I am new to SfePy,

After installing everything, I run $ ./simple.py examples/diffusion/poisson.py as the tutorial says. The file cylinder.vtk is created. Then I run ./postproc.py cylinder.vtk but when I do so I get the next error:

traits.trait_errors.TraitError: The 'current_scene' trait of an Engine instance must be a Scene or None, but a value of <enthought.mayavi.core.scene.Scene object at 0xc6ff6b0> <class 'enthought.mayavi.core.scene.Scene'> was specified.

I can run mayavi first and then load the file cylinder.vtk but it shows the cylinder all blue and not as in the tutorial online.

Any help will be much appreciated!!