[ITK-users] Python wrapping issue

[Paavolainen, Lassi]

Hi Paolo,

Why you want to import itkImagePython instead of just itk?

import itk
img = itk.Image.F3.New()

should work as previously. Notice that
itk.HistogramMatchingImageFilter()
would not work in any case since you need to define the types as well.

The modular design of ITK 4 should not have effected the interface of ITK Python wrappings in anyway. If I'm wrong then maybe someone can correct me.

So I would first check that you are able to import itk and load some filter. If not, then check that all shared libs are in search path.

Cheers,
Lassi

________________________________
From: Insight-users [insight-users-bounces at itk.org] on behalf of Paolo Zaffino [p.zaffino at yahoo.it]
Sent: Wednesday, October 14, 2015 11:51
To: insight-users at itk.org
Subject: [ITK-users] Python wrapping issue

Dear ITK community,
I compiled ITK 4.8 into an Ubuntu 14.04 machine enabling also the python wrapping.
Compiling the code took really a while and I had to restart the make phase more than one time since it crashed without any apparently reason.
Finally when the make step was over I executed the make install command.

If I open ipython and I type "import itkImagePython" it returns

---------------------------------------------------------------------------
ImportError                               Traceback (most recent call last)
<ipython-input-1-dfd82b0a3e37> in <module>()
----> 1 import itkImagePython

/usr/local/lib/ITK-4.8/Python/itkImagePython.py in <module>()
     30                 fp.close()
     31             return _mod
---> 32     _itkImagePython = swig_import_helper()
     33     del swig_import_helper
     34 else:

/usr/local/lib/ITK-4.8/Python/itkImagePython.py in swig_import_helper()
     22             fp, pathname, description = imp.find_module('_itkImagePython', [dirname(__file__)])
     23         except ImportError:
---> 24             import _itkImagePython
     25             return _itkImagePython
     26         if fp is not None:

ImportError: No module named _itkImagePython

but if I run "import ITKRegionGrowingPython" it works.
In addition, after importing ITKRegionGrowingPython also itkImagePython works!

I think the path is correctly set, since I see /usr/local/lib/ITK-4.8/Python.
I also noted that in the "compiledFolder/lib" I see:

  *   ITKRegionGrowingPython.py and _ITKRegionGrowingPython.so
  *   itkImagePython.py but NOT _itkImagePython.so

Do you have any idea?

Furthermore, is it the syntax itk.something still valid or it has been replaced by separate submodules?
Because if I run
hm=itk.HistogramMatchingImageFilter()
I get
UnboundLocalError: local variable 'module' referenced before assignment

Thank you very much.
Regards.

Paolo
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