A few changes to improve upon the script:

A few changes to improve upon the script:

- try to make it stand alone python script
  - uses xmlrpc directly; no longer needs to import plc module

- fetches nodenetworks for all hosts and caches it locally
  to avoid having to invoke the API n times (where n is the
  # of nodes at the PLC).

Still needs:

- a proper help/usage message printed

- a way to export full functionality (e.g., delete)

- a way to specify XMLRPC_SERVER as a command line option, as
  now it by default assumes www.planet-lab.org/PLCAPI