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python - Scrapy - 删除列表输出中的 html 标签

问题描述

我正在尝试编写一个小脚本来提取蒸汽游戏标签并将它们存储在 csv 文件中。我目前遇到的问题是我不知道如何从输出中删除 html 标签。我的代码如下

from __future__ import absolute_import
import scrapy
from Example.items import SteamItem
from scrapy.selector import HtmlXPathSelector


class SteamSpider(scrapy.Spider):
    name = 'steamspider'
    allowed_domains = ['https://store.steampowered.com/app']
    start_urls = ["https://store.steampowered.com/app/578080/PLAYERUNKNOWNS_BATTLEGROUNDS/",]

def parse(self, response):
    hxs = HtmlXPathSelector(response)
    tags = hxs.xpath('//*[@id="game_highlights"]/div[1]/div/div[4]/div/div[2]')
    for sel in tags:
        item = SteamItem()
        item['gametags'] = sel.xpath('.//a/text()').extract()
        item['gametitle'] = sel.xpath('//html/body/div[1]/div[7]/div[3]/div[1]/div[2]/div[2]/div[2]/div/div[3]/text()').extract()
    yield item

我的物品类别：

class SteamItem(scrapy.Item):
    #defining item fields
    url = scrapy.Field()
    gametitle = scrapy.Field()
    gametags = scrapy.Field()

然后我的输出如下所示：

[u'\r\n\t\t\t\t\t\t\t\t\t\t\t\tSurvival\t\t\t\t\t\t\t\t\t\t\t\t',
 u'\r\n\t\t\t\t\t\t\t\t\t\t\t\tShooter\t\t\t\t\t\t\t\t\t\t\t\t',
 u'\r\n\t\t\t\t\t\t\t\t\t\t\t\tMultiplayer\t\t\t\t\t\t\t\t\t\t\t\t',
 u'\r\n\t\t\t\t\t\t\t\t\t\t\t\tPvP\t\t\t\t\t\t\t\t\t\t\t\t',
 u'\r\n\t\t\t\t\t\t\t\t\t\t\t\tThird-Person Shooter\t\t\t\t\t\t\t\t\t\t\t\t',
 u'\r\n\t\t\t\t\t\t\t\t\t\t\t\tFPS\t\t\t\t\t\t\t\t\t\t\t\t',
 u'\r\n\t\t\t\t\t\t\t\t\t\t\t\tAction\t\t\t\t\t\t\t\t\t\t\t\t',
 u'\r\n\t\t\t\t\t\t\t\t\t\t\t\tBattle Royale\t\t\t\t\t\t\t\t\t\t\t\t',
 u'\r\n\t\t\t\t\t\t\t\t\t\t\t\tOnline Co-Op\t\t\t\t\t\t\t\t\t\t\t\t',
 u'\r\n\t\t\t\t\t\t\t\t\t\t\t\tTactical\t\t\t\t\t\t\t\t\t\t\t\t',
 u'\r\n\t\t\t\t\t\t\t\t\t\t\t\tCo-op\t\t\t\t\t\t\t\t\t\t\t\t',
 u'\r\n\t\t\t\t\t\t\t\t\t\t\t\tEarly Access\t\t\t\t\t\t\t\t\t\t\t\t',
 u'\r\n\t\t\t\t\t\t\t\t\t\t\t\tFirst-Person\t\t\t\t\t\t\t\t\t\t\t\t',
 u'\r\n\t\t\t\t\t\t\t\t\t\t\t\tViolent\t\t\t\t\t\t\t\t\t\t\t\t',
 u'\r\n\t\t\t\t\t\t\t\t\t\t\t\tStrategy\t\t\t\t\t\t\t\t\t\t\t\t',
 u'\r\n\t\t\t\t\t\t\t\t\t\t\t\tThird Person\t\t\t\t\t\t\t\t\t\t\t\t',
 u'\r\n\t\t\t\t\t\t\t\t\t\t\t\tCompetitive\t\t\t\t\t\t\t\t\t\t\t\t',
 u'\r\n\t\t\t\t\t\t\t\t\t\t\t\tTeam-Based\t\t\t\t\t\t\t\t\t\t\t\t',
 u'\r\n\t\t\t\t\t\t\t\t\t\t\t\tDifficult\t\t\t\t\t\t\t\t\t\t\t\t',
 u'\r\n\t\t\t\t\t\t\t\t\t\t\t\tSimulation\t\t\t\t\t\t\t\t\t\t\t\t'],

我的目标是删除所有标签 "u'\r\n\t.....\t

有任何想法吗？

谢谢！

标签： pythonweb-scrapingscrapy

解决方案

由于您使用的是 Scrapy 框架，因此您可以使用 Scrapy 附带的名为 w3lib 的库

import w3lib.html
output= w3lib.html.remove_tags(input)
print(output)

scrapy.utils.markup 于 2019 年贬值，请改用 w3lib。

您可以参考https://w3lib.readthedocs.io/en/latest/index.html了解更多信息。

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