embedded db in python app?

[Alessio Pace]

Hi, I wrote a python application which needs to persistently store 2 *big*
hash maps at the end of its execution and retrieve them when it starts
again. Up to now I just used pickle to serialize 2 objects that
"encapsulate" those hash maps (and nothing else). I wonder if using an
embedded db (but which one??) to store those two hash maps would be faster
both in storing and in retrieval. 
Thanks.
Bye 

-- 
bye
Alessio Pace