找不到Scrapy CrawlSpider屬性

Question

使用Scrapy 1.4.0和我在網上找到的修改后的模板，出現以下錯誤：

AttributeError：模塊“ scrapy”沒有屬性“ CrawlSpider”

該日志似乎沒有顯示其他任何令人感興趣的內容。

碼：

import scrapy
from scrapy.spiders import Rule
from scrapy.linkextractors import LinkExtractor

class TechcrunchSpider(scrapy.CrawlSpider):
    #name of the spider
    name = 'stltoday'

    #list of allowed domains
    allowed_domains = ['http://graphics.stltoday.com/']

    #starting url for scraping
    start_urls = ['http://graphics.stltoday.com/apps/payrolls/salaries/2_1/']

    rules = [
    Rule(LinkExtractor(
        allow=['/apps/payrolls/salaries/.*/$']),
        callback='parse',
        follow=True),
    ]

    #setting the location of the output csv file
    custom_settings = {
        'FEED_URI' : 'tmp/stltoday.csv'
    }

    def parse(self, response):
        #Remove XML namespaces
        response.selector.remove_namespaces()

        #Extract article information
        name = response.xpath("//th::text").extract()
        allother = response.xpath('//table[@class="table--department"]//td').extract()


        for item in zip(name,allother):
            scraped_info = {
                'name' : item[0],
                'allother' : item[1]
            }

            yield scraped_info

Answer 1

該錯誤意味着scrapy模塊不包含CrawlSpider類。 如評論中所述，這是因為scrapy文檔發生了更改。 快速解決方案應該是改變

class TechcrunchSpider(scrapy.CrawlSpider):

至

class TechcrunchSpider(scrapy.spiders.CrawlSpider):

這應該解決問題！