[vtkusers] Building VTK 7.1.1 with Python wrapping fail
David Gobbi
david.gobbi at gmail.com
Thu May 4 16:30:20 EDT 2017
Hi Tomothee,
I think I made a mistake in the first fix that I suggested. The correct
name of the init methods is PyInit_vtkXXPython(), so the code in
vtkPythonWrapping.cmake should be this:
set (EXTERN_DEFINES "${EXTERN_DEFINES}\n extern PyObject
*PyInit_${module}Python();")
Hopefully that will work.
- David
On Thu, May 4, 2017 at 11:49 AM, Timothee Evain <tevain at telecom-paristech.fr
> wrote:
> Hello David,
>
> yes, the missing symbol errors are still there unfortunately, even with
> the CMakeLists fix.
>
> Tim
>
> ----- Mail original -----
> De: "David Gobbi" <david.gobbi at gmail.com>
> À: "Timothee Evain" <tevain at telecom-paristech.fr>
> Cc: "VTK Users" <vtkusers at vtk.org>, "Utkarsh Ayachit" <
> utkarsh.ayachit at kitware.com>
> Envoyé: Jeudi 4 Mai 2017 19:43:55
> Objet: Re: [vtkusers] Building VTK 7.1.1 with Python wrapping fail
>
> Hi Timothee,
>
> I checked the logs, it looks like that change was done around one year ago,
> but wasn't in the 7.1.1 release.
>
> It looks like it links to the correct libraries, are you still seeing the
> missing symbol errors?
>
> - David
>
>
> On Wed, May 3, 2017 at 1:20 PM, Timothee Evain <
> tevain at telecom-paristech.fr>
> wrote:
>
> > Hi!
> >
> > That explains why the full are in both profile, thanks for the
> > clarification!
> >
> > One strange thing about the CMakeLists.txt: the one I got downloading the
> > 7.1.1 archive on vtk.org does not contain this part before
> > "target_link_libraries(vtkpython ${VTKPYTHON_LINK_LIBS})" (around line
> > 246) :
> >
> > # Add the libPython.dylib file and link explicitly against it.
> > # This is needed because this is a new python executable, which needs
> it's
> > libraries.
> > find_package(PythonLibs REQUIRED)
> > list(APPEND VTKPYTHON_LINK_LIBS ${vtkPython_LIBRARIES})
> >
> > that is in contrast to the file in github. Nonetheless, after fixing it,
> > the reporting is :
> >
> > vtkPython_LIBRARIES C:/Program Files/Python_3.6.1/libs/python36.lib
> >
> > VTKPYTHON_LINK_LIBS vtkWrappingPythonCore;
> > vtkCommonCorePython;
> > vtkCommonMathPython;
> > vtkCommonMiscPython;
> > vtkCommonSystemPython;
> > vtkCommonTransformsPython;
> > vtkCommonDataModelPython;
> > vtkCommonColorPython;
> > vtkCommonExecutionModelPython;
> > vtkCommonComputationalGeometryPython;
> > vtkFiltersCorePython;
> > vtkFiltersGeneralPython;
> > vtkImagingCorePython;
> > vtkImagingFourierPython;
> > vtkFiltersStatisticsPython;
> > vtkFiltersExtractionPython;
> > vtkInfovisCorePython;
> > vtkFiltersGeometryPython;
> > vtkFiltersSourcesPython;
> > vtkRenderingCorePython;
> > vtkRenderingFreeTypePython;
> > vtkRenderingContext2DPython;
> > vtkChartsCorePython;
> > vtkIOImagePython;
> > vtkIOCorePython;
> > vtkIOSQLPython;
> > vtkImagingStatisticsPython;
> > vtkInteractionStylePython;
> > vtkRenderingImagePython;
> > vtkRenderingOpenGL2Python;
> > vtkDICOMPython;
> > vtkIOLegacyPython;
> > vtkIOXMLParserPython;
> > vtkDomainsChemistryPython;
> > vtkDomainsChemistryOpenGL2Python;
> > vtkIOXMLPython;
> > vtkParallelCorePython;
> > vtkFiltersAMRPython;
> > vtkFiltersFlowPathsPython;
> > vtkFiltersGenericPython;
> > vtkImagingSourcesPython;
> > vtkFiltersHybridPython;
> > vtkFiltersHyperTreePython;
> > vtkImagingGeneralPython;
> > vtkFiltersImagingPython;
> > vtkFiltersModelingPython;
> > vtkFiltersParallelPython;
> > vtkFiltersParallelImagingPython;
> > vtkFiltersPointsPython;vtkFiltersProgrammablePython;
> > vtkFiltersPythonPython;vtkFiltersSMPPython;vtkFiltersSelectionPython;
> > vtkFiltersTexturePython;vtkFiltersVerdictPython;vtkImagingHybridPython;
> > vtkInfovisLayoutPython;vtkImagingColorPython;
> vtkRenderingAnnotationPython;
> > vtkRenderingVolumePython;vtkInteractionWidgetsPython;vtkViewsCorePython;
> > vtkGeovisCorePython;vtkIOAMRPython;vtkIOEnSightPython;vtkIOExodusPython;
> > vtkRenderingGL2PSOpenGL2Python;vtkIOExportPython;vtkIOGeometryPython;
> > vtkIOImportPython;vtkIOInfovisPython;vtkIOLSDynaPython;vtkIOMINCPython;
> > vtkIOMoviePython;vtkIONetCDFPython;vtkIOPLYPython;vtkIOParallelPython;
> > vtkIOParallelXMLPython;vtkIOTecplotTablePython;vtkIOVideoPython;
> > vtkImagingMathPython;vtkImagingMorphologicalPython;
> > vtkImagingOpenGL2Python;vtkImagingStencilPython;
> vtkInteractionImagePython;
> > vtkPythonInterpreterPython;vtkRenderingContextOpenGL2Pyth
> > on;vtkRenderingLODPython;vtkRenderingLabelPython;
> > vtkRenderingMatplotlibPython;vtkRenderingVolumeOpenGL2Pytho
> > n;vtkViewsContext2DPython;vtkViewsInfovisPython;C:/Program
> > Files/Python_3.6.1/libs/python36.lib
> >
> >
> > ----- Mail original -----
> > De: "David Gobbi" <david.gobbi at gmail.com>
> > À: "Timothee Evain" <tevain at telecom-paristech.fr>
> > Cc: "VTK Users" <vtkusers at vtk.org>, "Utkarsh Ayachit" <
> > utkarsh.ayachit at kitware.com>
> > Envoyé: Mercredi 3 Mai 2017 02:08:05
> > Objet: Re: [vtkusers] Building VTK 7.1.1 with Python wrapping fail
> >
> > Hi Timothee,
> >
> > The "D" on the the vtk*PythonD does not mean "Debug". Each build
> (whether
> > release or debug) will have a full set of vtk*PythonD libraries and
> > vtk*Python modules. Both are needed for the VTK build.
> >
> > My system doesn't have a python_d debug library (I'm OS X), but it is
> > probably unrelated to the link error, and it is totally unrelated to the
> > PythonD libraries.
> >
> > As for the link error, it probably has to do with these lines in
> > Wrapping/Python/CMakeLists.txt:
> >
> > list(APPEND VTKPYTHON_LINK_LIBS ${vtkPython_LIBRARIES})
> > target_link_libraries(vtkpython ${VTKPYTHON_LINK_LIBS})
> >
> > Can you add the following immediately below these lines, and tell me what
> > is printed?
> >
> > message(STATUS "vtkPython_LIBRARIES ${vtkPython_LIBRARIES}")
> > message(STATUS "VTKPYTHON_LINK_LIBS ${VTKPYTHON_LINK_LIBS}")
> >
> > Regards,
> > - David
> >
> >
> >
> > On Tue, May 2, 2017 at 1:38 PM, Timothee Evain <
> > tevain at telecom-paristech.fr>
> > wrote:
> >
> > > Hello David,
> > >
> > > Some follow-up:
> > >
> > > After vtkPythonWrapping.cmake modification, the first set of error is
> > gone.
> > > But then, linking fail for this project with:
> > > [...]
> > > 1>vtkPythonAppInit.obj : error LNK2019: unresolved external symbol
> > > initvtkCommonCorePython referenced in function "void __cdecl
> > > vtkpythonmodulesPythonLoadAllPythonModules(void)" (?
> > > vtkpythonmodulesPythonLoadAllPythonModules@@YAXXZ)
> > > 1>vtkPythonAppInit.obj : error LNK2019: unresolved external symbol
> > > initvtkCommonMathPython referenced in function "void __cdecl
> > > vtkpythonmodulesPythonLoadAllPythonModules(void)" (?
> > > vtkpythonmodulesPythonLoadAllPythonModules@@YAXXZ)
> > > 1>vtkPythonAppInit.obj : error LNK2019: unresolved external symbol
> > > initvtkCommonMiscPython referenced in function "void __cdecl
> > > vtkpythonmodulesPythonLoadAllPythonModules(void)" (?
> > > vtkpythonmodulesPythonLoadAllPythonModules@@YAXXZ)
> > > [...]
> > >
> > > Looking at the the vtkpython linking dependencies, I'm a bit confused.
> > > First of all, the python lib ([...]Python_3.6.1\libs\python36.lib) is
> > set
> > > for release profile but also on debug (rather than
> > [...]Python_3.6.1\libs\python36_d.lib
> > > ?) by cmake.
> > > Then, for both profiles are linked all the vtk*Python and all the
> > > vtk*PythonD libs, which seems unusual, as I was expecting vtk*Python
> libs
> > > in release and vtk*PythonD libs in debug.
> > > I'm not sure if this is an expected configuration, so I have not found
> > the
> > > source of error.
> > >
> > > Don't hesitate to tell me if you need additionnal information!
> > >
> > > Tim
> > >
> > > ----- Mail original -----
> > > De: "David Gobbi" <david.gobbi at gmail.com>
> > > À: "Timothee Evain" <tevain at telecom-paristech.fr>
> > > Cc: "VTK Users" <vtkusers at vtk.org>, "Utkarsh Ayachit" <
> > > utkarsh.ayachit at kitware.com>
> > > Envoyé: Lundi 1 Mai 2017 21:52:21
> > > Objet: Re: [vtkusers] Building VTK 7.1.1 with Python wrapping fail
> > >
> > > Hi Tim,
> > >
> > > As a temporary work-around, you can try modifying the VTK code
> yourself.
> > > In the VTK/CMake directory, there is a file called
> > > vtkPythonWrapping.cmake. The following line (around line 195) is where
> > the
> > > problem is:
> > >
> > > set (EXTERN_DEFINES "${EXTERN_DEFINES}\n extern void
> > > init${module}Python();")
> > >
> > > Try changing the "void" to "PyObject *":
> > >
> > > set (EXTERN_DEFINES "${EXTERN_DEFINES}\n extern PyObject
> > > *init${module}Python();")
> > >
> > > Let me know if that fixes the compile error.
> > >
> > > - David
> > >
> > > On Mon, May 1, 2017 at 1:24 PM, David Gobbi <david.gobbi at gmail.com>
> > wrote:
> > >
> > > > Hi Tim,
> > > >
> > > > I haven't seen this error message before, but my guess is that
> building
> > > > the Python wrappers with static linkage does not work with Python 3.
> > I'm
> > > > not sure how difficult this is to fix. It might be as simple as
> > adding a
> > > > couple #ifdefs to the code (to the VTK code, I mean.).
> > > >
> > > > - David
> > > >
> > > >
> > > > On Mon, May 1, 2017 at 12:26 PM, Timothee Evain <
> > > > tevain at telecom-paristech.fr> wrote:
> > > >
> > > >> Hello everyone!
> > > >>
> > > >> I'm trying to build VTK 7.1.1 with the Python wrapping with Visual
> > > studio
> > > >> 2017 on Win10. Everything goes fine until the end of the build,
> where
> > a
> > > >> bunch of error appears in the vtkpython project like :
> > > >>
> > > >> vtkPythonAppInit.cxx
> > > >> ...\VTK_7.1.1\Wrapping\Python\vtkpythonmodules.h(126): error C2664:
> > > 'int
> > > >> PyImport_AppendInittab(const char *,PyObject *(__cdecl *)(void))':
> > > cannot
> > > >> convert argument 2 from 'void (__cdecl *)(void)' to 'PyObject
> > *(__cdecl
> > > >> *)(void)'
> > > >> ...\VTK_7.1.1\Wrapping\Python\vtkpythonmodules.h(126): note: None
> of
> > > the
> > > >> functions with this name in scope match the target type
> > > >> ...\VTK_7.1.1\Wrapping\Python\vtkpythonmodules.h(129): error C2664:
> > > 'int
> > > >> PyImport_AppendInittab(const char *,PyObject *(__cdecl *)(void))':
> > > cannot
> > > >> convert argument 2 from 'void (__cdecl *)(void)' to 'PyObject
> > *(__cdecl
> > > >> *)(void)'
> > > >> ...\VTK_7.1.1\Wrapping\Python\vtkpythonmodules.h(129): note: None
> of
> > > the
> > > >> functions with this name in scope match the target type
> > > >>
> > > >> and so on. The only similar error in the mailing list is
> > > >> http://vtk.1045678.n5.nabble.com/VtK-7-python3-4-build-error
> > > >> -td5735728.html ; but that doesn't help me since my python path are
> > > >> correctly set.
> > > >>
> > > >> The building config is :
> > > >> Windows 10 x64
> > > >> Visual Studio 2017
> > > >> Python 3.6.1 (installed from python.org exe)
> > > >> VTK 7.1.1 with :
> > > >> -PYTHON_DEBUG_LIBRARY C:/Program Files/Python_3.6.1/libs/
> > python36_d.lib
> > > >> -PYTHON_EXECUTABLE C:/Program Files/Python_3.6.1/python.exe
> > > >> -PYTHON_INCLUDE_DIR C:/Program Files/Python_3.6.1/include
> > > >> -PYTHON_LIBRARY C:/Program Files/Python_3.6.1/libs/python36.lib
> > > >> (-Static libraries)
> > > >>
> > > >> Anyone have already encountered such problems and solved it ?
> > > >>
> > > >> Thanks in advance.
> > > >>
> > > >> Tim
> > > >>
> > > >
> > >
> >
>
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