Namespaces

URL Namespace Implementations

URL namespaces are an extensible mechanism to provide additional control over traversal (for example, disambiguating item versus attribute access) or access to an additional set of traversable names (such as registered views or path adapters). This mechanism is used for path segments that look like ++ns++name. (It is also used for segments like @@name, which is a shortcut for ++view++name. See nsParse() for details.)

ns is the name of the namespace (a named, registered adapter that implements ITraversable) and name is the name to traverse to in that namespace.

The function namespaceLookup() handles this process.

If you configure this package by loading its configure.zcml using zope.configuration.xmlconfig, several namespaces are registered. They are registered both as single adapters for any object, and as multi-adapters (views) for any object together with a zope.publisher.interfaces.IRequest. Those namespaces are:

etc

Implemented in etc

attribute

Implemented in attr

adapter

Implemented in adapter

item

Implemented in item

acquire

Implemented in acquire

view

Implemented in view

resource

Implemented in resource

lang

Implemented in lang

skin

Implemented in skin

vh

Implemented in vh

debug

Implemented in debug (only if the ZCML feature devmode is enabled) and only registered as a multi-adapter.