multiprocessing 多线程报错

venux

#coding:utf-8
from gevent import monkey; monkey.patch_socket()
import requests
from bs4 import BeautifulSoup
import os
import gevent
from gevent.queue import Queue
from multiprocessing import Process
import time


'''
#############################
'''
def xiancheng_def(urls):

    gevent.joinall([gevent.spawn(get_pic_from_tag_url,i) for i in urls])


def jincheng_def(tasks):
    flag=8
    urls=[]
    i=0
    processes=[]
    while not tasks.empty():
        i+=1
        urls.append(tasks.get())
        if i == flag:
            p=Process(target=xiancheng_def,args=(urls,))
            processes.append(p)
            urls=[]
            i=0
    if urls:
        p=Process(target=xiancheng_def,args=(urls,))
        processes.append(p)
    print processes
    map(Process.start,tuple(processes))


if __name__ == '__main__':
    main_path=raw_input("请如入保存路径  :")
    tasks = Queue()
    session = requests.Session()


    Entry_url='http://www.xxx.com/ent//' #
    all_tag_url_queue(Entry_url)
    print tasks
    # for i in range(17):
    #     tasks.get()
    # gevent.joinall([
    #     gevent.spawn(get_pic_from_tag_url),
    #     gevent.spawn(get_pic_from_tag_url),
    #     gevent.spawn(get_pic_from_tag_url),
    #     gevent.spawn(get_pic_from_tag_url),
    #     gevent.spawn(get_pic_from_tag_url),
    #     gevent.spawn(get_pic_from_tag_url),
    # ])

    jincheng_def(tasks)




每次都执行一个进程 ,然后报错如下
[err] evmap.c:401: Assertion ctx failed in evmap_io_active
[err] evmap.c:401: Assertion ctx failed in evmap_io_active


使用单进程+gevent没有代码没有问题,网上查不到有关信息,请帮忙看看

venux

好像和requests 有关系，说是要用gevetn自己封装的grequests