Clear all items from the queue

Question

How can I clear a queue. For example I have datas in a queue, but for some reason I don\'t need the existing data, and just want to clear the queue.

Is there any wa

Answer 1

This seems to do it pretty well for me. I welcome comments/additions in case I missed anything important.

class Queue(queue.Queue):
  '''
  A custom queue subclass that provides a :meth:`clear` method.
  '''

  def clear(self):
    '''
    Clears all items from the queue.
    '''

    with self.mutex:
      unfinished = self.unfinished_tasks - len(self.queue)
      if unfinished <= 0:
        if unfinished < 0:
          raise ValueError('task_done() called too many times')
        self.all_tasks_done.notify_all()
      self.unfinished_tasks = unfinished
      self.queue.clear()
      self.not_full.notify_all()