Unable to view using the sample code

[emanhamed]

I'm trying to visualize a 3D textured mesh using this sample code:
import menpo3d import matplotlib import PyQt4 import time mesh = menpo3d.io.import_builtin_asset('/home/eman/Desktop/testMesh.obj') mesh.view() time.sleep(0.8)
But it is only opening the viewer but not showing the mesh. Why is this happening?