canonical.launchpad.webapp.error.NotFoundView : API documentation

Method	__call__	Undocumented
Method	referrer	If there is a referring page, return its URL.

Inherited from SystemErrorView:

Method	__init__	Undocumented
Method	isSystemError	See zope.app.exception.interfaces import ISystemErrorView
Method	computeDebugOutput	Inspect the exception, and set up instance attributes.
Method	inside_div	Returns the given HTML inside a div of an appropriate class.
Method	maybeShowTraceback	Return a traceback, but only if it is appropriate to do so.
Method	oops_id_text	Return the OOPS ID, linkified if appropriate.
Method	render_as_text	Render the exception as text.
Method	layer_help	Undocumented

@cachedproperty
def referrer(self):

If there is a referring page, return its URL.

Otherwise return None.

c.l.w.e.NotFoundView(SystemErrorView) : class documentation