scrapy设置ip池问题

import random, base64

class ProxyMiddleware(object):

    proxyList = [‘61.129.70.131‘ , ‘120.204.85.29‘]

    def process_request(self, request, spider):
        # Set the location of the proxy
        pro_adr = random.choice(self.proxyList)
        print("USE PROXY -> "+pro_adr)
        request.meta[‘proxy‘] = "http://"+ pro_adr

DOWNLOADER_MIDDLEWARES = {
#    ‘ceshisc.middlewares.CeshiscDownloaderMiddleware‘: 543,
# ‘scrapy.downloadermiddlewares.httpproxy.HttpProxyMiddleware‘:123,
‘ceshisc.middlewares.ProxyMiddleware‘: 100,
‘scrapy.contrib.downloadermiddleware.httpproxy.HttpProxyMiddleware‘: 110
}
ITEM_PIPELINES = {
   ‘ceshisc.pipelines.CeshiscPipeline‘: 300,
}

import scrapy

class DmozSpider(scrapy.Spider):
    name = "demo"
    allowed_domains = ["baidu.com"]
    start_urls = [‘http://www.baidu.com/‘]
    

    def parse(self, response):
        print("进来了...........数据")