[vtkusers] VTK Python Wrapping OSX 10.9

[David Gobbi]

The easiest way is to add an alias to your .bash_profile file,
which is in your home directory:

alias python=/path/to/python

  David


On Tue, Apr 29, 2014 at 4:09 PM, Laurent Chauvin
<lchauvin at bwh.harvard.edu> wrote:
> Thank you David and Michka.
>
> I just figure it out.
> Indeed you are right Michka, when I call 'python' from the terminal, it
> called the 2.7.5 from the system instead of the one VTK has been built with.
>
> I went to python 2.7.3 directory and used ./python (instead of just 'python'
> command) and I got the 'No module named vtk', but then I added the path in
> PYTHONPATH and it worked.
>
> Thank you very much for your help.
>
> Also, is it possible to replace the default 'python' command with the 2.7.3
> version, so I don't have to go in the directory all the time ?
>
> Thank you.
> -Laurent
>
>
> On Tue, Apr 29, 2014 at 6:00 PM, Michka Popoff <michkapopoff at gmail.com>
> wrote:
>>
>> Okay, I think the problem is the following.
>> If you type python in the terminal, OS X's python 2.7.5 is launched.
>> VTK for slicer was compiled against the shipped python 2.7.3 I suppose.
>>
>> So you try to run from a 2.7.5 python a VTK library which was build
>> against 2.7.3. That won't work (that's the error you get).
>> You can not mix the two.
>>
>>
>> Le 29 avr. 2014 à 23:53, Laurent Chauvin a écrit :
>>
>> Hi Michka,
>>
>> Thank you for your answer.
>>
>> I would prefer not to use a binary version of VTK, more a compiled
>> version.
>>
>> I, indeed, have multiple versions of python (2.7.5 installed with xcode,
>> and 2.7.3 installed with Slicer).
>> However, I don't compile any code, and I don't use cmake. I just do
>> something like 'python script.py'.
>>
>> I tried in both terminal, and it worked in none of them, but it worked in
>> Slicer python interpreter. I guess Slicer set proper environment variable,
>> but I cannot figure it out which one I should set.
>>
>> -Laurent
>>
>>
>>
>>
>>
>> On Tue, Apr 29, 2014 at 5:49 PM, Michka Popoff <michkapopoff at gmail.com>
>> wrote:
>>>
>>> Hi
>>>
>>> if you need an easy install way on OS X 10.9, you may try installing vtk
>>> through homebrew.
>>> There are formulas for VTK 5 and VTK 6 which contain the right options to
>>> install on OS X.
>>> (Installation goes with "brew install vtk --with python")
>>>
>>> You can also try my binaries, which are installable through homebrew
>>> (https://github.com/iMichka/homebrew-MacVTKITKPythonBottles)
>>> In this case you don't even have to compile VTK :)
>>>
>>> The error you get is often due to a python library mismatch. Cmake is
>>> picking up the wrong libraries (the python lib does not correspond to the
>>> python executable).
>>> Do you have mutliple pythons installed ?
>>> You can also check the python paths in cmake (especially the path of the
>>> PYTHON_LIBRARY).
>>>
>>> Michka
>>>
>>> Le 29 avr. 2014 à 23:36, Laurent Chauvin a écrit :
>>>
>>> Hello VTK Users,
>>>
>>> I'm trying to run an example of VTK (the vtk Cube.py example) in python
>>> on Mac OSX 10.9.
>>> I have VTK 5.10.1 and python 2.7.5.
>>>
>>> I read this page:
>>> http://www.vtk.org/Wiki/VTK/Tutorials/PythonEnvironmentSetup
>>>
>>> which solved the 'no module named vtk' error, but now, I got another
>>> error:
>>>
>>> Fatal Python error: PyThreadState_Get: no current thread
>>> Abort trap: 6
>>>
>>> I heard the VTK 5.10 is not compatible with OSX 10.9, but it was a while
>>> ago (end of 2013).
>>>
>>> The example is working when I use the python interpreter in Slicer, so my
>>> guess is this is an issue with the environment path, but I cannot figure it
>>> out.
>>>
>>> Does anyone already ran vtk python examples in OSX 10.9 ?
>>>
>>> Thank you very much.
>>> -Laurent
>>>
>>> --
>>> Laurent Chauvin, MS
>>> Surgical Navigation and Robotics Laboratory, Radiology Department
>>> Brigham And Women's Hospital, Harvard Medical School
>>> http://wiki.ncigt.org/index.php/User:Lchauvin
>>>
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>>
>>
>>
>>
>> --
>> Laurent Chauvin, MS
>> Surgical Navigation and Robotics Laboratory, Radiology Department
>> Brigham And Women's Hospital, Harvard Medical School
>> http://wiki.ncigt.org/index.php/User:Lchauvin
>>
>>
>
>
>
> --
> Laurent Chauvin, MS
> Surgical Navigation and Robotics Laboratory, Radiology Department
> Brigham And Women's Hospital, Harvard Medical School
> http://wiki.ncigt.org/index.php/User:Lchauvin