[Zope] DTML Call Fails

Tino Wildenhain tino at wildenhain.de
Tue Oct 24 14:45:43 EDT 2006

hpinson at indepthl.com schrieb:
> Hi Tino.  Yes, that is correct. This application has variables named 
> like:
> 'AR-DA-08'

Not very clever.

> This also fails in a Page Template:
> <span tal:define="standards python: request.SESSION">
>    <tal:block define="temp python: data.set('AR-DA-08',AR-DA-
> 08)"></tal:block>

you still have to quote if you mean the variable with that
weird name. Otherwise its an expression in python.

_['AR-DA-08'] could work in DTML... but lets better forget
that ;) Where does your variable live? In Request maybe?

> </span>
> With the error:
> Compilation failed
> TAL.TALDefs.TALError: Python expression error:
> invalid token (Python expression "data.set('AR-DA-08',AR-DA-08)", 
> line 1) in expression "python: data.set('AR


> Yet this works:
> <span tal:define="standards python: request.SESSION">
>    <tal:block define="temp python: data.set('AR-DA-07',AR-DA-
> 07)"></tal:block>
> </span>
> So you are saying the interpreter is seeing the '-' as a minus? Why 
> would it work in one case and not the other?

See Andrew's note on ocal numbers.

> Could the minus be escaped somehow?

No, but see above.

Could you please escape the horribly code + template
mixing with DTML? ;) See the zope book for python scripts.
(After all in DTML "expressions" its already python code,
so why not write just python code and skip all that
<foo> stuff around it you dont need anyway?

Tino Wildenhain

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