appengine/standard/i18n/templates/index.jinja2 (11 lines of code) (raw):

<!DOCTYPE html> <html> {{ get_i18n_js_tag() }} An internationalized message generated in the Python code: {{ message|e }}<br> An internationalized message generated in jinja2 template: {{ gettext('Hello World from Jinja2 template!')|e }}<br> An internationalized message generated in javascript: <span id="js-message"></span><br> <script src="/static/js/main.js" type="text/javascript"> </script> </html>