How to add a constraint on the item ?

[gustavolabbate]

There is a way to add some constraints on the item added? For instance, if I added 'a', I dont want to add 'a' again...

[gustavolabbate]

I´ve got it..

If someone need to know, UniqueAckQ do the trick..

My test example:

uq = persistqueue.UniqueAckQ('pathuq')
item = uq.get(raw=True)
print(item)
uq.ack(item)

When ack the item, it change to status 5

The put code :

uq = persistqueue.UniqueAckQ('pathuq')
uq.put(item)

When the queue is empty, with all items in status 5, get will wait for another item.