[ITK-users] Using ITK python wrapper

Michka Popoff michkapopoff at gmail.com
Tue Apr 1 10:41:37 EDT 2014 

You should also not use InsightToolkit.py, but itk.py (by using : import itk)
Thats the preferred way to use itk with python wrapping. InsightToolkit.py will be removed in ITK 4.6 and was not realy working/tested in 4.5.

So the main entry point to itk is the itk.py module. As Matt said, moving the .pth file to your sites-packages should make it work.

Michka

Le 1 avr. 2014 à 16:23, Matt McCormick a écrit :

> Hi Nicole,
> 
> The file
> 
>  C:/Toolkits/ITK-4.5.1/build_x64_VS2008_withLTK/Wrapping/Generators/Python/WrapITK.pth
> 
> should be copied to
> 
>  C:/Python27/Lib/site-packages
> 
> In order to import the module, Python must be able to see the *.py
> files and the _* C extensions, which are the swig C extension
> interface that get imported by the *.py files, and the _* C extension
> modules must be able to load the ITK DLL's that they use.
> 
> HTH,
> Matt
> 
> PS. To subscribe to the lists, please go here:
> 
>  http://itk.org/cgi-bin/mailman/listinfo/community
> 
> and make sure to check your inbox and spambox for the confirmation email.
> 
> On Tue, Apr 1, 2014 at 4:44 AM, Chiara Caborni <chiara.caborni at gmail.com> wrote:
>> Thank you for everyone getting back to me. I have had a play with the paths,
>> and carried out all your suggestions. But I still have no luck. The problem
>> I have firstly with the paths is that my itk.py file is
>> sys.path.append('C:/Toolkits/ITK-4.5.1/build_x64_VS2008_withLTK/Wrapping/Generators/Python/Release'),
>> along with itkBase.py, itkConfig.py, itkLazy.py, itkTemplate.py, itkTypes.py
>> and the WrapITK.path.
>> 
>> There is no itk.py in
>> sys.path.append('C:/Toolkits/ITK-4.5.1/build_x64_VS2008_withLTK/Wrapping/Generators/Python')
>> that was suggested, but what I do have is InsightToolkit.py here (amongst
>> many other python files). When I import InsightToolkit.py (after adding the
>> lib path), I get this error:
>> 
>>>>> import InsightToolkit
>> 
>> Traceback (most recent call last):
>> 
>> File "<console>", line 1, in <module>
>> 
>> File
>> "C:\Toolkits\ITK-4.5.1\build_x64_VS2008_withLTK\Wrapping\Generators\Python\Configuration\..\InsightToolkit.py",
>> line 5, in <module>
>> 
>> from ITKPyBase import *
>> 
>> File
>> "C:\Toolkits\ITK-4.5.1\build_x64_VS2008_withLTK\Wrapping\Generators\Python\Configuration\..\ITKPyBase.py",
>> line 2, in <module>
>> 
>> itkBase.LoadModule('ITKPyBase')
>> 
>> File
>> "C:/Toolkits/ITK-4.5.1/build_x64_VS2008_withLTK/Wrapping/Generators/Python/Release\itkBase.py",
>> line 103, in LoadModule
>> 
>> if not swigModuleName in sys.modules: module = loader.load(swigModuleName)
>> 
>> File
>> "C:/Toolkits/ITK-4.5.1/build_x64_VS2008_withLTK/Wrapping/Generators/Python/Release\itkBase.py",
>> line 214, in load
>> 
>> return imp.load_module(name, fp, pathname, description)
>> 
>> File
>> "C:/Toolkits/ITK-4.5.1/build_x64_VS2008_withLTK/lib\ITKPyBasePython.py",
>> line 30, in <module>
>> 
>> _ITKPyBasePython = swig_import_helper()
>> 
>> File
>> "C:/Toolkits/ITK-4.5.1/build_x64_VS2008_withLTK/lib\ITKPyBasePython.py",
>> line 22, in swig_import_helper
>> 
>> import _ITKPyBasePython
>> 
>> ImportError: No module named _ITKPyBasePython
>> 
>> 
>> I've checked and there is an ITKPyBasePython.py in the lib folder.
>> 
>> 
>> For trying the ImageType = itk.Image[itk.US, 3], the error I'm getting
>> 
>>>>> imageType = itk.Image[itk.US, 3]
>> 
>> Traceback (most recent call last):
>> 
>> File "<console>", line 1, in <module>
>> 
>> File
>> "C:/Toolkits/ITK-4.5.1/build_x64_VS2008_withLTK/Wrapping/Generators/Python/Release\itkLazy.py",
>> line 37, in __getattribute__
>> 
>> itkBase.LoadModule(module, namespace)
>> 
>> File
>> "C:/Toolkits/ITK-4.5.1/build_x64_VS2008_withLTK/Wrapping/Generators/Python/Release\itkBase.py",
>> line 42, in LoadModule
>> 
>> swig.__dict__.update(this_module.swig.__dict__)
>> 
>> AttributeError: 'module' object has no attribute 'swig'
>> 
>> 
>> There seems to be some issue with swig, but I don't understand how it works
>> and hence why mine isn't working. Any ideas anyone?
>> 
>> 
>> Cheers,
>> 
>> Nicole
>> 
>> 
>> 
>> 2014-03-31 14:36 GMT+01:00 Matt McCormick <matt.mccormick at kitware.com>:
>> 
>>> Hi Chiara,
>>> 
>>> If the file 'WrapITK.pth' from Wrapping/Generators/Python/ iin the
>>> build tree is copied to the site-packages directory of your Python
>>> distribution, it should help.
>>> 
>>> Matt
>>> 
>>> On Mon, Mar 31, 2014 at 8:07 AM, Paolo Zaffino <p.zaffino at yahoo.it> wrote:
>>>> Hi,
>>>> I confirm your wrong path.
>>>> Anyway I usually add also:
>>>> 
>>>> sys.path.append("YOUR_BUILD_PATH/lib")
>>>> Maybe this can help.
>>>> 
>>>> Paolo
>>>> Il Lunedì 31 Marzo 2014 11:03, Michka Popoff <michkapopoff at gmail.com> ha
>>>> scritto:
>>>> Hi
>>>> 
>>>> seems your path is not correctly set. The path should be :
>>>> 
>>>> sys.path.append('C:/Toolkits/ITK-4.5.1/build_x64_VS2008_withLTK/Wrapping/Generators/Python')
>>>> There is no Release folder in the Python folder.
>>>> Maybe you'll have to play a little bit with the path, you are under
>>>> windows
>>>> so perhaps the slashes need to be replaced by backslashes ?
>>>> 
>>>> Michka
>>>> 
>>>> Le 31 mars 2014 à 10:38, Chiara Caborni a écrit :
>>>> 
>>>> Hello,
>>>> 
>>>>  I'm writing on behalf of Nicole in cc, which has subscribed to
>>>> insight-users at itk.org, but still cannot send mails directly to the
>>>> community, can you do something about that? thank you
>>>> 
>>>> 
>>>> I'm trying to use the python wrapped ITK, but I'm running into trouble
>>>> setting up my image type.
>>>> 
>>>> 
>>>> 
>>>> My code so far:
>>>> 
>>>> import sys
>>>> 
>>>> 
>>>> sys.path.append('C:/Toolkits/ITK-4.5.1/build_x64_VS2008_withLTK/Wrapping/Generators/Python/Release')
>>>> 
>>>> import itk
>>>> 
>>>> pixelType = itk.UC
>>>> 
>>>> imageType = itk.Image[pixelType,3]
>>>> 
>>>> 
>>>> 
>>>> Traceback (most recent call last):
>>>> 
>>>> File "<console>", line 1, in <module>
>>>> 
>>>> File
>>>> 
>>>> "C:/Toolkits/ITK-4.5.1/build_x64_VS2008_withLTK/Wrapping/Generators/Python/Release\itkLazy.py",
>>>> line 37, in __getattribute__
>>>> 
>>>> itkBase.LoadModule(module, namespace)
>>>> 
>>>> File
>>>> 
>>>> "C:/Toolkits/ITK-4.5.1/build_x64_VS2008_withLTK/Wrapping/Generators/Python/Release\itkBase.py",
>>>> line 95, in LoadModule
>>>> 
>>>> LoadModule(dep, namespace)
>>>> 
>>>> File
>>>> 
>>>> "C:/Toolkits/ITK-4.5.1/build_x64_VS2008_withLTK/Wrapping/Generators/Python/Release\itkBase.py",
>>>> line 95, in LoadModule
>>>> 
>>>> LoadModule(dep, namespace)
>>>> 
>>>> File
>>>> 
>>>> "C:/Toolkits/ITK-4.5.1/build_x64_VS2008_withLTK/Wrapping/Generators/Python/Release\itkBase.py",
>>>> line 95, in LoadModule
>>>> 
>>>> LoadModule(dep, namespace)
>>>> 
>>>> File
>>>> 
>>>> "C:/Toolkits/ITK-4.5.1/build_x64_VS2008_withLTK/Wrapping/Generators/Python/Release\itkBase.py",
>>>> line 95, in LoadModule
>>>> 
>>>> LoadModule(dep, namespace)
>>>> 
>>>> File
>>>> 
>>>> "C:/Toolkits/ITK-4.5.1/build_x64_VS2008_withLTK/Wrapping/Generators/Python/Release\itkBase.py",
>>>> line 95, in LoadModule
>>>> 
>>>> LoadModule(dep, namespace)
>>>> 
>>>> File
>>>> 
>>>> "C:/Toolkits/ITK-4.5.1/build_x64_VS2008_withLTK/Wrapping/Generators/Python/Release\itkBase.py",
>>>> line 103, in LoadModule
>>>> 
>>>> if not swigModuleName in sys.modules: module =
>>>> loader.load(swigModuleName)
>>>> 
>>>> File
>>>> 
>>>> "C:/Toolkits/ITK-4.5.1/build_x64_VS2008_withLTK/Wrapping/Generators/Python/Release\itkBase.py",
>>>> line 213, in load
>>>> 
>>>> fp, pathname, description = imp.find_module(name)
>>>> 
>>>> 
>>>> 
>>>> Can anyone help me understand why this is happening and what I can do
>>>> about
>>>> it?
>>>> 
>>>> 
>>>> 
>>>> Cheers,
>>>> 
>>>> Nicole
>>>> --
>>>> Chiara
>>>> 
>>>> _____________________________________
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>>>> 
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>>>> 
>>>> 
>>>> _____________________________________
>>>> Powered by www.kitware.com
>>>> 
>>>> Visit other Kitware open-source projects at
>>>> http://www.kitware.com/opensource/opensource.html
>>>> 
>>>> Kitware offers ITK Training Courses, for more information visit:
>>>> http://www.kitware.com/products/protraining.php
>>>> 
>>>> Please keep messages on-topic and check the ITK FAQ at:
>>>> http://www.itk.org/Wiki/ITK_FAQ
>>>> 
>>>> Follow this link to subscribe/unsubscribe:
>>>> http://www.itk.org/mailman/listinfo/insight-users
>>>> 
>>>> 
>>>> 
>>>> _____________________________________
>>>> Powered by www.kitware.com
>>>> 
>>>> Visit other Kitware open-source projects at
>>>> http://www.kitware.com/opensource/opensource.html
>>>> 
>>>> Kitware offers ITK Training Courses, for more information visit:
>>>> http://www.kitware.com/products/protraining.php
>>>> 
>>>> Please keep messages on-topic and check the ITK FAQ at:
>>>> http://www.itk.org/Wiki/ITK_FAQ
>>>> 
>>>> Follow this link to subscribe/unsubscribe:
>>>> http://www.itk.org/mailman/listinfo/insight-users
>>>> 
>> 
>> 
>> 
>> 
>> --
>> Chiara

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