how to do -vv for very verbose?

[Hari Sekhon]

I'm using optparse.Optionparser to take switches for a script I'm 
writing, but I can't see how to give it -vv for very verbose.

the option for -v is simply set to True by the option parser if present, 
whereas I really want a numeric value, 1 if there is -v and 2 if there 
is -vv.

Any ideas on how to do this?

I think I'll have to stop using  action="store_true".

-h