python多进程获取返回值

1. multiprocessing.Process

def worker(procnum, return_dict):
'''worker function'''
print str(procnum) + ' represent!'
return_dict[procnum] = procnum

if __name__ == '__main__':
manager = Manager()
return_dict = manager.dict()
jobs = []
for i in range(5):
p = multiprocessing.Process(target=worker, args=(i,return_dict))
jobs.append(p)
p.start()

for proc in jobs:
proc.join()
# 最后的结果是多个进程返回值的集合
print return_dict.values()

2. multiprocessing.Pool

p = multiprocessing.Pool(1)
rslt = p.map(test,('i',))
print rslt