The “new snippet” has a nice explanation for the Creole dialect that is used:
But there is no such thing when adding a new snippet comment. A link to the new snippet page or the creole website in the comment form should be enough.
This is a follow-up on a mailing-list question: http://flask.pocoo.org/mailinglist/archive/2011/12/31/how-do-i-add-code-markers-to-snippets/
Moved to pocoo/flask-snippets#7