Would your application be crippled by dropping those
references, as below, before releasing the lock?

Better, write a lock-protected get_value()
function that returns the value, and no references
to persistent instances.

If I remember correctly, your database is cycle-free,
so the gc garbage collector probably isn't doing anything
for you, or causing trouble.  If it were, you
could call gc.disable().

On Sep 21, 2006, at 2:43 PM, Jesus Cea wrote:

> def example(s,key) :
>   global_lock.adquire()
>   conn.abort()  # Be sure your data is fresh
>   root=conn.get_root()
>   data=root["data"]
>   value=data[key] # Retrieve the data
>   conn.commit()
     root = None
     data = None
>   global_lock.release()
>   s.send(value) # Can take a lot of time
>   return