[Paraview] GetSources() fails with Custom Filters

[Utkarsh Ayachit]

I was able to reproduce this. The difference was I believe you are
starting the python shell before creating the custom filter, while I
was doing it after :). I'll take a look -- have an idea why.

Utkarsh

On Mon, May 31, 2010 at 9:06 PM,  <m.c.wilkins at massey.ac.nz> wrote:
>
> Hi,
>
> I just built paraview from the latest git repo, same as with 3.8.0.
>
> OK, so I must be doing something wrong with my Custom Filter.  Or did
> you not try the GetSources() before doing a restart with paraview?
>
> Matt Wilkins
>
> On Tue, Jun 01, 2010 at 08:57:14AM +1200, m.c.wilkins at massey.ac.nz wrote:
>>
>> Hi,
>>
>> Perhaps I am doing something wrong, because I am getting different
>> behaviour to you Utkarsh.
>>
>> I have not tried the current git-master, just 3.6.2 and 3.8.0.
>>
>> With 3.8.0 GetSources() only works if I make the custom filter, then
>> restart paraview and apply it.  If I apply the custom filter
>> immediately after making it, GetSources() craps out with the KeyError
>> as below.
>>
>> With 3.6.2 GetSources() always craps out, regardless of whether I
>> restart paraview or not.
>>
>> To make the custom filter I just make two filters, select them both,
>> go to Tools -> Create Custom Filter, give it a name, then hit Next
>> Next Finished.  I don't do anything more than that.  Is there some
>> other step I am missing perhaps?
>>
>> Thanks
>>
>> Matt Wilkins
>>
>> On Mon, May 31, 2010 at 09:17:53AM -0400, Utkarsh Ayachit wrote:
>> > Matt,
>> >
>> > I just tried the same with current git-master (should be same as 3.8
>> > as far as python stuff is concerned). It seems to work just fine:
>> >
>> > >>> from paraview.simple import *
>> > paraview version 3.9.0, Date: 2010-05-21
>> > >>> GetSources()
>> > {('Sphere1', '105'): <paraview.servermanager.Sphere object at 0x4c3ffd0>,
>> >  ('TwoShrinks1', '1111'): <paraview.servermanager.TwoShrinks object at
>> > 0x4c3fb10>}
>> > >>>
>> >
>> > Let me know if it doesn't work with  3.8 for you.
>> >
>> > Utkarsh
>> >
>> >
>> > On Sun, May 30, 2010 at 9:41 PM,  <m.c.wilkins at massey.ac.nz> wrote:
>> > >
>> > > Hi,
>> > >
>> > > Under 3.6.2 on linux in the python shell GetSources() fails if there are
>> > > sources in the pipeline browser that appeared from Custom Filters.  The error
>> > > is:
>> > >
>> > >>>> GetSources()
>> > > Traceback (most recent call last):
>> > >  File "<console>", line 1, in <module>
>> > >  File "/home/kitware/ParaView3/Utilities/BuildScripts/ParaView-3.6/ParaView3Bin/Utilities/VTKPythonWrapping/paraview/simple.py", line 195, in GetSources
>> > >  File "/home/kitware/ParaView3/Utilities/BuildScripts/ParaView-3.6/ParaView3Bin/Utilities/VTKPythonWrapping/paraview/servermanager.py", line 1493, in GetProxiesInGroup
>> > >  File "/home/kitware/ParaView3/Utilities/BuildScripts/ParaView-3.6/ParaView3Bin/Utilities/VTKPythonWrapping/paraview/servermanager.py", line 1704, in next
>> > >  File "/home/kitware/ParaView3/Utilities/BuildScripts/ParaView-3.6/ParaView3Bin/Utilities/VTKPythonWrapping/paraview/servermanager.py", line 2280, in _getPyProxy
>> > >  File "/home/kitware/ParaView3/Utilities/BuildScripts/ParaView-3.6/ParaView3Bin/Utilities/VTKPythonWrapping/paraview/servermanager.py", line 2339, in _findClassForProxy
>> > > KeyError: 'Foo'
>> > >>>>
>> > >
>> > > What I am doing is creating a Custom Filter (Foo) by: selecting two filters I
>> > > have applied, clicking on Create Custom Filter, then taking all the defaults
>> > > (clicking through Next Next Next, then Finished).  Then I apply that custom
>> > > filter, then run a GetSources() in the python shell and the above error
>> > > appears.
>> > >
>> > > I friend tried the above with 3.8.0 on Windows with similar results.
>> > > I don't completely trust he did it right, but he probably did, so the
>> > > problem is probably not limited to 3.6.2 on linux.
>> > >
>> > > Have I done something wrong with my Custom Filter?
>> > >
>> > > Thank you very much for any help you can offer.
>> > >
>> > > Matt Wilkins
>> > >
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