提取电子邮件时延迟

Question

我正在使用scrapy收集一些数据，我需要在提取电子邮件时延迟代码。所以不是整个代码，而是只有当它到达电子邮件提取部分时。非常感谢任何帮助。

import re
import scrapy
from scrapy.http import Request


# item class included here
class DmozItem(scrapy.Item):
    # define the fields for your item here like:
    link = scrapy.Field()
    attr = scrapy.Field()
    title = scrapy.Field()
    tag = scrapy.Field()

class DmozSpider(scrapy.Spider):
    name = "dmoz"
    allowed_domains = ["craigslist.org"]
    start_urls = [
    "http://asheville.craigslist.org/bab/5078377070.html"
    ]

    BASE_URL = 'http://asheville.craigslist.org/'


    def parse_contact(self, response):
        item = response.meta['item']
        item["attr"] = "".join(response.xpath("//div[@class='anonemail']//text()").extract())
        return item

Answer 1

使用time.sleep()。它“暂停[s]执行当前线程达到给定的秒数。”