python

转化时间戳

time.strftime("%Y-%m-%d %H:%M:%S",time.localtime(int(data["starttime"])))

多线程queue

class GetMemInfoThread(threading.Thread):
    def __init__(self, node_queue, result_queue, compute_list):
        threading.Thread.__init__(self)
        self.nq = node_queue
        self.rq = result_queue
        self.compute_list=compute_list
    def run(self):
        while not self.nq.empty():
            node = self.nq.get()
            print "start ",node
            meminfo = get_compute_node_memroy_info(node, self.compute_list)
            print "end ",node
            if isinstance(meminfo, ComputeNodeMemoryInfo):
                self.rq.put(meminfo)


def get_all_compute_node_memory_info_mt(controller, treadnum=1):
    print "get compute nodes list", controller
    compute_list = get_compute_nodes_list(controller)
    print "get compute node:", len(compute_list)
    node_queue = Queue.Queue()
    result_queue = Queue.Queue()
    for node in compute_list:
        node_queue.put(node)
    threads = []
    for t in xrange(treadnum):
        threads.append(GetMemInfoThread(node_queue, result_queue, compute_list))
    print "start thread", treadnum
    starttime = time.time()
    for t in threads:
        t.start()
    for t in threads:
        t.join()
    print "done:",time.time()-starttime
    print "get results:",result_queue.qsize()

docstring

https://www.datacamp.com/community/tutorials/docstrings-python#comments

 排序

list1 = [3,5,-4,-1,0,-2,-6]
sorted(list1, key=lambda x: abs(x))