nipy/dipy — pull request #125 by arokem (2013-01-24 19:51:55+00:00)
Title: BF: Remove 'mayavi' directory, to avoid triggering mayavi import warning...

Found it! This was because of the further nesting of spheres under a directory called 'mayavi'. The viz __init__ file was looking for a module called 'mlab' under that directory, instead of importing from mayavi installed on my machine. When it couldn't find that, it emitted an import error and we got that warning.