將python數據導出到csv文件

Question

我正在嘗試通過命令行導出文件：

scrapy crawl tunisaianet -o save.csv -t csv

但是什么都沒有發生，有什么幫助嗎？

這是我的代碼：

import scrapy
import csv
from tfaw.items import TfawItem


class TunisianetSpider(scrapy.Spider):
    name = "tunisianet"
    allowed_domains = ["tunisianet.com.tn"]
    start_urls = [
        'http://www.tunisianet.com.tn/466-consoles-jeux/',
    ]

    def parse(self, response):
        item = TfawItem()
        data= []
        out = open('out.csv', 'a')
        x = response.xpath('//*[contains(@class, "ajax_block_product")]')
        for i in range(0, len(x)):
            item['revendeur'] = response.xpath('//*[contains(@class, "center_block")]/h2/a/@href').re('tunisianet')[i]
            item['produit'] = response.xpath('//*[contains(@class, "center_block")]/h2/a/text()').extract()[i]
            item['url'] = response.xpath('//*[contains(@class, "center_block")]/h2/a/@href').extract()[i]
            item['description'] = response.xpath('//*[contains(@class, "product_desc")]/a/text()').extract()[i]
            item['prix'] = response.xpath('//*[contains(@class, "price")]/text()').extract()[i]
            data = item['revendeur'], item['produit'], item['url'], item['description'], item['prix']
            yield data
            out.write(str(data))
            out.write('\n')

Answer 1

我假設您遇到以下錯誤：

ERROR: Spider must return Request, BaseItem, dict or None, got 'tuple' in <GET http://www.tunisianet.com.tn/466-consoles-jeux>

具體說出了什么問題，您將元組作為項目返回，將收益代碼更改為：

...
item['prix'] = response.xpath('//*[contains(@class, "price")]/text()').extract()[i]
yield item