1 #

     2 # Copyright (c) 2008-2015 Thierry Florac <tflorac AT ulthar.net>

     3 # All Rights Reserved.

     4 #

     5 # This software is subject to the provisions of the Zope Public License,

     6 # Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.

     7 # THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED

     8 # WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

     9 # WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS

    10 # FOR A PARTICULAR PURPOSE.

    11 #

    12 

    13 __docformat__ = 'restructuredtext'

    14 

    15 

    16 # import standard library

    17 

    18 # import interfaces

    19 from zope.traversing.interfaces import ITraversable

    20 

    21 # import packages

    22 from pyams_utils.adapter import ContextAdapter, adapter_config

    23 from pyramid.exceptions import NotFound

    24 from zope.interface import Interface

    25 

    26 

    27 @adapter_config(name='attr', context=Interface, provides=ITraversable)

    28 class AttributeTraverser(ContextAdapter):

    29     """++attr++ namespace traverser"""

    30 

    31     def traverse(self, name, furtherpath=None):

    32         try:

    33             return getattr(self.context, name)

    34         except AttributeError:

    35             raise NotFound