Hello Fabio, Best way to do it with Python, as recommended by a Google App Engine Python developer in his reply to "Securely storing environment variables in GAE with app.yaml" question on stackoverflow <https://stackoverflow.com/questions/22669528/securely-storing-environment-variables-in-gae-with-app-yaml>, were by storing the keys in a client_secrets.json file, and excluding that file from being uploaded to git by listing it in your .gitignore file.
It may be worthwhile mentioning here that Cookiecutter Django does not offer <https://github.com/pydanny/cookiecutter-django/issues/560>App Engine support. -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-appengine+unsubscr...@googlegroups.com. To post to this group, send email to google-appengine@googlegroups.com. Visit this group at https://groups.google.com/group/google-appengine. To view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/dbc4f119-1616-451b-a080-5cba49557b9b%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.