python - 执行队列中的函数

Question

我有一个例子，应该展示我想做的事情

queue = 2

def function():
    print 'abcd'
    time.sleep(3)

def exec_times(times):
    #do something
    function()

def exec_queue(queue):
    #do something
    function()

exec_times(3)
#things need be working while it waiting for the function finish
time.sleep(10)

结果应该是

abcd
abcd

#after finish the first two function executions
abcd

那么，有没有一种方法可以在不使用线程的情况下做到这一点？

我的意思是一些glib函数来完成这项工作。

Answer 1

如果您想避免线程，一种选择是使用多个进程。如果您使用的是 python 2.6，请查看 multiprocessing模块。如果是 python 2.5，请查看 pyprocessing .

注意多处理文档中的“Process Pools ”，它似乎可以满足您的要求:

One can create a pool of processes which will carry out tasks submitted to it with the Pool class.

class multiprocessing.Pool([processes[, initializer[, initargs[, maxtasksperchild]]]])

A process pool object which controls a pool of worker processes to which jobs can be submitted. It supports asynchronous results with timeouts and callbacks and has a parallel map implementation.