[Ironpython-users] Scripting Ansys with IronPython - Unable to call values from dictionary

刘振海 1989lzhh at gmail.com
Thu Nov 24 12:05:36 CET 2011

I think you should check the type of verifiedValues like "type(
then use the dir function to check the content of verifiedValues.
maybe try to use new_verifiedValues=dict(verifiedValues)
Hope it will help!

Liu Zhenhai

2011/11/24 Ossi Heinonen <ossi.heinonen at tut.fi>

> Hi all!
> I have a problem with scripting the FEA software Ansys Workbench with
> IronPython. I need to come up with a script that gets the variable values
> in an optimum point that I have found using the optimization tools.
> I found some help for this with "VerifyCandidate" in the scripting guide
> in the Ansys manual and did this in the Ansys Workbench command window:
>  IronPython 2.6.10920.0 on .NET 2.0.50727.3625
>  system1 = GetSystem(Name="GDO")
>  optimization1 = system1.GetContainer(**ComponentName="Optimization")
>  optimizationModel1 = optimization1.GetModel()
>  verifiedValues = optimizationModel1.**VerifyCandidate(Index=0)
>  print verifiedValues
>  {'/Optimization/**OutputParameter:P3': '-0.035979796200990677 [mm]',
>  '/Optimization/InputParameter:**P1': '5.5 [mm]',
>  '/Optimization/**OutputParameter:P2': '0.07417053282883164 [kg]'}
> Now I have a dictionary with my one design variable P1 and two responses
> P2 and P3 with their values at the optimum. Looking good so far. So now I
> only need to get my hands on the values and I'm home free.
> I think this should give me the value of the design variable P1:
>  verifiedValues['/Optimization/**InputParameter:P1']
>  KeyNotFoundException: /Optimization/InputParameter:**P1
> But no, I get an error saying that there is no such key. But when I list
> the keys, it's right there:
>  dict.keys(verifiedValues)
>  ['/Optimization/**OutputParameter:P3',
>  '/Optimization/**OutputParameter:P2', '/Optimization/InputParameter:**
> P1']
> So this is my problem. I've tried calling it without the quotes or with
> double quotes and any other variation that I've come up with. If I make a
> new dictionary manually with the exact same keys and values copied from the
> screen it works just fine. But I can't get anything out of the original
> dictionary.
> Any ideas on how to get it working or what could be done to debug this?
> The only idea I've had is that for some reason the keys are printed
> incorrectly and some characters are actually missing from their names, but
> I might be totally off with this.
> Needless to say that I'm a total newbie with Python. Probably the right
> people to ask are other Ansys users, but I've had no luck finding one that
> could help me. Maybe my luck will chance with you Python gurus :)
> All help is greatly appreciated!
> Best regards
> Ossi Heinonen
> Researcher
> Tampere University of Technology
> Finland
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