if settings.DEBUG is False and settings.SANDBOX is True:
    urlpatterns += patterns('',
            (r'^500/$', 'django.views.defaults.server_error'),
            url(r'^static/(?P<path>.*)$', 'django.views.static.serve',
                {'document_root': settings.STATIC_ROOT}),
            url(r'^media/(?P<path>.*)$', 'django.views.static.serve',
                {'document_root': settings.MEDIA_ROOT}),
    )