erfannoury

from Queue import Queue
from threading import RLock

class SetQueue(Queue):
    """
    Queue class is thread-safe, so it can be used in scenarios where multiple threads will try accessing the queue.
    But default implementation has a downside, it is not iterable and you can't check if it contains an item or not,
    so you can't see if you are adding a duplicate item or not.
    To overcome this problem, a SetQueue implementation is propsed.
    This implementation is grabbed from here: http://stackoverflow.com/questions/1581895/how-check-if-a-task-is-already-in-python-queue