[Python-apps-team] Bug#550635: mayavi2: [regression] interpolated scalar coloring results in black surface

[Francesco Poli]

On Sun, 4 Apr 2010 01:29:52 +0200 Gael Varoquaux wrote:

> On Sat, Mar 27, 2010 at 04:41:00PM +0100, Francesco Poli wrote:
[...]
> > It's possible: I am still using libvtk5.2/5.2.1-11 (currently in Debian
> > testing).
> > Maybe libvtk5.4/5.4.2-5 (currently in unstable) solves the
> > issue...
> 
> > Should I test mayavi2/3.3.1-1 with libvtk5.4/5.4.2-5 ?
> 
> That would be helpful. It would explain why I could not reproduce. If
> that doesn't sort it out, we'll have to seek another explaination :).

I've just upgraded to mayavi2/3.3.1-1 from Debian unstable.

First problem: it pulled in libvtk5.4/5.4.2-5 as a dependency (good!),
but did not pull in python-vtk/5.4.2-5 (not good, I would say).

As a consequence, I still have python-vtk/5.2.1-11 installed and
mayavi2 complains:

********************************************************************************
WARNING: Imported VTK version (5.2) does not match the one used
         to build the TVTK classes (5.4). This may cause problems.
         Please rebuild TVTK.
********************************************************************************

To the Python Applications Packaging Team: maybe mayavi2 should have a
versioned dependency on python-vtk (>= 5.4.2-5) in order to make sure
that python-vtk version is consistent with libvtk5.4

Or something similar.

After I upgraded python-vtk to version 5.4.2-5, the bug vanished.

As a consequence, I think this bug may be fixed by making sure that
mayavi2 pulls in python-vtk/5.4.2-5 or later.
Adding a versioned dependency, as suggested above, should be enough to
fix this bug.

If the Python Applications Packaging Team agrees with me, please
someone upload a new mayavi2 version to unstable having this versioned
dependency, thus closing the present bug report.

Thanks for your time.

And many thanks to Gaël, for trying to reproduce the issue and for
dedicating time to it!


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..................................................... Francesco Poli .
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