【python】多进程共享变量

#!/usr/bin/python
# coding=utf-8

import json
from multiprocessing import Process, Lock, Manager

def deal(data, lock, share_dict):
# do something
share_dict["test"] = 10
mydict = dict(share_dict)  # 注意，共享dict无法直接dumps，会报类型错误，必须先转换为普通字典
json.dumps(mydict)

def deal_multi():
data = "test"
n = 10
process = list()
lock = Lock()    #  多进程锁
m = Manager()
share_dict = m.dict()   #  多进程共享变量 字典
for i in xrange(n):
process.append(Process(target=deal, args=(data, lock, share_dict)))
for p in process:
p.start()
for p in process:
p.join()

if __name__ == '__main__':
deal_multi()