bash-3.00$ gdesklets shell

You're running gDesklets for the first time.
gDesklets will start a requirements check now...

Checking requirements:
 - sys ... found
 - xml.parsers.expat ... found
 - xml.sax ... found
 - gtk ... found
 - ORBit ... found
 - bonobo.ui ... missing
Version check failed.

bonobo python bindings are required.