Python 3.4.0 import error

Hi there, I'm from my Linux Box, currently running Xubuntu 14.04 64 with
Python 3.4.0 and facing the following trouble:

at

from graph_tool.all import *

I get this:

** (.:2907): WARNING **: Couldn't connect to accessibility bus: Failed to
connect to socket /tmp/dbus-7yP0jhxsND: Connection refused

I really do not know how to solve it !

Any suggestions ?

This is not an error, it is just a warning. You can safely ignore it.

This has nothing to do with graph-tool; it is triggered by GTK+.

Best,
Tiago