App Engine Documentation Python Standard Environment Documentation google.appengine.api.modules package Summary Modules API module. Sub Modules google.appengine.api.modules.modules Exposes methods to control modules and versions of an app. Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 3.0 License, and code samples are licensed under the Apache 2.0 License. For details, see our Site Policies. Java is a registered trademark of Oracle and/or its affiliates. Last updated February 22, 2017.