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-rw-r--r--src/zope/security/interfaces.py8
1 files changed, 6 insertions, 2 deletions
diff --git a/src/zope/security/interfaces.py b/src/zope/security/interfaces.py
index 1035b77..81addc2 100644
--- a/src/zope/security/interfaces.py
+++ b/src/zope/security/interfaces.py
@@ -19,6 +19,12 @@ from zope.interface.common.interfaces import IException, IAttributeError
from zope.schema import Text, TextLine
from zope.security.i18n import ZopeMessageFactory as _
+#: The name (id) of the registered :class:`IPermission` utility that signifies
+#: that the protected attribute is public.
+#:
+#: .. versionadded:: 4.2.0
+PUBLIC_PERMISSION_NAME = 'zope.Public'
+
class IUnauthorized(IException):
pass
@@ -26,8 +32,6 @@ class IUnauthorized(IException):
class Unauthorized(Exception):
"""Some user wasn't allowed to access a resource"""
-
-
class IForbidden(IException):
pass