[vtkusers] Trying to use VTK library in Python Interpreter

[Heidler, Kirstin (GE Oil & Gas)]

Hello Hesam,

 

usually if you import vtk this imports BOTH vtkCommonPython and
vtkFilteringPython.

I don't know why you want to include them separately?

The problem with vtkFilteringPython when you try to include it on it's
own sounds to me like there is no __init_ for it?

That would mean it is not supposed to be imported that way. (If you want
to include it separately you could try: from vtkFilteringPython import
*)

If you are in doubt as to what happens when you do 'import vtk' take a
look at the __init__.py. 

Anyhow... whatever you are trying to do: I think both David's and my
solution would solve your problem.

Could you just give it a try and if anything is not working for you,
describe to us what you want to do?

 

Cheers,

Kirstin

 

 

 

Von: Hesam [mailto:hesam.ilati2 at gmail.com] 
Gesendet: Dienstag, 28. August 2012 20:21
An: David E DeMarle
Cc: Heidler, Kirstin (GE Oil & Gas); vtkusers at vtk.org
Betreff: Re: [vtkusers] Trying to use VTK library in Python Interpreter

 

Thanks for your instructions. Actually I need to have VTK itself in
Python.

Let me explain a little more:

Consier I have 2 external vtk libraries in the same folder and I want to
import them into the Python. (i.e. "vtkCommonPython" and
"vtkFilteringPython") and both of them have .pyd and .dll files.
(vtkCommonPython.pyd and vtkCommonPythonD.dll and same for other one)

Despite they are in same folder when I write down

 
import vtkCommonPython



it is fine, however when I want to import the other one

 
import vtkFilteringPython


ImportError: DLL load failed: The specified procedure could not be
found.



I tried also to find from where first library is loaded using

 
vtkCommonPython.__file__



And it was the same folder's path for the other one.

How I can trace the problem and find problem's source.

Thanks

Hesam

On Tue, Aug 28, 2012 at 9:56 AM, David E DeMarle
<dave.demarle at kitware.com> wrote:

Another solution is to make sure you have all of the required vtk
libraries and python modules in your PATH and PYTHONPATH respectively.
(Or ld_library_path if not windows.)

pythonpath should contain both vtkbld/bin and
vtkbld/vtkPythonWrapping, and path should have vtkbld/bin .

See http://paraview.org/Wiki/ParaView/Python_Scripting getting started
for more details.

David E DeMarle
Kitware, Inc.
R&D Engineer
21 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-881-4909



On Tue, Aug 28, 2012 at 3:39 AM, Heidler, Kirstin (GE Oil & Gas)
<Kirstin.Heidler at ge.com> wrote:
> Hello Hesam,
>
>
>
> I had some troubles installing VTK for python. Somehow the libraries
were
> not properly linked.
>
> I did not solve that error, but I found a different solution which
works
> very well.
>
>
>
> http://www.lfd.uci.edu/~gohlke/pythonlibs/
>
>
>
> On this page you can find an executable which installs VTK for python.
(just
> search for vtk on the page)
>
>
>
> Afterwards, when you try to import vtk, it fails the first time, but
works
> the second time and any afterward. (Not sure why that happens I
suppose it
> has something to do with unbuilt binaries)
>
>
>
> Cheers,
>
> Kirstin
>
>
>
> Von: vtkusers-bounces at vtk.org [mailto:vtkusers-bounces at vtk.org] Im
Auftrag
> von Hesam
> Gesendet: Montag, 27. August 2012 19:39
> An: vtkusers at vtk.org
> Betreff: [vtkusers] Trying to use VTK library in Python Interpreter
>
>
>
> Hi all,
>
> Goal: Trying to use VTK library in Python Interpreter.
>
> What I did: I have installed VTK using CMake with option
VTK_WRAP_PYTHON and
> Shared_Library enabled and build the VTK in visual studio and it has
> finished with all builds successfully. Then I made the Python_Path.
>
> Problem: When I try to import vtk library into python, I get the
following
> error message:
>
>
>
>>>> import vtk
>
>
> Traceback (most recent call last):
>
>   File "<pyshell#0>", line 1, in <module>
>
>     import vtk
>
>   File "...\VTK\VTKvisual\Wrapping\Python\vtk\__init__.py", line 42,
in
> <module>
>
>     from vtkFilteringPython import *
>
> ImportError: No module named vtkFilteringPython
>
> Any thoughts that why this is happening?
>
> Thanks
>
>

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