[PATCH] Make pyblock compatible with new pyparted

[Joel Granados Moreno <jgranado redhat com>]

Hello

These are the changes that are necessary to make pyblock compatible with
new pyparted.  I don't want to commit yet, but I would like to hear some
comments about the saneness of the changes.

Its a good thing that pyblock doesn't really use pyparted extensively.

Regards


--
Joel Andres Granados
Brno, Czech Republic, Red Hat.