Variant of Queue that retrieves most recently added entries first.
Initialize self. See help(type(self)) for accurate signature.
Return True if the queue is empty, False otherwise (not reliable!).
Return True if the queue is full, False otherwise (not reliable!).
Remove and return an item from the queue.
Remove and return an item from the queue without blocking.
Blocks until all items in the Queue have been gotten and processed.
put(item[, block, timeout])
Put an item into the queue.
Put an item into the queue without blocking.
Return the approximate size of the queue (not reliable!).
Indicate that a formerly enqueued task is complete.