заставить работать mayavi

> ./test.py
Traceback (most recent call last):
  File "./test.py", line 8, in <module>
    from enthought.mayavi import mlab
  File "/usr/lib/python2.6/site-packages/enthought/mayavi/mlab.py", line 27, in <module>
    from enthought.mayavi.tools.camera import view, roll, yaw, pitch, move
  File "/usr/lib/python2.6/site-packages/enthought/mayavi/tools/camera.py", line 23, in <module>
    from engine_manager import get_engine
  File "/usr/lib/python2.6/site-packages/enthought/mayavi/tools/engine_manager.py", line 9, in <module>
    from enthought.traits.api import HasTraits, Instance
ImportError: No module named api