[vtkusers] python (2.7) problems compiling with MSVC 2010 64bit

[David Gobbi]

Hi Dominik,

It might be as simple as cmake not properly detecting python, I know that
it was unable to detect python-2.7 until very recently, in fact even my
copy of cmake-2.8.2 is missing the bits that it needs to find python-2.7.

Take a look through your CMakeCache.txt file to make sure that all of the
python-related variables are set.

Also, now that you know for certain that it is a path-related issue, make
sure to clear the PYTHONHOME variable or it will get you into trouble
in the future.

 - David


On Tue, Jun 7, 2011 at 3:36 PM, Dominik Szczerba <dominik at itis.ethz.ch> wrote:
> Hi David,
>
> Thanks, indeed, there was no PYTHONHOME set. But setting it brings me
> only one step further. The next is the error when calling "import
> vtk". See the error at the end. I saw a similar thread when you wrote
> it is about mixing release and debug for python. It is not the case
> here, both python and vtk is self compiled with the same compiler
> settings (Release). I blind tried various combinations of PATH and
> PYTHONPATH to no avail. I will be happy about some more ideas to try.
>
> Regards,
> Dominik
>
> On Tue, Jun 7, 2011 at 11:26 PM, David Gobbi <david.gobbi at gmail.com> wrote:
>> Hi Dominik,
>>
>> The "site" module is the first to be imported, so if it is missing,
>> then the "PYTHONHOME" (or equivalent) is not set or is incorrect and
>> python is unable to find its own modules.
>>
>> If you set PYTHONHOME manually (i.e. as an environment variable) to
>> the directory where python-2.7 resides, then I am guessing that these
>> tests will pass.
>>
>> So... the next question is, why is this happening?  Evidently the
>> vtkpython executable is missing some critical information that allows
>> it to find the python-2.7 directory on its own.  The relevant code in
>> VTK is Wrapping/Python/vtkPythonAppInit.cxx
>>
>> None of the dashboard machines seem to use python-2.7.
>>
>>  - David
>>
>>
>> On Tue, Jun 7, 2011 at 2:44 PM, Dominik Szczerba <dominik at itis.ethz.ch> wrote:
>>> Below some output from testing log. I get exactly the same error
>>> (ImportError: No module named site) by just invoking vtkpython from
>>> command line.
>>>
>>> ----------------------------------------------------------
>>> 59/251 Testing: PythonSmokePython-image
>>> 59/251 Test: PythonSmokePython-image
>>> Command: "E:/build/vtk-5.6.1/bin/Release/vtkpython.exe"
>>> "E:/pack/vtk-5.6.1/Common/Testing/Python/PythonSmoke.py"
>>> Directory: E:/build/vtk-5.6.1/Common/Testing/Python
>>> "PythonSmokePython-image" start time: Jun 07 22:27 W. Europe Daylight Time
>>> Output:
>>> ----------------------------------------------------------
>>> ImportError: No module named site
>>> <end of output>
>>> Test time =   2.22 sec
>>> ----------------------------------------------------------
>>> Test Failed.
>>> "PythonSmokePython-image" end time: Jun 07 22:27 W. Europe Daylight Time
>>> "PythonSmokePython-image" time elapsed: 00:00:02
>>> ----------------------------------------------------------
>>>
>>>
>>>
>>> On Tue, Jun 7, 2011 at 10:37 PM, Dominik Szczerba <dominik at itis.ethz.ch> wrote:
>>>> I have compiled python 2.7 in Release mode on MSVC 2010 64bit. I have
>>>> built vtk-5.6.1 against it (with wrapping enabled). However, I get the
>>>> below errors when testing the build.
>>>> My setup is rather standard, I was therefore wondering if there could
>>>> be something obviously wrong, or 2.7 is simply not yet supported.
>>>>
>>>> Regards,
>>>> Dominik
>>>>
>>>> E:\build\vtk-5.6.1>ctest -R Python
>>>> Test project E:/build/vtk-5.6.1
>>>>    Start  59: PythonSmokePython-image
>>>> 1/6 Test  #59: PythonSmokePython-image ......................***Failed    2.22 s
>>>> ec
>>>>    Start  60: TestWeakrefPython-image
>>>> 2/6 Test  #60: TestWeakrefPython-image ......................***Failed    0.09 s
>>>> ec
>>>>    Start  61: TestNumpySupportPython-image
>>>> 3/6 Test  #61: TestNumpySupportPython-image .................***Failed    0.09 s
>>>> ec
>>>>    Start  62: TestTerminationCrashPython-image
>>>> 4/6 Test  #62: TestTerminationCrashPython-image .............***Failed    0.08 s
>>>> ec
>>>>    Start  63: TestExecuteMethodFinalizeCrashPython-image
>>>> 5/6 Test  #63: TestExecuteMethodFinalizeCrashPython-image ...***Failed    0.09 s
>>>> ec
>>>>    Start 237: kMeansDistanceCalculatorPython
>>>> 6/6 Test #237: kMeansDistanceCalculatorPython ...............***Failed    0.08 s
>>>> ec
>>>>
>>>> 0% tests passed, 6 tests failed out of 6
>>>>
>>>> Total Test time (real) =   3.50 sec
>>>>
>>>> The following tests FAILED:
>>>>         59 - PythonSmokePython-image (Failed)
>>>>         60 - TestWeakrefPython-image (Failed)
>>>>         61 - TestNumpySupportPython-image (Failed)
>>>>         62 - TestTerminationCrashPython-image (Failed)
>>>>         63 - TestExecuteMethodFinalizeCrashPython-image (Failed)
>>>>        237 - kMeansDistanceCalculatorPython (Failed)
>>>> Errors while running CTest
>>>>
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>>
>>
>