Traversal

The publisher comes with support for traversal; this is a class or instance on the form:

class Traverser(object):
    @staticmethod
    def resolve(segments):
        """Return context."""

    @staticmethod
    def reverse(context):
        """Return path or path segments."""

A traverser may be provided for a particular route (or routes), or set as the default traverser by passing it to the publisher on instantiation.

It is only used on routes that include an unnamed asterisk, e.g.:

/static/*

The reverse method is optional; only if it’s implemented is the path method available on the route.