[Sidefx-houdini-list] Digital Asset raise Error with Python

Никита Мусатов not.a.whale at gmail.com
Sun Apr 22 05:46:14 EDT 2012


How to make if I want to check in parameter, after his change, exist link on object. If it don`t exist raise error. Thanks You!
20.04.2012, в 16:48, Andrew Lyons написал(а):

> HOM in general returns None for non-existant objects. Something like
> this can convert None into an exception:
> 
>>>> node = hou.node('/obj/geo1')
>>>> node.parm("non_existant")
>>>> parm = node.parm("non_existant")
>>>> if not parm:
> ...     raise hou.Error("Parm missing")
> 
> You could put that into a digital asset event handler or python module.
> 
> Cheers
> 
> 
> 2012/4/20 Никита Мусатов <not.a.whale at gmail.com>:
>> Hello! How in Digital Asset, if I have not a parameter raise error with
>> Python. I think need write some command in Callback Script, but cann`t find
>> raise error example in documentation for Digital Asset. Some body know how
>> make it? Thank you.
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> 
> 
> 
> -- 
> =======================================
> Andrew D Lyons | Digital Artist | http://www.tstex.com
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