(例外)

説明

開発者はPloneのよくある例外トレースバックパターンに直面する

よくあるエラーの一覧とその解決策

AttributeError: ‘str’ object has no attribute ‘other’ (Mixed zope.viewpagetemplate and Five.viewpagetemplate)

トレースバックの例:

  Module zope.tales.tales, line 696, in evaluate
   - URL: /home/moo/sits/src/plone.z3cform/plone/z3cform/crud/crud-master.pt
   - Line 17, Column 2
   - Expression: <PathExpr standard:u'form/render'>
   - Names:
      {'args': (),
       'context': <SitsPatient at /folder_sits/sitsngta/intranet/sitsdatabase/sitscountry_TE/sitshospital_TES/sitspatient.TETES2009062217>,
       'default': <object object at 0xb7d76538>,
       'loop': {},
       'nothing': None,
       'options': {},
       'repeat': {},
       'request': <HTTPRequest, URL=http://localhost:9000/folder_sits/sitsngta/intranet/sitsdatabase/sitscountry_TE/sitshospital_TES/sitspatient.TETES2009062217/@@ar>,
       'template': <zope.app.pagetemplate.viewpagetemplatefile.ViewPageTemplateFile object at 0xc6e552c>,
       'usage': <zope.pagetemplate.pagetemplate.TemplateUsage object at 0xf7fb78c>,
       'view': <Products.SitsPatient.browser.ar.ARCrudForm object at 0xf928ccc>,
       'views': <zope.app.pagetemplate.viewpagetemplatefile.ViewMapper object at 0xf7b4a0c>}
  Module Products.PTProfiler.ProfilerPatch, line 32, in __patched_call__
  Module zope.tales.expressions, line 217, in __call__
  Module zope.tales.expressions, line 211, in _eval
  Module z3c.form.form, line 143, in render
  Module Shared.DC.Scripts.Bindings, line 313, in __call__
  Module Shared.DC.Scripts.Bindings, line 348, in _bindAndExec
  Module Shared.DC.Scripts.Bindings, line 1, in ?
  Module Shared.DC.Scripts.Bindings, line 293, in _getTraverseSubpath
AttributeError: 'str' object has no attribute 'other'

Fiveの ViewPageTemplate クラスファイルは、Zope3の標準 ViewPageTemplate と少しだけ違います。 この場合、Zope3の標準 ViewPageTemplate 期待されが、Fiveのが使われた。

他の理由として、獲得がカスタムビューを正しくセットアップされていない場合です。

違い:

from Products.Five.browser.pagetemplatefile import ViewPageTemplateFile

対:

**なぜか原文に書かれていない**

Iteration over non-sequence in _normalizeargs

以下のログトレースは、サイトの表示を試みた時に発生するだろう。 しかし、ZMIへはアクセス出来る:

2009-09-23 20:47:18 WARNING OFS.Uninstalled Could not import class 'IPloneCommentsLayer' from module 'quintagroup.plonecomments.interfaces'
2009-09-23 20:47:18 ERROR Zope.SiteErrorLog 1253728038.160.534632167217 http://localhost:9444/XXX
Traceback (innermost last):
  Module plone.postpublicationhook.hook, line 65, in publish
  Module ZPublisher.BaseRequest, line 424, in traverse
  Module ZPublisher.BeforeTraverse, line 99, in __call__
  Module Products.CMFCore.PortalObject, line 94, in __before_publishing_traverse__
  Module zope.event, line 23, in notify
  Module zope.component.event, line 26, in dispatch
  Module zope.component._api, line 130, in subscribers
  Module zope.component.registry, line 290, in subscribers
  Module zope.interface.adapter, line 535, in subscribers
  Module zope.component.event, line 33, in objectEventNotify
  Module zope.component._api, line 130, in subscribers
  Module zope.component.registry, line 290, in subscribers
  Module zope.interface.adapter, line 535, in subscribers
  Module plone.browserlayer.layer, line 18, in mark_layer
  Module zope.interface.declarations, line 848, in directlyProvides
  Module zope.interface.declarations, line 1371, in _normalizeargs
  Module zope.interface.declarations, line 1370, in _normalizeargs
TypeError: iteration over non-sequence
2009-09-23 20:47:18 ERROR root Exception while rendering an error message
Traceback (most recent call last):
  File "/home/moo/XXX/parts/zope2/lib/python/OFS/SimpleItem.py", line 227, in raise_standardErrorMessage
    v = s(**kwargs)
  File "/home/moo/workspace2/collective.skinny/collective/skinny/patch.py", line 8, in standard_error_message
    return self.restrictedTraverse('@@404.html')()
  File "/home/moo/workspace2/collective.skinny/collective/skinny/fourohfour.py", line 22, in __call__
    return skins.plone_templates.standard_error_message.__of__(
  File "/home/moo/XXX/eggs/Products.CMFCore-2.1.2-py2.4.egg/Products/CMFCore/FSPythonScript.py", line 140, in __call__
    return Script.__call__(self, *args, **kw)
  File "/home/moo/XXX/parts/zope2/lib/python/Shared/DC/Scripts/Bindings.py", line 313, in __call__
    return self._bindAndExec(args, kw, None)
  File "/home/moo/XXX/parts/zope2/lib/python/Shared/DC/Scripts/Bindings.py", line 350, in _bindAndExec
    return self._exec(bound_data, args, kw)
  File "/home/moo/XXX/eggs/Products.CMFCore-2.1.2-py2.4.egg/Products/CMFCore/FSPythonScript.py", line 196, in _exec
    result = f(*args, **kw)
  File "Script (Python)", line 27, in standard_error_message
AttributeError: default_error_message

これは通常、他のシステムから Data.fs をコピーしてきたことをを意味する。さらに、インストールされた同一のアドオンプロダクトを持っていない。

plone.orgのエラーリファレンスも参照(英文).

多くのタプルやリストの TraversalError (METAL問題)

例:

  File "/home/moo/saariselka/parts/zope2/lib/python/zope/tales/expressions.py", line 217, in __call__
    return self._eval(econtext)
  File "/home/moo/saariselka/parts/zope2/lib/python/Products/PageTemplates/Expressions.py", line 155, in _eval
    ob = self._subexprs[-1](econtext)
  File "/home/moo/saariselka/parts/zope2/lib/python/zope/tales/expressions.py", line 124, in _eval
    ob = self._traverser(ob, element, econtext)
  File "/home/moo/saariselka/parts/zope2/lib/python/Products/PageTemplates/Expressions.py", line 85, in boboAwareZopeTraverse
    request=request)
  File "/home/moo/saariselka/parts/zope2/lib/python/zope/traversing/adapters.py", line 164, in traversePathElement
    return traversable.traverse(nm, further_path)
   - __traceback_info__: ({u'main': [('version', '1.6'), ('mode', 'html'), ('setPosition', (7, 0)), ('setSourceFile', 'file:/home/moo/workspace2/collective.skinny/collective/skinny/skins/skinny_faux_layer/main_template.pt'), ('beginScope', {u'define-macro': u'main'}), ('optTag', (u'metal:main-macro', None, 'metal', 0, [('startTag', (u'metal:main-macro', [(u'define-macro', u'main', 'metal')]))], [('rawtextColumn', (u'\n\t', 1)), ('setPosition', (8, 1)), ('defineSlot', (u'main', [('beginScope', {u'define-slot': u'main'}), ('optTag', (u'metal:main-slot', None, 'metal', 0, [('startTag', (u'metal:main-slot', [(u'define-slot', u'main', 'metal')]))], [('rawtextColumn', (u'\n\t', 1))])), ('endScope', ())])), ('setPosition', (9, 1)), ('setSourceFile', 'file:/home/moo/workspace2/collective.skinny/collective/skinny/skins/skinny_faux_layer/main_template.pt'), ('rawtextColumn', (u'\n', 0))])), ('endScope', ())]}, 'master')
  File "/home/moo/saariselka/parts/zope2/lib/python/zope/traversing/adapters.py", line 52, in traverse
    raise TraversalError(subject, name)
   - __traceback_info__: ({u'main': [('version', '1.6'), ('mode', 'html'), ('setPosition', (7, 0)), ('setSourceFile', 'file:/home/moo/workspace2/collective.skinny/collective/skinny/skins/skinny_faux_layer/main_template.pt'), ('beginScope', {u'define-macro': u'main'}), ('optTag', (u'metal:main-macro', None, 'metal', 0, [('startTag', (u'metal:main-macro', [(u'define-macro', u'main', 'metal')]))], [('rawtextColumn', (u'\n\t', 1)), ('setPosition', (8, 1)), ('defineSlot', (u'main', [('beginScope', {u'define-slot': u'main'}), ('optTag', (u'metal:main-slot', None, 'metal', 0, [('startTag', (u'metal:main-slot', [(u'define-slot', u'main', 'metal')]))], [('rawtextColumn', (u'\n\t', 1))])), ('endScope', ())])), ('setPosition', (9, 1)), ('setSourceFile', 'file:/home/moo/workspace2/collective.skinny/collective/skinny/skins/skinny_faux_layer/main_template.pt'), ('rawtextColumn', (u'\n', 0))])), ('endScope', ())]}, 'master', [])
TraversalError: ({u'main': [('version', '1.6'), ('mode', 'html'), ('setPosition', (7, 0)), ('setSourceFile', 'file:/home/moo/workspace2/collective.skinny/collective/skinny/skins/skinny_faux_layer/main_template.pt'), ('beginScope', {u'define-macro': u'main'}), ('optTag', (u'metal:main-macro', None, 'metal', 0, [('startTag', (u'metal:main-macro', [(u'define-macro', u'main', 'metal')]))], [('rawtextColumn', (u'\n\t', 1)), ('setPosition', (8, 1)), ('defineSlot', (u'main', [('beginScope', {u'define-slot': u'main'}), ('optTag', (u'metal:main-slot', None, 'metal', 0, [('startTag', (u'metal:main-slot', [(u'define-slot', u'main', 'metal')]))], [('rawtextColumn', (u'\n\t', 1))])), ('endScope', ())])), ('setPosition', (9, 1)), ('setSourceFile', 'file:/home/moo/workspace2/collective.skinny/collective/skinny/skins/skinny_faux_layer/main_template.pt'), ('rawtextColumn', (u'\n', 0))])), ('endScope', ())]}, 'master') (Also, the following error occurred while attempting to render the standard error message, please see the event log for full details: ({u'main': [('version', '1.6'), ('mode', 'html'), ('setPosition', (7, 0)), ('setSourceFile', 'file:/home/moo/workspace2/collective.skinny/collective/skinny/skins/skinny_faux_layer/main_template.pt'), ('beginScope', {u'define-macro': u'main'}), ('optTag', (u'metal:main-macro', None, 'metal', 0, [('startTag', (u'metal:main-macro', [(u'define-macro', u'main', 'metal')]))], [('rawtextColumn', (u'\n\t', 1)), ('setPosition', (8, 1)), ('defineSlot', (u'main', [('beginScope', {u'define-slot': u'main'}), ('optTag', (u'metal:main-slot', None, 'metal', 0, [('startTag', (u'metal:main-slot', [(u'define-slot', u'main', 'metal')]))], [('rawtextColumn', (u'\n\t', 1))])), ('endScope', ())])), ('setPosition', (9, 1)), ('setSourceFile', 'file:/home/moo/workspace2/collective.skinny/collective/skinny/skins/skinny_faux_layer/main_template.pt'), ('rawtextColumn', (u'\n', 0))])), ('endScope', ())]}, 'master'))

Some template tries to call macro inside another template and the macro is not defined in the target template.

いくつかのテンプレートは、他のテンプレートを内部でマクロ呼び出していて、そのマクロがターゲットテンプレートで定義されていない。

AttributeError in setRoles due to workflow state transition

例:

Traceback (innermost last):
Module ZPublisher.Publish, line 115, in publish
Module ZPublisher.mapply, line 88, in mapply
Module ZPublisher.Publish, line 41, in call_object
Module Products.CMFPlone.FactoryTool, line 361, in __call__
Module Products.CMFPlone.FactoryTool, line 147, in __getitem__
Module Products.CMFPlone.PloneFolder, line 406, in invokeFactory
Module Products.CMFCore.TypesTool, line 934, in constructContent
Module Products.CMFCore.TypesTool, line 345, in constructInstance
Module Products.CMFCore.TypesTool, line 357, in _finishConstruction
Module Products.CMFCore.CMFCatalogAware, line 145, in notifyWorkflowCreated
Module Products.CMFCore.WorkflowTool, line 355, in notifyCreated
Module Products.DCWorkflow.DCWorkflow, line 392, in notifyCreated
Module Products.DCWorkflow.DCWorkflow, line 476, in _changeStateOf
Module Products.DCWorkflow.DCWorkflow, line 571, in _executeTransition
Module Products.DCWorkflow.DCWorkflow, line 435, in updateRoleMappingsFor
Module Products.DCWorkflow.utils, line 60, in modifyRolesForPermission
Module AccessControl.Permission, line 93, in setRoles
AttributeError: appname

考えられる理由

1. AnnotationStorage を使っているが、クラス本体で忘れて atapi.ATFieldProperty を宣言している。
2. Archetypes スキーマに内在するが、そのクラスを継承していない。

アドオンインストーラエラー: too many values to unpack

例外はクイックインストーラを実行できなくする。

例:

  Module ZPublisher.Publish, line 119, in publish
  Module ZPublisher.mapply, line 88, in mapply
  Module ZPublisher.Publish, line 42, in call_object
  Module Products.CMFQuickInstallerTool.QuickInstallerTool, line 589, in installProducts
  Module Products.CMFQuickInstallerTool.QuickInstallerTool, line 475, in installProduct
   - __traceback_info__: ('gomobile.mobile',)
  Module Products.CMFQuickInstallerTool.QuickInstallerTool, line 396, in snapshotPortal
  Module five.localsitemanager.registry, line 194, in registeredUtilities
  Module zope.component.registry, line 127, in registeredUtilities
ValueError: too many values to unpack

理由:

Data.fs が zope.component 3.5.1 で使われていたが、その Data.fs がダウングレードされたか、別の場所から移動された。 zope.component はバージョン3.5.1に固定する必要がある。

これに関連するディスカッション(英語).

Add-on installer error: This object was originally created by a product that is no longer installed

Example:

2009-10-18 13:11:20 ERROR Zope.SiteErrorLog 1255860680.760.514176531634 http://localhost:8080/twinapex/portal_quickinstaller/installProducts
Traceback (innermost last):
  Module ZPublisher.Publish, line 125, in publish
  Module Zope2.App.startup, line 238, in commit
  Module transaction._manager, line 93, in commit
  Module transaction._transaction, line 325, in commit
  Module transaction._transaction, line 424, in _commitResources
  Module ZODB.Connection, line 541, in commit
  Module ZODB.Connection, line 586, in _commit
  Module ZODB.Connection, line 620, in _store_objects
  Module ZODB.serialize, line 407, in serialize
  Module OFS.Uninstalled, line 40, in __getstate__
SystemError: This object was originally created by a product that
            is no longer installed.  It cannot be updated.
            (<Salt at broken>)

Data.fs contains objects for which the code is not present. You have probably moved Data.fs or edited buildout.cfg.

Check that eggs and zcml contain all necessary products in buildout.cfg.

Discussion

• http://plone.org/support/forums/general#nabble-td3523234
• http://article.gmane.org/gmane.comp.web.zope.plone.setup/3232

z3c.form based form updateWidgets() raises ComponentLookupError

Example:

Error in test test_render_form (gomobile.convergence.tests.test_mobile_overrides.TestMobileOverrides)
Traceback (most recent call last):
  File "/Users/moo/twinapex/twinapex/parts/zope2/lib/python/Testing/ZopeTestCase/profiler.py", line 98, in __call__
    testMethod()
  File "/Users/moo/twinapex/twinapex/src/gomobile.convergence/gomobile/convergence/tests/test_mobile_overrides.py", line 65, in test_render_form
    result()
  File "/Users/moo/twinapex/twinapex/eggs/z3c.form-1.9.0-py2.4.egg/z3c/form/form.py", line 189, in __call__
    self.update()
  File "/Users/moo/twinapex/twinapex/eggs/z3c.form-1.9.0-py2.4.egg/z3c/form/form.py", line 184, in update
    super(Form, self).update()
  File "/Users/moo/twinapex/twinapex/eggs/z3c.form-1.9.0-py2.4.egg/z3c/form/form.py", line 134, in update
    self.updateWidgets()
  File "/Users/moo/twinapex/twinapex/eggs/z3c.form-1.9.0-py2.4.egg/z3c/form/form.py", line 120, in updateWidgets
    self.widgets = zope.component.getMultiAdapter(
  File "/Users/moo/twinapex/twinapex/eggs/zope.component-3.5.1-py2.4.egg/zope/component/_api.py", line 104, in getMultiAdapter
    raise ComponentLookupError(objects, interface, name)
ComponentLookupError: ((<Products.Five.metaclass.documentoverriderform object at 0x711c6f0>, <HTTPRequest, URL=http://nohost>, <ATDocument at /plone/doc>), <InterfaceClass z3c.form.interfaces.IWidgets>, u'')

Reason: To use z3c.form based forms z3c.form.interfaces.IFormRequest must be enabled for HTTP request object to make form layer adaptions work.

How to fix:

• Wrap views with plone.z3cform.layout.wrap_form

NotFound error (Page not found) when accessing @@manage-portlets

If you get Page not found error when accessing @@manage-portlets the first thing you need to do is to enable logging of NotFound exceptions in ZMI in error_log.

After that reload @@manage-portlets.

When you try to access @@manage-portlets an exception a NotFound exception is raised:

2009-11-09 12:56:13 ERROR Zope.SiteErrorLog 1257764173.180.738005333766 http://localhost:8080/saariselka/@@manage-portlets
Traceback (innermost last):
  Module ZPublisher.Publish, line 119, in publish
    Module Products.PageTemplates.Expressions, line 223, in evaluateStructure
    ...
  Module zope.tales.tales, line 696, in evaluate
   - URL: file:/Users/moo/workspace/plonetheme.saariselka/plonetheme/saariselka/skins/plonetheme_saariselka_custom_templates/main_template.pt
   - Line 92, Column 18
   - Expression: <StringExpr u'plone.leftcolumn'>
   - Names:
      {'container': <PloneSite at /saariselka>,
       'context': <PloneSite at /saariselka>,
       'default': <object object at 0x194520>,
       'here': <PloneSite at /saariselka>,
       'loop': {},
       'nothing': None,
       'options': {'args': (<Products.Five.metaclass.SimpleViewClass from /Users/moo/saariselka/eggs/plone.app.portlets-1.2-py2.4.egg/plone/app/portlets/browser/templates/manage-contextual.pt object at 0x67e43b0>,)},
       'repeat': <Products.PageTemplates.Expressions.SafeMapping object at 0x73b59b8>,
       'request': <HTTPRequest, URL=http://localhost:8080/saariselka/@@manage-portlets>,
       'root': <Application at >,
       'template': <ImplicitAcquirerWrapper object at 0x73b29f0>,
       'traverse_subpath': [],
       'user': <PropertiedUser 'admin'>,
       'view': <Products.Five.metaclass.SimpleViewClass from /Users/moo/saariselka/eggs/plone.app.portlets-1.2-py2.4.egg/plone/app/portlets/browser/templates/manage-contextual.pt object at 0x67e43b0>,
       'views': <zope.app.pagetemplate.viewpagetemplatefile.ViewMapper object at 0x73b23d0>}
  Module Products.Five.browser.providerexpression, line 37, in __call__
  ...
  Module zope.tales.tales, line 696, in evaluate
   - URL: index
   - Line 18, Column 12
   - Expression: <PathExpr standard:'view/addable_portlets'>
   - Names:
      {'container': <PloneSite at /saariselka>,
       'context': <PloneSite at /saariselka>,
       'default': <object object at 0x194520>,
       'here': <PloneSite at /saariselka>,
       'loop': {},
       'nothing': None,
       'options': {'args': ()},
       'repeat': <Products.PageTemplates.Expressions.SafeMapping object at 0x7941be8>,
       'request': <HTTPRequest, URL=http://localhost:8080/saariselka/@@manage-portlets>,
       'root': <Application at >,
       'template': <ImplicitAcquirerWrapper object at 0x78be050>,
       'traverse_subpath': [],
       'user': <PropertiedUser 'admin'>,
       'view': <plone.app.portlets.browser.editmanager.ContextualEditPortletManagerRenderer object at 0x789eb90>,
       'views': <zope.app.pagetemplate.viewpagetemplatefile.ViewMapper object at 0x790a870>}
  Module zope.tales.expressions, line 217, in __call__
  Module Products.PageTemplates.Expressions, line 163, in _eval
  Module Products.PageTemplates.Expressions, line 125, in render
  Module plone.app.portlets.browser.editmanager, line 154, in addable_portlets
  Module plone.app.portlets.browser.editmanager, line 149, in check_permission
  Module OFS.Traversable, line 301, in restrictedTraverse
  Module OFS.Traversable, line 284, in unrestrictedTraverse
   - __traceback_info__: ([], 'collective.easytemplate.TemplatedPortlet')
NotFound: collective.easytemplate.TemplatedPortlet

This usually means that your site has an portlet assignment which code is not present anymore.

In this case you can see that portlet type “collective.easytemplate.TemplatedPortlet” is missing.

A” Check that you include the corresponding product (collective.easytemplate) in eggs= section in buildout.cfg

• Reinstall removed egg which has the code for the portlet
• Check that you include the corresponding product (collective.easytemplate) in zcml= section in buildout.cfg
• Make sure that portlet name is the same in ZCML and GenericSetup XML
• Make sure you use <include package=”.portlets” /> in your code

AttributeError: getPhysicalPath()

  Module zope.tal.talinterpreter, line 408, in do_startTag
  Module zope.tal.talinterpreter, line 485, in attrAction_tal
  Module Products.PageTemplates.Expressions, line 230, in evaluateText
  Module zope.tales.tales, line 696, in evaluate
   - URL: edit_header
   - Line 25, Column 14
   - Expression: <PythonExpr (view.getHeaderDefiner().absolute_url())>
   - Names:
      {'container': <Frontpage at /saariselka/matkailijalle/saariselka-1>,
       'context': <Frontpage at /saariselka/matkailijalle/saariselka-1>,
       'default': <object object at 0x7fabf9cec1f0>,
       'here': <Frontpage at /saariselka/matkailijalle/saariselka-1>,
       'loop': {},
       'nothing': None,
       'options': {'args': ()},
       'repeat': <Products.PageTemplates.Expressions.SafeMapping object at 0xe617d88>,
       'request': <HTTPRequest, URL=http://localhost:9444/saariselka/matkailijalle/saariselka-1/@@edit_header>,
       'root': <Application at >,
       'template': <ImplicitAcquirerWrapper object at 0xe6105d0>,
       'traverse_subpath': [],
       'user': <PropertiedUser 'admin'>,
       'view': <Products.Five.metaclass.EditHeaderBehaviorView object at 0xe51ed10>,
       'views': <zope.app.pagetemplate.viewpagetemplatefile.ViewMapper object at 0xe610c10>}
  Module zope.tales.pythonexpr, line 59, in __call__
   - __traceback_info__: (view.getHeaderDefiner().absolute_url())
  Module <string>, line 0, in ?
  Module OFS.Traversable, line 64, in absolute_url
  Module OFS.Traversable, line 117, in getPhysicalPath
AttributeError: getPhysicalPath

Another possibility:

AttributeError: absolute_url

This usually means that you should have used context.aq_inner when you have used context. absolute_url() tries to get the path to the object, but object parent is set to view (context.aq_parent) instead of real container object (context.aq_inner.aq_parent).

警告

When setting a member attribute in BrowserView, the acquisition parent of objec changes to BrowserView instance. All member attributes receive ImplicitAcquisitionWrapper automatically.

Demostration

We try to set BrowserView member attribute defining_context to be some context object.

(Pdb) self.defining_context = context (Pdb) context.aq_parent <PloneSite at /plone> (Pdb) self.defining_context.aq_parent <Products.Five.metaclass.HeaderAnimationHelper object at 0xadb5750> (Pdb) self.defining_context.aq_inner.aq_parent <Products.Five.metaclass.HeaderAnimationHelper object at 0xadb5750> (Pdb) self.defining_context.aq_parent.aq_parent <ATDocument at /plone/doc> (Pdb) self.defining_context.aq_parent.aq_parent.aq_inner <ATDocument at /plone/doc> (Pdb) self.defining_context.aq_parent.aq_parent.aq_parent <PloneSite at /plone>

To get the real object (as it was before set was called) you can create a helper getter:

def getDefiningContext(self):
    """
    Un-fuse automatically injected view from the acquisition chain

    @return: Real defining context object without bad acquistion
    """
    if self.defining_context is not None:
        return self.defining_context.aq_parent.aq_inner.aq_parent
    return None

RuntimeError: maximum recursion depth exceeded (Archetypes field problem)

Example:

   atapi.ImageField(
        'memberimage',
        # storage=atapi.AnnotationStorage(), # paster version
        storage=atapi.AttributeStorage(), # results in "max recursion depth exceeded" error
        widget=atapi.ImageWidget(
            label=_(u"New Field"),
            description=_(u"Field description"),
        ),
        validators=('isNonEmptyFile'),
        original_size=(600,600),
        sizes={ 'mini' : (80,80),
                'normal' : (200,200),
                'big' : (300,300),
                'maxi' : (500,500)},
    ),


This results in an exception when I try to access the object:

   - __traceback_info__: ('memberimage', <TTMemberImage at tt_member_image.2010-01-23.8138248069>, {'field': <Field memberimage(image:rw)>})
  Module Products.Archetypes.Storage, line 96, in get
  Module Products.Archetypes.utils, line 808, in shasattr
  Module Products.Archetypes.fieldproperty, line 101, in __get__
  Module Products.Archetypes.Field, line 997, in get
  Module Products.Archetypes.Field, line 709, in get
   - __traceback_info__: ('memberimage', <TTMemberImage at tt_member_image.2010-01-23.8138248069>, {'field': <Field memberimage(image:rw)>})
RuntimeError: maximum recursion depth exceeded

Reason: Schema fields using AttributeStorage (usually images, files) cannot have ATFieldProperty in the class:

class Sample(base.ATCTContent):

    # This does not work with AttributeStorage
    memberimage = atapi.ATFieldProperty('memberimage')

To fix this simply remobe ATFieldProperty() declaration for the problematic field. You cannot access the field value anymore by calling object.memberimage but you need to call object.getMemberimage() instead.

Invalid or Duplicate property id

The following exception may appear during Plone migration to the newer version:

    *   Dry run selected.
    * Starting the migration from version: 3.1.4
    * Attempting to upgrade from: 3.1.4
    * Upgrade aborted
    * Error type: zExceptions.BadRequest
    * Error value: Invalid or duplicate property id
    * File
"/usr/local/Plone3.2.3/buildout-cache/eggs/Plone-3.3-py2.4.egg/Products/CMFPlone/MigrationTool.py",
line 210, in upgrade newv, msgs = self._upgrade(newv)
    * File
"/usr/local/Plone3.2.3/buildout-cache/eggs/Plone-3.3-py2.4.egg/Products/CMFPlone/MigrationTool.py",
line 321, in _upgrade res = function(self.aq_parent)
    * File
"/usr/local/Plone3.2.3/buildout-cache/eggs/Plone-3.3-py2.4.egg/Products/CMFPlone/migrations/v3_1/final_three1x.py",
line 15, in three14_three15 loadMigrationProfile(portal,
'profile-Products.CMFPlone.migrations:3.1.3-3.1.4')
    * File
"/usr/local/Plone3.2.3/buildout-cache/eggs/Plone-3.3-py2.4.egg/Products/CMFPlone/migrations/migration_util.py",
line 107, in loadMigrationProfile tool.runAllImportStepsFromProfile(profile,
purge_old=False)
    * File
"/usr/local/Plone3.2.3/buildout-cache/eggs/Products.GenericSetup-1.4.5-py2.4.egg/Products/GenericSetup/tool.py",
line 390, in runAllImportStepsFromProfile
ignore_dependencies=ignore_dependencies)
    * File
"/usr/local/Plone3.2.3/buildout-cache/eggs/Products.GenericSetup-1.4.5-py2.4.egg/Products/GenericSetup/tool.py",
line 1179, in _runImportStepsFromContext message =
self._doRunImportStep(step, context)
    * File
"/usr/local/Plone3.2.3/buildout-cache/eggs/Products.GenericSetup-1.4.5-py2.4.egg/Products/GenericSetup/tool.py",
line 1090, in _doRunImportStep return handler(context)
    * File
"/usr/local/Plone3.2.3/buildout-cache/eggs/Plone-3.3-py2.4.egg/Products/CMFPlone/exportimport/propertiestool.py",
line 37, in importPloneProperties importer.body = body
    * File
"/usr/local/Plone3.2.3/buildout-cache/eggs/Products.GenericSetup-1.4.5-py2.4.egg/Products/GenericSetup/utils.py",
line 544, in _importBody self._importNode(dom.documentElement)
    * File
"/usr/local/Plone3.2.3/buildout-cache/eggs/Plone-3.3-py2.4.egg/Products/CMFPlone/exportimport/propertiestool.py",
line 103, in _importNode self._initObjects(node)
    * File
"/usr/local/Plone3.2.3/buildout-cache/eggs/Plone-3.3-py2.4.egg/Products/CMFPlone/exportimport/propertiestool.py",
line 154, in _initObjects importer.node = child
    * File
"/usr/local/Plone3.2.3/buildout-cache/eggs/Plone-3.3-py2.4.egg/Products/CMFPlone/exportimport/propertiestool.py",
line 77, in _importNode self._initProperties(node)
    * File
"/usr/local/Plone3.2.3/buildout-cache/eggs/Products.GenericSetup-1.4.5-py2.4.egg/Products/GenericSetup/utils.py",
line 724, in _initProperties obj._setProperty(prop_id, val, prop_type)
    * File
"/usr/local/Plone3.2.3/Zope-2.10.7-final-py2.4/lib/python/OFS/PropertyManager.py",
line 186, in _setProperty raise BadRequest, 'Invalid or duplicate property
id'
    * End of upgrade path, migration has finished
    * The upgrade path did NOT reach current version
    * Migration has failed
    * Dry run selected, transaction aborted

It is caused by a property (site setting) which already exists and migration tries to create it. The usual reason is that one has edited site settings in new Plone version before running the migration.

Try remove violating property ids from the site_properties manually in Zope.

Potential candidates to be removed:

• enable_inline_editing
• lock_on_ttw_edit (boolean)

Potential candidates which need to be added manually:

• redirect_links (boolean)

More info:

• http://www.mail-archive.com/setup@lists.plone.org/msg03988.html

TraversalError: No traversable adapter found

Traceback (innermost last):

• Module ZPublisher.Publish, line 202, in publish_module_standard
• Module Products.LinguaPlone.patches, line 66, in new_publish
• Module ZPublisher.Publish, line 150, in publish
• Module Zope2.App.startup, line 221, in zpublisher_exception_hook
• Module ZPublisher.Publish, line 119, in publish
• Module ZPublisher.mapply, line 88, in mapply
• Module ZPublisher.Publish, line 42, in call_object
• Module Shared.DC.Scripts.Bindings, line 313, in __call__
• Module Shared.DC.Scripts.Bindings, line 350, in _bindAndExec
• Module Products.CMFCore.FSPageTemplate, line 216, in _exec
• Module Products.CMFCore.FSPageTemplate, line 155, in pt_render
• Module Products.PageTemplates.PageTemplate, line 98, in pt_render
• Module zope.pagetemplate.pagetemplate, line 117, in pt_render Warning: Macro expansion failed Warning: zope.traversing.interfaces.TraversalError: (‘No traversable adapter found’,

This traceback is followed by long dump of template code internals.

Usual cause: Some add-on product fails to initialize.

Start Zope in foreground mode (bin/instance fg) to see which product fails.

ImportError: Inappropriate file type for dynamic loading

Exception when starting Zope:

  File "/Users/moo/twinapex/twinapex/parts/zope2/lib/python/ZConfig/datatypes.py", line 398, in get
    t = self.search(name)
  File "/Users/moo/twinapex/twinapex/parts/zope2/lib/python/ZConfig/datatypes.py", line 423, in search
    package = __import__(n, g, g, component)
  File "/Users/moo/twinapex/twinapex/parts/zope2/lib/python/Zope2/Startup/datatypes.py", line 20, in ?
    from ZODB.config import ZODBDatabase
  File "/Users/moo/twinapex/twinapex/eggs/ZODB3-3.8.2-py2.4-macosx-10.6-i386.egg/ZODB/__init__.py", line 20, in ?
    from persistent import TimeStamp
  File "/Users/moo/twinapex/twinapex/eggs/ZODB3-3.8.2-py2.4-macosx-10.6-i386.egg/persistent/__init__.py", line 19, in ?
    from cPersistence import Persistent, GHOST, UPTODATE, CHANGED, STICKY
ImportError: Inappropriate file type for dynamic loading

You probably have files lying over from wrong CPU architecture

• Hand copied eggs between servers
• Migrated OS to new version
• You have several Python interpreters installed and you try to run Zope using the wrong interpreter (the one which the code is not compiled for)

How to solve problem

• Delete /parts and /eggs buildout folders, run bootstrap, run buildout.

BadRequest: The id “xxx” is invalid - it is already in use.

Traceback example:

...
Module Products.CMFFormController.Script, line 145, in __call__
Module Products.CMFCore.FSPythonScript, line 140, in __call__
Module Shared.DC.Scripts.Bindings, line 313, in __call__
Module Shared.DC.Scripts.Bindings, line 350, in _bindAndExec
Module Products.CMFCore.FSPythonScript, line 196, in _exec
Module None, line 1, in content_edit
<FSControllerPythonScript at /xxx/content_edit used for /xxx/sisalto/lomapalvelut/portal_factory/HolidayService/aktiviteetit>
Line 1
Module Products.CMFCore.FSPythonScript, line 140, in __call__
Module Shared.DC.Scripts.Bindings, line 313, in __call__
Module Shared.DC.Scripts.Bindings, line 350, in _bindAndExec
Module Products.CMFCore.FSPythonScript, line 196, in _exec
Module None, line 9, in content_edit_impl
<FSPythonScript at /xxx/content_edit_impl used for /xxx/sisalto/lomapalvelut/portal_factory/HolidayService/aktiviteetit>
Line 9
Module Products.CMFPlone.FactoryTool, line 264, in doCreate
Module Products.ATContentTypes.lib.constraintypes, line 281, in invokeFactory
Module Products.CMFCore.PortalFolder, line 315, in invokeFactory
Module Products.CMFCore.TypesTool, line 716, in constructContent
Module Products.CMFCore.TypesTool, line 276, in constructInstance
Module Products.CMFCore.TypesTool, line 450, in _constructInstance
Module xxx.app.content.holidayservice, line 7, in addHolidayService
Module OFS.ObjectManager, line 315, in _setObject
Module Products.CMFCore.PortalFolder, line 333, in _checkId
Module OFS.ObjectManager, line 102, in checkValidId
BadRequest: The id "holidayservice.2010-03-18.4474765045" is invalid - it is already in use.

TODO: Not really sure why this happens.

Try portal_catalog rebuild as a fix.

Exception: Type name not specified in createObject

Example traceback:

Module ZPublisher.Publish, line 119, in publish
Module ZPublisher.mapply, line 88, in mapply
Module ZPublisher.Publish, line 42, in call_object
Module Products.CMFFormController.FSControllerPythonScript, line 104, in __call__
Module Products.CMFFormController.Script, line 145, in __call__
Module Products.CMFCore.FSPythonScript, line 140, in __call__
Module Shared.DC.Scripts.Bindings, line 313, in __call__
Module Shared.DC.Scripts.Bindings, line 350, in _bindAndExec
Module Products.CMFCore.FSPythonScript, line 196, in _exec
Module None, line 11, in createObject
<FSControllerPythonScript at /xxx/createObject used for /xxx/sisalto/lomapalvelut>
Line 11
Exception: Type name not specified

This is TODO

Unauthorized: The object is marked as private

This error is raised when you try to access view functions or objects for a view, which you call manually from the code.

Example traceback:

  File "/home/moo/twinapex/parts/zope2/lib/python/zope/tales/expressions.py", line 124, in _eval
    ob = self._traverser(ob, element, econtext)
  File "/home/moo/twinapex/parts/zope2/lib/python/Products/PageTemplates/Expressions.py", line 105, in trustedBoboAwareZopeTraverse
    request=request)
  File "/home/moo/twinapex/parts/zope2/lib/python/zope/traversing/adapters.py", line 164, in traversePathElement
    return traversable.traverse(nm, further_path)
  File "/home/moo/twinapex/parts/zope2/lib/python/zope/traversing/adapters.py", line 44, in traverse
    attr = getattr(subject, name, _marker)
  File "/home/moo/twinapex/parts/zope2/lib/python/Shared/DC/Scripts/Bindings.py", line 184, in __getattr__
    return guarded_getattr(self._wrapped, name, default)
  File "/home/moo/twinapex/parts/zope2/lib/python/AccessControl/ImplPython.py", line 563, in validate
    self._context)
  File "/home/moo/twinapex/parts/zope2/lib/python/AccessControl/ImplPython.py", line 443, in validate
    accessed, container, name, value, context)
  File "/home/moo/twinapex/parts/zope2/lib/python/AccessControl/ImplPython.py", line 808, in raiseVerbose
    raise Unauthorized(text)
Unauthorized: The object is marked as private.  Access to 'showVideo' of (Products.Five.metaclass.SimpleViewClass from /home/moo/twinapex/src/mfabrik.app/mfabrik/app/browser/campaigntopview.pt object at 0x11003a0c) denied.

View acquisition chain is not properly set up and the security manager cannot traverse acquisition chain parents to properly determine permissions.

You need to use __of__() method to set-up the acquisition chain for the view:

def getHeadingView(self):
    """
    Check if we have campaign view avaiable for this content and use it.
    """
    view = queryMultiAdapter((self.context, self.request), name="mfabrik_heading")
    view = view.__of__(self.context) # <---------- here
    return view

ImportError: No module named PIL

Example:

Traceback (most recent call last):
  File "/home/moo/isleofback/parts/zope2/lib/python/OFS/Application.py", line 709, in import_product
    product=__import__(pname, global_dict, global_dict, silly)
  File "/home/moo/isleofback/eggs/Products.ATContentTypes-1.3.4-py2.4.egg/Products/ATContentTypes/__init__.py", line 64, in ?
    import Products.ATContentTypes.content
  File "/home/moo/isleofback/eggs/Products.ATContentTypes-1.3.4-py2.4.egg/Products/ATContentTypes/content/__init__.py", line 26, in ?
    import Products.ATContentTypes.content.link
  File "/home/moo/isleofback/eggs/Products.ATContentTypes-1.3.4-py2.4.egg/Products/ATContentTypes/content/link.py", line 39, in ?
    from Products.ATContentTypes.content.base import registerATCT
  File "/home/moo/isleofback/eggs/Products.ATContentTypes-1.3.4-py2.4.egg/Products/ATContentTypes/content/base.py", line 63, in ?
    from Products.CMFPlone.PloneFolder import ReplaceableWrapper
  File "/home/moo/isleofback/eggs/Plone-3.3.5-py2.4.egg/Products/CMFPlone/__init__.py", line 215, in ?
    from browser import ploneview
  File "/home/moo/isleofback/eggs/Plone-3.3.5-py2.4.egg/Products/CMFPlone/browser/ploneview.py", line 12, in ?
    from Products.CMFPlone import utils
  File "/home/moo/isleofback/eggs/Plone-3.3.5-py2.4.egg/Products/CMFPlone/utils.py", line 6, in ?
    from PIL import Image
ImportError: No module named PIL
Traceback (most recent call last):
  File "/home/moo/isleofback/bin/idelauncher.py", line 140, in ?
    execfile(ZOPE_RUN)
  File "/home/moo/isleofback/bin/../parts/zope2/lib/python/Zope2/Startup/run.py", line 56, in ?
    run()
  File "/home/moo/isleofback/bin/../parts/zope2/lib/python/Zope2/Startup/run.py", line 21, in run
    starter.prepare()
  File "/home/moo/isleofback/parts/zope2/lib/python/Zope2/Startup/__init__.py", line 102, in prepare
    self.startZope()
  File "/home/moo/isleofback/parts/zope2/lib/python/Zope2/Startup/__init__.py", line 278, in startZope
    Zope2.startup()
  File "/home/moo/isleofback/parts/zope2/lib/python/Zope2/__init__.py", line 47, in startup
    _startup()
  File "/home/moo/isleofback/parts/zope2/lib/python/Zope2/App/startup.py", line 45, in startup
    OFS.Application.import_products()
  File "/home/moo/isleofback/parts/zope2/lib/python/OFS/Application.py", line 686, in import_products
    import_product(product_dir, product_name, raise_exc=debug_mode)
  File "/home/moo/isleofback/parts/zope2/lib/python/OFS/Application.py", line 709, in import_product
    product=__import__(pname, global_dict, global_dict, silly)
  File "/home/moo/isleofback/eggs/Products.ATContentTypes-1.3.4-py2.4.egg/Products/ATContentTypes/__init__.py", line 64, in ?
    import Products.ATContentTypes.content
  File "/home/moo/isleofback/eggs/Products.ATContentTypes-1.3.4-py2.4.egg/Products/ATContentTypes/content/__init__.py", line 26, in ?
    import Products.ATContentTypes.content.link
  File "/home/moo/isleofback/eggs/Products.ATContentTypes-1.3.4-py2.4.egg/Products/ATContentTypes/content/link.py", line 39, in ?
    from Products.ATContentTypes.content.base import registerATCT
  File "/home/moo/isleofback/eggs/Products.ATContentTypes-1.3.4-py2.4.egg/Products/ATContentTypes/content/base.py", line 63, in ?
    from Products.CMFPlone.PloneFolder import ReplaceableWrapper
  File "/home/moo/isleofback/eggs/Plone-3.3.5-py2.4.egg/Products/CMFPlone/__init__.py", line 215, in ?
    from browser import ploneview
  File "/home/moo/isleofback/eggs/Plone-3.3.5-py2.4.egg/Products/CMFPlone/browser/ploneview.py", line 12, in ?
    from Products.CMFPlone import utils
  File "/home/moo/isleofback/eggs/Plone-3.3.5-py2.4.egg/Products/CMFPlone/utils.py", line 6, in ?
    from PIL import Image
ImportError: No module named PIL

Python Imaging Library is not properly installed. The default PIL package does not work nicely as egg.

Remove all existing PIL eggs from buildout/eggs folder.

Install PIL for your development Python environment:

easy_install http://dist.repoze.org/PIL-1.1.6.tar.gz

NotFound while accessing a BrowserView based view

You’ll get a NotFound error when accessing view using view traverse notation, event though the view exist.

Example URL:

http://yoursite/@@myview

Example traceback:

Traceback (innermost last):
  Module ZPublisher.Publish, line 110, in publish
  Module ZPublisher.BaseRequest, line 506, in traverse
  Module ZPublisher.HTTPResponse, line 686, in debugError
NotFound:   <h2>Site Error</h2>

This is because there is an exception raised in your view’s __init__() method. Views are Zope multi-adapters. Exception in multi-adapter factory method causes ComponentLookUpError. Zope 2 publisher translates this to NotFound error.

How to fix

• Put pdb break statement to the beginning of the __init__() method of your view. Then step through view code to see where the exception is raisen.
• If your view does not have __init__() method, then copy the source code __init__() method to your view class from the first parent class which has a view

ContentProviderLookupError: plone.htmlhead

Example traceback:

  Module zope.tales.tales, line 696, in evaluate
   - URL: file:/home/moo/isleofback/eggs/Plone-3.3.5-py2.4.egg/Products/CMFPlone/skins/plone_templates/main_template.pt
   - Line 39, Column 4
   - Expression: <StringExpr u'plone.htmlhead'>
   - Names:
      {'container': <PloneSite at /isleofback>,
       'context': <PloneSite at /isleofback>,
       'default': <object object at 0xb75f2528>,
       'here': <PloneSite at /isleofback>,
       'loop': {},
       'nothing': None,
       'options': {'args': (<isleofback.app.browser.company.CompanyCreationForm object at 0xea5e80c>,)},
       'repeat': <Products.PageTemplates.Expressions.SafeMapping object at 0xea62dcc>,
       'request': <HTTPRequest, URL=http://localhost:9666/isleofback/@@create_company>,
       'root': <Application at >,
       'template': <ImplicitAcquirerWrapper object at 0xea62bcc>,
       'traverse_subpath': [],
       'user': <PropertiedUser 'admin'>,
       'view': <UnauthorizedBinding: context>,
       'views': <zope.app.pagetemplate.viewpagetemplatefile.ViewMapper object at 0xea62d2c>}
  Module Products.Five.browser.providerexpression, line 25, in __call__
ContentProviderLookupError: plone.htmlhead

This is not a bug in Zope. It is caused by trying to render a Plone page frame in an context which has not acquisition chain properly set up. Plone main_template.pt tries to look up viewlet managers by acquistion traversing to parent objects. plone.htmlhead is the first viewlet manager to be looked up like this, and it will fail firstly.

Some possible causes

• You are trying to embed main_template inside form/view which is already rendered in main_template frame. Please see how to embed forms and wrap forms manually.
• You might be using wrong ViewPageTemplate import (Five vs. zope.pagetemplate - explained elsewhere in this documentation)
• Make sure that you call __of__() method for views and other objects you construct by hand which expects themselves to be in the acquisition chain (normally discovered by traversing)

See

• https://bugs.launchpad.net/zope2/+bug/176566

Error while installing a new portlet portlets.xml: unbound prefix

Example traceback:

Traceback (innermost last):
  Module plone.postpublicationhook.hook, line 74, in publish
  Module ZPublisher.mapply, line 88, in mapply
  Module ZPublisher.Publish, line 42, in call_object
  Module Products.CMFQuickInstallerTool.QuickInstallerTool, line 589, in installProducts
  Module Products.CMFQuickInstallerTool.QuickInstallerTool, line 526, in installProduct
   - __traceback_info__: ('mfabrik.app',)
  Module Products.GenericSetup.tool, line 390, in runAllImportStepsFromProfile
   - __traceback_info__: profile-mfabrik.app:default
  Module Products.GenericSetup.tool, line 1179, in _runImportStepsFromContext
  Module Products.GenericSetup.tool, line 1090, in _doRunImportStep
   - __traceback_info__: portlets
  Module plone.app.portlets.exportimport.portlets, line 707, in importPortlets
  Module Products.GenericSetup.utils, line 543, in _importBody
ExpatError: portlets.xml: unbound prefix: line 15, column 1

Answer:

You have i18n:attributes="title; description" in your portlets.xml. Remove it or declare i18n namespace in XML.

ImportError: Couldn’t import ZPublisherEventsBackport

The following traceback on instance start-up:

  File "/Users/moo/twinapex/parts/zope2/lib/python/zope/configuration/config.py", line 1383, in toargs
    args[str(name)] = field.fromUnicode(s)
  File "/Users/moo/twinapex/parts/zope2/lib/python/zope/configuration/fields.py", line 141, in fromUnicode
    raise schema.ValidationError(v)
zope.configuration.xmlconfig.ZopeXMLConfigurationError: File "/Users/moo/twinapex/parts/instance/etc/site.zcml", line 14.2-14.55
    ZopeXMLConfigurationError: File "/Users/moo/twinapex/parts/instance/etc/package-includes/009-gomobile.mobile-configure.zcml", line 1.0-1.59
    ZopeXMLConfigurationError: File "/Users/moo/twinapex/src/gomobile.mobile/gomobile/mobile/configure.zcml", line 15.4-15.51
    ZopeXMLConfigurationError: File "/Users/moo/twinapex/eggs/plone.postpublicationhook-1.1-py2.4.egg/plone/postpublicationhook/configure.zcml", line 5.4-8.10
    ConfigurationError: ('Invalid value for', 'package', "ImportError: Couldn't import ZPublisherEventsBackport, No module named ZPublisherEventsBackport")

plone.postpublicationhook 1.1 depends on new package, ZPublisherEventsBackport, for Plone 3.3. You eed to include them both in your buildout. You need to include both eggs:

eggs =
        ZPublisherEventsBackport
        plone.postpublicationhook

ERROR ZODB.Connection Couldn’t load state for 0x00

The following traceback pops up when you try to start Zope:

2010-07-14 05:02:33 ERROR ZODB.Connection Couldn't load state for 0x00
Traceback (most recent call last):
  File "/Users/moo/saariselka/eggs/ZODB3-3.8.4-py2.4-macosx-10.6-i386.egg/ZODB/Connection.py", line 811, in setstate
    self._setstate(obj)
  File "/Users/moo/saariselka/eggs/ZODB3-3.8.4-py2.4-macosx-10.6-i386.egg/ZODB/Connection.py", line 870, in _setstate
    self._reader.setGhostState(obj, p)
  File "/Users/moo/saariselka/eggs/ZODB3-3.8.4-py2.4-macosx-10.6-i386.egg/ZODB/serialize.py", line 604, in setGhostState
    state = self.getState(pickle)
  File "/Users/moo/saariselka/eggs/ZODB3-3.8.4-py2.4-macosx-10.6-i386.egg/ZODB/serialize.py", line 597, in getState
    return unpickler.load()
  File "/Users/moo/saariselka/eggs/ZODB3-3.8.4-py2.4-macosx-10.6-i386.egg/ZODB/serialize.py", line 471, in _persistent_load
    return self.load_oid(reference)
  File "/Users/moo/saariselka/eggs/ZODB3-3.8.4-py2.4-macosx-10.6-i386.egg/ZODB/serialize.py", line 537, in load_oid
    return self._conn.get(oid)
  File "/Users/moo/saariselka/eggs/ZODB3-3.8.4-py2.4-macosx-10.6-i386.egg/ZODB/Connection.py", line 244, in get
    p, serial = self._storage.load(oid, self._version)
  File "/Users/moo/saariselka/eggs/ZODB3-3.8.4-py2.4-macosx-10.6-i386.egg/ZODB/FileStorage/FileStorage.py", line 470, in load
    pos = self._lookup_pos(oid)
  File "/Users/moo/saariselka/eggs/ZODB3-3.8.4-py2.4-macosx-10.6-i386.egg/ZODB/FileStorage/FileStorage.py", line 462, in _lookup_pos
    raise POSKeyError(oid)
POSKeyError: 0x01

Data.fs might have been damaged. You might be using blobs with Plone 3 and they don’t work perfectly. . . . or a bunch other issues which generally mean that your day is screwed.

See also

• http://plonechix.blogspot.com/2009/12/definitive-guide-to-poskeyerror.html

Zope suddenly dies on OSX without a reason

Symptoms: you do a HTTP request to a Plone site running OSX. Zope quits without a reason.

Reason: Infinite recursion is not properly handled by Python on OSX. This is because OSX C stack size is smaller than Python default stack size. The underlying Python interpreter dies before being able to raise stack size limit exception.

Workaround

Edit python-2.4/lib/python2.4/site.py

Put in to the first code line:

sys.setrecursionlimit(300)

This will force smaller Python stack not exceeding native OSX C stack. You might want to test other values and report back the findings.

More Information

• http://blog.crowproductions.de/2008/12/14/a-buildout-to-tame-the-snake-pit/ (comments)

IOError: [Errno url error] unknown url type: ‘https’

Example traceback:

  File "/home/moo/code/python/parts/opt/lib/python2.4/urllib.py", line 89, in urlretrieve
    return _urlopener.retrieve(url, filename, reporthook, data)
  File "/home/moo/code/python/parts/opt/lib/python2.4/urllib.py", line 222, in retrieve
    fp = self.open(url, data)
  File "/home/moo/code/python/parts/opt/lib/python2.4/urllib.py", line 187, in open
    return self.open_unknown(fullurl, data)
  File "/home/moo/code/python/parts/opt/lib/python2.4/urllib.py", line 199, in open_unknown
    raise IOError, ('url error', 'unknown url type', type)
IOError: [Errno url error] unknown url type: 'https'

Reason: Python and Python socket modules have not been compiled with SSL support.

Make sure that you have SSL development libraries installed (Ubuntu/Debian example)

sudo apt-get install libssl-dev

Make sure that Python is built with SSL support

./configure --with-package=_ssl

You can test Python after compilation:

moo@murskaamo:~/code/python$ source python-2.4/bin/activate
(python-2.4)moo@murskaamo:~/code/python$ python
Python 2.4.6 (#1, Jul 16 2010, 10:31:46)
[GCC 4.4.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import _ssl
>>>

Also you might want try

easy_install pyopenssl

TypeError: len() of unsized object in smtplib

Traceback:

Traceback (innermost last):
  Module ZPublisher.Publish, line 119, in publish
  Module ZPublisher.mapply, line 88, in mapply
  Module ZPublisher.Publish, line 42, in call_object
  Module Products.CMFFormController.FSControllerPageTemplate, line 90, in __call__
  Module Products.CMFFormController.BaseControllerPageTemplate, line 28, in _call
  Module Products.CMFFormController.ControllerBase, line 231, in getNext
  Module Products.CMFFormController.Actions.TraverseTo, line 38, in __call__
  Module ZPublisher.mapply, line 88, in mapply
  Module ZPublisher.Publish, line 42, in call_object
  Module Products.CMFFormController.FSControllerPythonScript, line 104, in __call__
  Module Products.CMFFormController.Script, line 145, in __call__
  Module Products.CMFCore.FSPythonScript, line 140, in __call__
  Module Shared.DC.Scripts.Bindings, line 313, in __call__
  Module Shared.DC.Scripts.Bindings, line 350, in _bindAndExec
  Module Products.CMFCore.FSPythonScript, line 196, in _exec
  Module None, line 102, in order_email
   - <FSControllerPythonScript at /MySite/order_email>
   - Line 102
  Module Products.SecureMailHost.SecureMailHost, line 246, in secureSend
  Module Products.SecureMailHost.SecureMailHost, line 276, in _send
  Module Products.SecureMailHost.mail, line 126, in send
  Module smtplib, line 576, in login
  Module smtplib, line 536, in encode_cram_md5
  Module hmac, line 50, in __init__
TypeError: len() of unsized object

Cause: Your SMTP password has been set empty. Please reset your SMTP password in Mail control panel.

More information

• http://plone.293351.n2.nabble.com/Plone-3-3-5-sending-emails-len-of-unsized-object-error-NO-ESMTP-PASSWORD-tp5415484p5415484.html

NameError: name ‘test’ is not defined

This exception occurs when you try to customize TAL page template code using test() function. test() function has been dropped in Zope 3 page templates. You should no longer use test() function anywhere.

Solution: replace test() with common Python expression in your customized template.

For example the orignal:

tal:attributes="class python:test(here.Format() in ('text/structured', 'text/x-rst', ), 'stx' + kss_class, 'plain', + kss_class)"

would need to be written as:

tal:attributes=”class python:here.Format() in (‘text/structured’, ‘text/x-rst’, ) ‘stx’ + kss_class and ‘plain’ or kss_class”

TraversalError(subject, name) in expressions

You have traceback like:

File "/home/moo/sits/parts/zope2/lib/python/ZPublisher/Publish.py", line 119, in publish
  request, bind=1)
File "/home/moo/sits/parts/zope2/lib/python/ZPublisher/mapply.py", line 88, in mapply
  if debug is not None: return debug(object,args,context)
File "/home/moo/sits/parts/zope2/lib/python/ZPublisher/Publish.py", line 42, in call_object
  result=apply(object,args) # Type s<cr> to step into published object.
File "/home/moo/sits/parts/zope2/lib/python/Products/Five/browser/metaconfigure.py", line 417, in __call__
  return self.index(self, *args, **kw)
File "/home/moo/sits/parts/zope2/lib/python/Shared/DC/Scripts/Bindings.py", line 313, in __call__
  return self._bindAndExec(args, kw, None)
File "/home/moo/sits/parts/zope2/lib/python/Shared/DC/Scripts/Bindings.py", line 350, in _bindAndExec
  return self._exec(bound_data, args, kw)
File "/home/moo/sits/parts/zope2/lib/python/Products/PageTemplates/PageTemplateFile.py", line 129, in _exec
  return self.pt_render(extra_context=bound_names)
File "/home/moo/sits/parts/zope2/lib/python/Products/PageTemplates/PageTemplate.py", line 98, in pt_render
  showtal=showtal)
File "/home/moo/sits/parts/zope2/lib/python/zope/pagetemplate/pagetemplate.py", line 117, in pt_render
  strictinsert=0, sourceAnnotations=sourceAnnotations)()
File "/home/moo/sits/parts/zope2/lib/python/zope/tal/talinterpreter.py", line 271, in __call__
  self.interpret(self.program)
File "/home/moo/sits/parts/zope2/lib/python/zope/tal/talinterpreter.py", line 346, in interpret
  handlers[opcode](self, args)
File "/home/moo/sits/parts/zope2/lib/python/zope/tal/talinterpreter.py", line 891, in do_useMacro
  self.interpret(macro)
  handlers[opcode](self, args)

...

File "/home/moo/sits/parts/zope2/lib/python/zope/tal/talinterpreter.py", line 586, in do_setLocal_tal
  self.engine.setLocal(name, self.engine.evaluateValue(expr))
File "/home/moo/sits/parts/zope2/lib/python/zope/tales/tales.py", line 696, in evaluate
  return expression(self)
File "/home/moo/sits/parts/zope2/lib/python/zope/tales/expressions.py", line 218, in __call__
  return self._eval(econtext)
File "/home/moo/sits/parts/zope2/lib/python/Products/PageTemplates/Expressions.py", line 153, in _eval
  ob = self._subexprs[-1](econtext)
File "/home/moo/sits/parts/zope2/lib/python/zope/tales/expressions.py", line 124, in _eval
  ob = self._traverser(ob, element, econtext)
File "/home/moo/sits/parts/zope2/lib/python/Products/PageTemplates/Expressions.py", line 103, in trustedBoboAwareZopeTraverse
  request=request)
File "/home/moo/sits/parts/zope2/lib/python/zope/traversing/adapters.py", line 164, in traversePathElement
  return traversable.traverse(nm, further_path)
File "/home/moo/sits/parts/zope2/lib/python/zope/traversing/adapters.py", line 52, in traverse
  raise TraversalError(subject, name)

From line Products/PageTemplates/Expressions.py you can see the error comes from TAL templates. TAL templates are trying to execute path based expressions.

If you can view this error through error_log the error_log traceback will contain information what expression causes the exception. However if this only happens with unit tests you can have something like:

def __call__(self, econtext):
    if self._name == 'exists':
        return self._exists(econtext)
    print "Evaluating expression:" + self._s
    return self._eval(econtext)

manually injected to zope.tales.expression module.