[Grok-dev] Re: Upgrade problem "type object 'IRole' has no attribute '__iro__'" (Partial solution)

[Sebastian Ware]

Adding

   [versions]
   zope.app.session = 3.4.2

to buildout.cfg AND

   install_requires=['setuptools',
                     'grok',
                     'zope.app.session==3.4.2'

to setup.py made it possible to use the application management view  
again and also to login to my application.

I am still getting the IRole.__iro__ attribute error when trying to  
access my other views. I have tried with zope.app.session==3.5.1 but  
to no avail.

Mvh Sebastian

29 maj 2008 kl. 18.25 skrev Martijn Faassen:

> Hi there,
>
> Philipp von Weitershausen wrote:
> [snip]
>>> 2008-05-27T19:07:06 ERROR SiteError http://localhost:8080/applications
>>> Traceback (most recent call last):
>>>  ...
>>> AttributeError: 'CookieClientIdManager' object has no attribute  
>>> 'cookieLifetime'
>> CookieClientIdManager's cookieLifeTime attribute is actually a  
>> class attribute. So as with IRole, it seems the ZODB isn't finding  
>> the right class when unpickling.
>> What happens when you add zope.app.session and  
>> zope.app.securitypolicy as explicit dependencies to your application?
>
> I've seen this one before. It has something to do with the versions  
> of zope.app.session and such that were in use.
>
> Uli analyzed this back then:
>
> http://mail.zope.org/pipermail/grok-dev/2008-February/003925.html
>
> This has something you might try:
>
> http://mail.zope.org/pipermail/grok-dev/2008-February/003939.html
>
> Regards,
>
> Martijn
>
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