python - Scrapy:爬虫不爬
问题描述
我显然对 python、scrapy 和编程很陌生。我正在尝试抓取该站点,但我的代码似乎不起作用。我发现的所有示例和教程都涉及简单明了的网站。或者,也许我只是无法理解它。我需要抓取数百个结果,我真的不想手动完成。
所以在这种情况下,我只是试图只从 div 对象中获取 href 以检查它是否有效。它没有。
import scrapy
import requests
class QuotesSpider(scrapy.Spider):
name = "items"
def start_requests(self):
urls = [
'https://www.bosch-professional.com/ar/es/dl/localizador-de-distribuidores/dealerslist/',
]
for url in urls:
yield scrapy.Request(url=url, callback=self.parse)
def parse(self, response):
list_doc = open('list_doc.txt', 'w')
for item in response.css('div.row.m-dealer_list__row'):
yield {
'text': item.css('a::attr(href)').extract(),
}
在终端上运行时(忽略机器人),它返回:
2019-01-30 23:57:13 [scrapy.middleware] INFO: Enabled extensions:
['scrapy.extensions.corestats.CoreStats',
'scrapy.extensions.telnet.TelnetConsole',
'scrapy.extensions.memusage.MemoryUsage',
'scrapy.extensions.logstats.LogStats']
2019-01-30 23:57:13 [scrapy.middleware] INFO: Enabled downloader middlewares:
['scrapy.downloadermiddlewares.httpauth.HttpAuthMiddleware',
'scrapy.downloadermiddlewares.downloadtimeout.DownloadTimeoutMiddleware',
'scrapy.downloadermiddlewares.defaultheaders.DefaultHeadersMiddleware',
'scrapy.downloadermiddlewares.useragent.UserAgentMiddleware',
'scrapy.downloadermiddlewares.retry.RetryMiddleware',
'scrapy.downloadermiddlewares.redirect.MetaRefreshMiddleware',
'scrapy.downloadermiddlewares.httpcompression.HttpCompressionMiddleware',
'scrapy.downloadermiddlewares.redirect.RedirectMiddleware',
'scrapy.downloadermiddlewares.cookies.CookiesMiddleware',
'scrapy.downloadermiddlewares.httpproxy.HttpProxyMiddleware',
'scrapy.downloadermiddlewares.stats.DownloaderStats']
2019-01-30 23:57:13 [scrapy.middleware] INFO: Enabled spider middlewares:
['scrapy.spidermiddlewares.httperror.HttpErrorMiddleware',
'scrapy.spidermiddlewares.offsite.OffsiteMiddleware',
'scrapy.spidermiddlewares.referer.RefererMiddleware',
'scrapy.spidermiddlewares.urllength.UrlLengthMiddleware',
'scrapy.spidermiddlewares.depth.DepthMiddleware']
2019-01-30 23:57:13 [scrapy.middleware] INFO: Enabled item pipelines:
[]
2019-01-30 23:57:13 [scrapy.core.engine] INFO: Spider opened
2019-01-30 23:57:13 [scrapy.extensions.logstats] INFO: Crawled 0 pages (at 0 pages/min), scraped 0 items (at 0 items/min)
2019-01-30 23:57:13 [scrapy.extensions.telnet] DEBUG: Telnet console listening on #NUMBER
2019-01-30 23:57:16 [scrapy.core.engine] DEBUG: Crawled (200) <GET https://www.bosch-professional.com/ar/es/dl/localizador-de-distribuidores/dealerslist/> (referer: None)
2019-01-30 23:57:16 [scrapy.core.engine] INFO: Closing spider (finished)
2019-01-30 23:57:16 [scrapy.statscollectors] INFO: Dumping Scrapy stats:
{'downloader/request_bytes': 276,
'downloader/request_count': 1,
'downloader/request_method_count/GET': 1,
'downloader/response_bytes': 70592,
'downloader/response_count': 1,
'downloader/response_status_count/200': 1,
'finish_reason': 'finished',
'finish_time': datetime.datetime(2019, 1, 31, 2, 57, 16, 541215),
'log_count/DEBUG': 2,
'log_count/INFO': 7,
'memusage/max': 57974784,
'memusage/startup': 57974784,
'response_received_count': 1,
'scheduler/dequeued': 1,
'scheduler/dequeued/memory': 1,
'scheduler/enqueued': 1,
'scheduler/enqueued/memory': 1,
'start_time': datetime.datetime(2019, 1, 31, 2, 57, 13, 861593)}
2019-01-30 23:57:16 [scrapy.core.engine] INFO: Spider closed (finished)
感谢您的任何帮助,您可以提供。
解决方案
据我所见,页面上确实没有这样的元素:
In [2]: fetch("https://www.bosch-professional.com/ar/es/dl/localizador-de-distribuidores/dealerslist/")
2019-01-31 09:31:47 [scrapy.core.engine] INFO: Spider opened
2019-01-31 09:31:48 [scrapy.core.engine] DEBUG: Crawled (200) <GET https://www.bosch-professional.com/ar/es/dl/localizador-de-distribuidores/dealerslist/> (referer: None, latency: 0.87 s)
In [3]: response.css('div.row.m-dealer_list__row')
Out[3]: []
但是,如果您尝试:
In [4]: response.css('div.m-dealer_citylist__card a::text').extract()
Out[4]:
[u'25 DE MAYO - BS AS',
u'25 DE MAYO - LA PAMP',
u'25 DE MAYO',
u'9 DE ABRIL',
...
u'ZENON PEREYRA',
u'Z\xc1RATE']
推荐阅读
- python - Python Winpdb 问题:无法打开文件'session_manager\..\rpdb2.py':[Errno 2] 没有这样的文件或目录
- python - Python,如何更改另一个类实例的方法
- currency - Odoo 货币转换
- c# - 我的 C# 代码显示文件,但它必须显示目录
- gitlab - GitLab 管道 - 基于 Approval 的代码提交、单元测试和合并
- c# - 在 C# 中将 datagridview 中的日期字符串格式化为 dd/MM/yyyy
- r - 汇总从“S”到下一个的列值
- laravel - (livewire-datatables)无法访问我与同一模型的两个关系
- delta-lake - 在 Delta 湖上创建金表
- r - 按组保留所有变量的最后一个非缺失观察