Mayavi mlab usage trouble

I’m having trouble using mayavi.mlab even though I have been able to install mayavi using Conda.

I can do the following

mv = pyimport("mayavi") #works
but cannot do either of the following
mlab = pyimport("mayavi.mlab")
or use
I get the following error
The Python package mayavi.mlab could not be found by pyimport.

I have tried using pygui_start with various backends before importing mayavi to no avail. Is anyone else using Mayavi for plotting in Julia v 1.1.1?