Opensot fails to start with " 'NoneType' object has no attribute 'set_cursor'"

Running 11.10 x32 with Unity 2d. MLT seems installed fine:

$ python
Python 2.7.2+ (default, Oct 4 2011, 20:03:08)
[GCC 4.6.1] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import mlt
>>> mlt.Factory().init()
<mlt.Repository; proxy of <Swig Object of type 'Mlt::Repository *' at 0xb72c6a58> >

When starting openshot, I get this last error:
$ openshot
... see full log @attachment

------------------------- ERROR 2 ------------------------------
Failed to import 'from openshot.openshot import main'
Error Message: 'NoneType' object has no attribute 'set_cursor'
----------------------------------------------------------------
...bottom of built-in error message.....

Packages:

ii openshot 1.4.0-1
ii openshot-doc 1.4.0-1
ii libmlt++3 0.7.4-3
ii libmlt-data 0.7.4-3
rc libmlt3 0.6.2-2
ii libmlt4 0.7.4-3
ii python-mlt3 0.7.4-3