* the intention here is to automatically rebuild db when upgrading pisi

package, i am committing the intended code, commented out, let's think
  about this for a very short while. i think it's just too difficult for
  the user to know when to run rebuild-db. an exception is thrown after
  rebuilding the db, because the interrupted command, whatever it was, 
  may have to be invoked again. or better still, the application must 
  restart itself somehow :/ or we can make better use of the interpreted
  nature of python (i'm still thinking like a c++ coder)

pisi/operations.py

@@ -426,6 +426,10 @@ def upgrade_pkg_names(A = [], bypass_safety = False):
         
     #if 'pisi' in order:
     #    ctx.ui.warning(_("PISI package has been upgraded. You should run rebuild-db."))
+    #    pisi.api.finalize()
+    #    reload(pisi)
+    #    pisi.api.init()
+    #    pisi.api.rebuild_db()
     #    raise PisiUpgradeException()
 
 def plan_upgrade(A, ignore_build = False):