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

Ossi Heinonen ossi.heinonen at tut.fi
Thu Nov 24 13:21:51 CET 2011

Hi Liu

Thanks for the reply!

I did as you suggested. Here's what I got with type()

<type 'dict'>

So it is a dictionary, right? Then I tried dir(verifiedValues)

     ['Add', 'Clear', 'Contains', 'ContainsKey', 'CopyTo', 'Count', 
'Equals', 'GetEnumerator', 'GetHashCode', 'GetType',
     'Item', 'Keys', 'MemberwiseClone', 'ReferenceEquals', 'Remove', 
'ToString', 'TryGetValue', 'Values', '__add__',
     '__class__', '__cmp__', '__contains__', '__delattr__', 
'__delitem__', '__doc__', '__eq__', '__format__', '__ge__',
     '__getattribute__', '__getitem__', '__gt__', '__hash__', 
'__init__', '__iter__', '__le__', '__len__', '__lt__', '__ne__',
     '__new__', '__reduce__', '__reduce_ex__', '__repr__', 
'__setattr__', '__setitem__', '__sizeof__', '__str__',
     '__subclasshook__', 'clear', 'copy', 'fromkeys', 'get', 'has_key', 
'items', 'iteritems', 'iterkeys', 'itervalues', 'keys',
     'pop', 'popitem', 'setdefault', 'update', 'values']

This doesn't really say much to me, is it any help to you? Or should I 
use dir() in some other way?

I tried some of those, for example


So I think this tells me - once again - that there is no such key in 

I also triednew_verifiedValues=dict(verifiedValues) but got the same result

     KeyNotFoundException: /Optimization/InputParameter:P1

Would you have any thoughts about what I could try next?

Best regards
Ossi Heinonen

On 24.11.2011 13:05, 刘振海 wrote:
> Hi,
> I think you should check the type of verifiedValues like 
> "type(verifiedValues)"
> then use the dir function to check the content of verifiedValues.
> maybe try to use new_verifiedValues=dict(verifiedValues)
> Hope it will help!
> Regards,
> Liu Zhenhai
> 2011/11/24 Ossi Heinonen <ossi.heinonen at tut.fi 
> <mailto: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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>     Ironpython-users at python.org <mailto:Ironpython-users at python.org>
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