certificate pair as described here: http://code.google.com/apis/gdata/oauth.html#GeneratingKeyCert - Register your web application as described here: http://code.google.com/apis/accounts/docs/RegistrationForWebAppsAuto.html Use https://www.google.com/accounts/ManageDomains to upload your certicate file. - In main_rsa.py, change the f = open('/path/to/your/rsa_private_key.pem') line to point to your .pem generated from the previous step. Make sure the file is readable by your webserver. Also change SETTINGs['CONSUMER_KEY'] to your own value found in https://www.google.com/accounts/ManageDomains. This value is typically your domain.