ValueError: cannot set toolkit to wx because it has already been set to qt4

Question

The following import

from mayavi import mlab

generates the value error.

I installed Mayavi using setuptools (as described here). The gui works fine (some bugs here and there but still I can use the modules etc.) I am guessing some thing didn't went well with the install. Any suggestions how I can fix my installation(if that is what the problem is) ?

Edit 1:

I uninstalled mayavi and reinstalled it (using pip), but the valueError is still present.

Edit 2:

The system I have the installation on is a virtual Ubuntu 15.04 (using VMware 6.0.6). I have pasted the pip install mayavi output here.

Edit 3: After reinstalling a previous version of Mayavi : 4.3.1, I still get the same error. I am using Python : 2.7.9.

Answer 1

Don't know, whether my answer is relevant now, but this helped me: I have PyQt4 on my machine, but I've installed wxPython for Mayavi, so they were conflicting. I've removed wxPython and now it works just perfect.

Answer 2

There is a post on SO :

How to get MayaVi2 to default to/use Qt rather than wx?

where it shows how you can set qt4, without having to uninstall wxPython (as the other answer suggests) :

export ETS_TOOLKIT=qt4

I found out about it among the issues section on the Mayavi github : Issue 265