/
__init__.py
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/
__init__.py
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##############################################################################
#
# Copyright (c) 2002 Zope Corporation and Contributors. All Rights Reserved.
#
# This software is subject to the provisions of the Zope Public License,
# Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution.
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
# FOR A PARTICULAR PURPOSE
#
##############################################################################
"""General exceptions that wish they were standard exceptions
These exceptions are so general purpose that they don't belong in Zope
application-specific packages.
$Id$
"""
import warnings
from zope.interface import implements
from zope.interface.common.interfaces import IException
from zope.publisher.interfaces import INotFound
from zope.security.interfaces import IForbidden
from zExceptions.unauthorized import Unauthorized
class BadRequest(Exception):
implements(IException)
class InternalError(Exception):
implements(IException)
class NotFound(Exception):
implements(INotFound)
class Forbidden(Exception):
implements(IForbidden)
class MethodNotAllowed(Exception):
pass
class Redirect(Exception):
pass
def upgradeException(t, v):
# If a string exception is found, convert it to an equivalent
# exception defined either in builtins or zExceptions. If none of
# that works, tehn convert it to an InternalError and keep the
# original exception name as part of the exception value.
import zExceptions
if not isinstance(t, basestring):
return t, v
warnings.warn('String exceptions are deprecated starting '
'with Python 2.5 and will be removed in a '
'future release', DeprecationWarning, stacklevel=2)
n = None
if __builtins__.has_key(t):
n = __builtins__[t]
elif hasattr(zExceptions, t):
n = getattr(zExceptions, t)
if n is not None and issubclass(n, Exception):
t = n
else:
v = t, v
t = InternalError
return t, v