[Zope3-Users] KeyError: Surrogate

Bernd Dorn zope-mailinglist at mopa.at
Tue Apr 25 16:16:03 EDT 2006 

On 25.04.2006, at 19:38, ksmith99 wrote:

>
> Hi All,
>
> I'm using Zope 3.2.0 with Python 2.4.1, this error is popping up and
> crashing my zope. Does anyone know where I should start looking for
> problems?
>

i've had the same problem, seems that it has something to do with the  
twisted server, because on zserver this does not happen

workaround: make a zserver instance mkzopeinstance -zserver option



> Thanks,
>
> Ksmith
>
>
> 2006-04-22T20:53:59 ERROR SiteError Exception while getting
> IExceptionSideEffects adapter
> Traceback (most recent call last):
>   File
> "/home/admin/downloads/Zope-3.2.0/build/lib.linux-i686-2.4/zope/app/ 
> publication/zopepublication.py",
> line 357, in handleException
>     adapter = IExceptionSideEffects(exception, None)
>   File
> "/home/admin/downloads/Zope-3.2.0/build/lib.linux-i686-2.4/zope/ 
> interface/interface.py",
> line 675, in __call__
>     adapter = self.__adapt__(obj)
>   File
> "/home/admin/downloads/Zope-3.2.0/build/lib.linux-i686-2.4/zope/ 
> interface/interface.py",
> line 742, in __adapt__
>     adapter = hook(self, obj)
>   File
> "/home/admin/downloads/Zope-3.2.0/build/lib.linux-i686-2.4/twisted/ 
> python/components.py",
> line 124, in _hook
>     factory = lookup(declarations.providedBy(ob), iface)
>   File
> "/home/admin/downloads/Zope-3.2.0/build/lib.linux-i686-2.4/zope/ 
> interface/adapter.py",
> line 401, in lookup1
>     return self.lookup((required,), provided, name, default)
>   File
> "/home/admin/downloads/Zope-3.2.0/build/lib.linux-i686-2.4/zope/ 
> interface/adapter.py",
> line 333, in lookup
>     byname = s.get(provided)
>   File
> "/home/admin/downloads/Zope-3.2.0/build/lib.linux-i686-2.4/zope/ 
> interface/adapter.py",
> line 253, in get
>     self.clean()
>   File
> "/home/admin/downloads/Zope-3.2.0/build/lib.linux-i686-2.4/zope/ 
> interface/adapter.py",
> line 159, in clean
>     base.unsubscribe(self)
>   File
> "/home/admin/downloads/Zope-3.2.0/build/lib.linux-i686-2.4/zope/ 
> interface/adapter.py",
> line 280, in unsubscribe
>     raise KeyError(dependent)
> KeyError: <Surrogate(<zope.interface.Provides object at 0x42340bac>)>
> ------
> 2006-04-22T22:08:59 ERROR SiteError
> http://www.edwardmontgomeryfineart.com/artists/anne_blair_brown/ 
> ArtCollection/lunch_break/@@viewart/thumbnail
> Traceback (most recent call last):
>   File
> "/home/admin/downloads/Zope-3.2.0/build/lib.linux-i686-2.4/zope/ 
> publisher/publish.py",
> line 138, in publish
>     result = publication.callObject(request, object)
>   File
> "/home/admin/downloads/Zope-3.2.0/build/lib.linux-i686-2.4/zope/app/ 
> publication/zopepublication.py",
> line 161, in callObject
>     return mapply(ob, request.getPositionalArguments(), request)
>   File
> "/home/admin/downloads/Zope-3.2.0/build/lib.linux-i686-2.4/zope/ 
> publisher/publish.py",
> line 113, in mapply
>     return debug_call(object, args)
>   File
> "/home/admin/downloads/Zope-3.2.0/build/lib.linux-i686-2.4/zope/ 
> publisher/publish.py",
> line 119, in debug_call
>     return object(*args)
>   File "/home/admin/myzope/z1/lib/python/gallerymaker/browser/ 
> photo.py",
> line 76, in __call__
>     image.contentType)
>   File
> "/home/admin/downloads/Zope-3.2.0/build/lib.linux-i686-2.4/zope/ 
> security/checker.py",
> line 475, in check
>     self._checker2.check(object, name)
>   File
> "/home/admin/downloads/Zope-3.2.0/build/lib.linux-i686-2.4/zope/app/ 
> securitypolicy/zopepolicy.py",
> line 278, in checkPermission
>     if not self.cached_decision(
>   File
> "/home/admin/downloads/Zope-3.2.0/build/lib.linux-i686-2.4/zope/app/ 
> securitypolicy/zopepolicy.py",
> line 92, in cached_decision
>     decision = self.cached_prinper(parent, principal, groups,  
> permission)
>   File
> "/home/admin/downloads/Zope-3.2.0/build/lib.linux-i686-2.4/zope/app/ 
> securitypolicy/zopepolicy.py",
> line 138, in cached_prinper
>     prinper = IPrincipalPermissionMap(parent, None)
>   File
> "/home/admin/downloads/Zope-3.2.0/build/lib.linux-i686-2.4/zope/ 
> interface/interface.py",
> line 675, in __call__
>     adapter = self.__adapt__(obj)
>   File
> "/home/admin/downloads/Zope-3.2.0/build/lib.linux-i686-2.4/zope/ 
> interface/interface.py",
> line 742, in __adapt__
>     adapter = hook(self, obj)
>   File
> "/home/admin/downloads/Zope-3.2.0/build/lib.linux-i686-2.4/twisted/ 
> python/components.py",
> line 124, in _hook
>     factory = lookup(declarations.providedBy(ob), iface)
>   File
> "/home/admin/downloads/Zope-3.2.0/build/lib.linux-i686-2.4/zope/ 
> interface/adapter.py",
> line 401, in lookup1
>     return self.lookup((required,), provided, name, default)
>   File
> "/home/admin/downloads/Zope-3.2.0/build/lib.linux-i686-2.4/zope/ 
> interface/adapter.py",
> line 333, in lookup
>     byname = s.get(provided)
>   File
> "/home/admin/downloads/Zope-3.2.0/build/lib.linux-i686-2.4/zope/ 
> interface/adapter.py",
> line 253, in get
>     self.clean()
>   File
> "/home/admin/downloads/Zope-3.2.0/build/lib.linux-i686-2.4/zope/ 
> interface/adapter.py",
> line 159, in clean
>     base.unsubscribe(self)
>   File
> "/home/admin/downloads/Zope-3.2.0/build/lib.linux-i686-2.4/zope/ 
> interface/adapter.py",
> line 280, in unsubscribe
>     raise KeyError(dependent)
> KeyError: <Surrogate(<zope.interface.Provides object at 0x42d8608c>)>
> ------
> 2006-04-24T14:08:28 ERROR SiteError http://207.210.78.157:8080
> Traceback (most recent call last):
>   File
> "/home/admin/downloads/Zope-3.2.0/build/lib.linux-i686-2.4/zope/ 
> publisher/publish.py",
> line 132, in publish
>     publication.beforeTraversal(request)
>   File
> "/home/admin/downloads/Zope-3.2.0/build/lib.linux-i686-2.4/zope/app/ 
> publication/zopepublication.py",
> line 82, in beforeTraversal
>     p = prin_reg.authenticate(request)
>   File
> "/home/admin/downloads/Zope-3.2.0/build/lib.linux-i686-2.4/zope/app/ 
> security/principalregistry.py",
> line 38, in authenticate
>     a = interfaces.ILoginPassword(request, None)
>   File
> "/home/admin/downloads/Zope-3.2.0/build/lib.linux-i686-2.4/zope/ 
> interface/interface.py",
> line 675, in __call__
>     adapter = self.__adapt__(obj)
>   File
> "/home/admin/downloads/Zope-3.2.0/build/lib.linux-i686-2.4/zope/ 
> interface/interface.py",
> line 742, in __adapt__
>     adapter = hook(self, obj)
>   File
> "/home/admin/downloads/Zope-3.2.0/build/lib.linux-i686-2.4/zope/app/ 
> component/hooks.py",
> line 96, in adapter_hook
>     return siteinfo.adapter_hook(interface, object, name, default)
>   File
> "/home/admin/downloads/Zope-3.2.0/build/lib.linux-i686-2.4/zope/ 
> interface/adapter.py",
> line 413, in adapter_hook
>     factory = self.lookup1(providedBy(object), interface, name)
>   File
> "/home/admin/downloads/Zope-3.2.0/build/lib.linux-i686-2.4/zope/ 
> interface/adapter.py",
> line 401, in lookup1
>     return self.lookup((required,), provided, name, default)
>   File
> "/home/admin/downloads/Zope-3.2.0/build/lib.linux-i686-2.4/zope/ 
> interface/adapter.py",
> line 333, in lookup
>     byname = s.get(provided)
>   File
> "/home/admin/downloads/Zope-3.2.0/build/lib.linux-i686-2.4/zope/ 
> interface/adapter.py",
> line 253, in get
>     self.clean()
>   File
> "/home/admin/downloads/Zope-3.2.0/build/lib.linux-i686-2.4/zope/ 
> interface/adapter.py",
> line 159, in clean
>     base.unsubscribe(self)
>   File
> "/home/admin/downloads/Zope-3.2.0/build/lib.linux-i686-2.4/zope/ 
> interface/adapter.py",
> line 280, in unsubscribe
>     raise KeyError(dependent)
> KeyError: <Surrogate(<zope.interface.Provides object at 0x4487120c>)>
>
> --
> View this message in context: http://www.nabble.com/KeyError%3A- 
> Surrogate-t1506827.html#a4086718
> Sent from the Zope3 - users forum at Nabble.com.
>
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