[ZPT] Python expressions in Paths?

[Brad Clements]

I've found myself needing to use some simple python expressions in paths, but there 
seems to be no way to express that. I end up falling back to using defines, but then 
sometimes I need an outer tag to get the logic correct.

omit_tag will help, but still be crufty. Is there any way to evaluate a python expression 
within a path.

Like, 

tal:content="item.value+'xyz' | string:No such value"

where if item.value throws a NameError or KeyError, we move on to processing the 
string: thing..

This is a poor example of what I mean, sorry.



Brad Clements,                bkc@murkworks.com   (315)268-1000
http://www.murkworks.com                          (315)268-9812 Fax
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