[Zope] Tree tag and namespaces

[Anthony Baxter]

Try just _.None,_

Anthony

>>> Lars Heber wrote
> On 03/02/2001, I got an answer to my question regarding dtml-tree - see:
> 
> http://zope.nipltd.com/public/lists/zope-archive.nsf/47ba74c812dbc5dd8025687f
0024bb5f/4d8526e42ef682e080256a0300730c60?OpenDocument
> 
> Now, that I've upgraded from 2.3.0 to 2.4.1,
> <dtml-tree ... branches_expr="yourDTMLmethod(_vars.None,_vars)">
>       ....
> </dtml-tree>
> doesn't work anymore!
> The problem is the yourDTMLmethod(_vars.None,_vars), I get the
> following:
> Error Type:  SyntaxError
> Error Value: Line 2: "_vars" is an invalid variable name because it
> starts with "_"
> traceback:
> [...]
> File
> /usr/local/Zope-2.4.1-linux2-x86/lib/python/DocumentTemplate/DT_String.py,
> line 546, in __call__
>     (Object: baum)
> -> this is the name of the method which creates the tree
>   File
> /usr/local/Zope-2.4.1-linux2-x86/lib/python/TreeDisplay/TreeTag.py, line
> 159, in render
>     (Object: a tree tag)
>   File
> /usr/local/Zope-2.4.1-linux2-x86/lib/python/TreeDisplay/TreeTag.py, line
> 269, in tpRender
>     (Object: LockableItem)
>   File
> /usr/local/Zope-2.4.1-linux2-x86/lib/python/TreeDisplay/TreeTag.py, line
> 325, in tpRenderTABLE
>     (Object: LockableItem)
>   File
> /usr/local/Zope-2.4.1-linux2-x86/lib/python/DocumentTemplate/DT_Util.py,
> line 209, in eval
>     (Object: search(_vars.None,_vars))
> -> search is the method which returns the nodes to display
>   File
> /usr/local/Zope-2.4.1-linux2-x86/lib/python/RestrictedPython/Eval.py,
> line 143, in prepRestrictedCode
>     (Object: search(_vars.None,_vars))
> 
> <dtml-tree single="1" skip_unauthorized="1"
> branches_expr="search(_vars.None,_vars)">
> ...
> </dtml-tree>
> 
> Hey, what's going on here?
> 
> I've absolutely NO idea where to start!
> Would be nice if Dieter could give me a response; but of course any
> suggestions are welcome!
> 
> BTW: Second strange error (independent from the above one!):
> [...]
>  File
> /usr/local/Zope-2.4.1-linux2-x86/lib/python/DocumentTemplate/DT_String.py,
> line 546, in __call__
>     (Object: 984400993)
>   File
> /usr/local/Zope-2.4.1-linux2-x86/lib/python/DocumentTemplate/DT_Util.py,
> line 231, in eval
>     (Object: pub.restrictedTraverse(_.string.join([bilderpfad,
> firmenlogoKlein], '')))
>     (Info: bilderpfad)
>   File <string>, line 2, in f
>     (Object: guarded_getattr)
>   File /usr/local/Zope-2.4.1-linux2-x86/lib/python/OFS/Traversable.py,
> line 233, in restrictedTraverse
>     (Object: LockableItem)
>   File /usr/local/Zope-2.4.1-linux2-x86/lib/python/OFS/Traversable.py,
> line 193, in unrestrictedTraverse
>     (Object: ApplicationDefaultPermissions)
> NameError: global name 'has' is not defined
> 
> I never declared such a var or used it.
> 
> Both (the first AND the second) examples worked perfectly under 2.3.0.
> Has something changed in 2.4.1 I have to think of?
> 
> TIA Lars
> 
> 
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-- 
Anthony Baxter     <anthony@interlink.com.au>   
It's never too late to have a happy childhood.