Scrapy 2.10 Documentationinto a Python console running inside your Scrapy process, to introspect and debug your crawler • Plus other goodies like reusable spiders to crawl sites from Sitemaps and XML/CSV feeds, a media pipeline mean we want to select only the text elements directly insideelement. If we don’t specify ::text, we’d get the full title element, including its tags: >>> response.css("title").getall() [' Quotes a').get() 'Next ' This gets the anchor element, but we want the attribute href. For that, Scrapy supports a CSS extension that lets you select the 0 码力 | 419 页 | 1.73 MB | 1 年前3
Scrapy 2.7 Documentationinto a Python console running inside your Scrapy process, to introspect and debug your crawler • Plus other goodies like reusable spiders to crawl sites from Sitemaps and XML/CSV feeds, a media pipeline mean we want to select only the text elements directly insideelement. If we don’t specify ::text, we’d get the full title element, including its tags: >>> response.css('title').getall() [' Quotes a').get() 'Next ' This gets the anchor element, but we want the attribute href. For that, Scrapy supports a CSS extension that lets you select the 0 码力 | 401 页 | 1.67 MB | 1 年前3
Scrapy 2.9 Documentationinto a Python console running inside your Scrapy process, to introspect and debug your crawler • Plus other goodies like reusable spiders to crawl sites from Sitemaps and XML/CSV feeds, a media pipeline mean we want to select only the text elements directly insideelement. If we don’t specify ::text, we’d get the full title element, including its tags: >>> response.css("title").getall() [' Quotes a').get() 'Next ' This gets the anchor element, but we want the attribute href. For that, Scrapy supports a CSS extension that lets you select the 0 码力 | 409 页 | 1.70 MB | 1 年前3
Scrapy 2.8 Documentationinto a Python console running inside your Scrapy process, to introspect and debug your crawler • Plus other goodies like reusable spiders to crawl sites from Sitemaps and XML/CSV feeds, a media pipeline mean we want to select only the text elements directly insideelement. If we don’t specify ::text, we’d get the full title element, including its tags: >>> response.css('title').getall() [' Quotes a').get() 'Next ' This gets the anchor element, but we want the attribute href. For that, Scrapy supports a CSS extension that lets you select the 0 码力 | 405 页 | 1.69 MB | 1 年前3
Scrapy 2.11.1 Documentationinto a Python console running inside your Scrapy process, to introspect and debug your crawler • Plus other goodies like reusable spiders to crawl sites from Sitemaps and XML/CSV feeds, a media pipeline mean we want to select only the text elements directly insideelement. If we don’t specify ::text, we’d get the full title element, including its tags: >>> response.css("title").getall() [' Quotes a').get() 'Next ' This gets the anchor element, but we want the attribute href. For that, Scrapy supports a CSS extension that lets you select the 0 码力 | 425 页 | 1.76 MB | 1 年前3
Scrapy 2.11 Documentationinto a Python console running inside your Scrapy process, to introspect and debug your crawler • Plus other goodies like reusable spiders to crawl sites from Sitemaps and XML/CSV feeds, a media pipeline mean we want to select only the text elements directly insideelement. If we don’t specify ::text, we’d get the full title element, including its tags: >>> response.css("title").getall() [' Quotes a').get() 'Next ' This gets the anchor element, but we want the attribute href. For that, Scrapy supports a CSS extension that lets you select the 0 码力 | 425 页 | 1.76 MB | 1 年前3
Scrapy 2.11.1 Documentationinto a Python console running inside your Scrapy process, to introspect and debug your crawler • Plus other goodies like reusable spiders to crawl sites from Sitemaps and XML/CSV feeds, a media pipeline mean we want to select only the text elements directly insideelement. If we don’t specify ::text, we’d get the full title element, including its tags: >>> response.css("title").getall() [' Quotes a').get() 'Next ' This gets the anchor element, but we want the attribute href. For that, Scrapy supports a CSS extension that lets you select the 0 码力 | 425 页 | 1.79 MB | 1 年前3
Scrapy 2.7 Documentationhooking into a Python console running inside your Scrapy process, to introspect and debug your crawler Plus other goodies like reusable spiders to crawl sites from Sitemaps [https://www.sitemaps.org/index mean we want to select only the text elements directly insideelement. If we don’t specify ::text, we’d get the full title element, including its tags: >>> response.css('title').getall() [' Quotes a').get() 'Next ' This gets the anchor element, but we want the attribute href. For that, Scrapy supports a CSS extension that lets you select the 0 码力 | 490 页 | 682.20 KB | 1 年前3
Scrapy 2.2 Documentationinto a Python console running inside your Scrapy process, to introspect and debug your crawler • Plus other goodies like reusable spiders to crawl sites from Sitemaps and XML/CSV feeds, a media pipeline mean we want to select only the text elements directly insideelement. If we don’t specify ::text, we’d get the full title element, including its tags: >>> response.css('title').getall() [' Quotes directly on a SelectorList instance avoids an IndexError and returns None when it doesn’t find any element matching the selection. There’s a lesson here: for most scraping code, you want it to be resilient 0 码力 | 348 页 | 1.35 MB | 1 年前3
Scrapy 2.4 Documentationinto a Python console running inside your Scrapy process, to introspect and debug your crawler • Plus other goodies like reusable spiders to crawl sites from Sitemaps and XML/CSV feeds, a media pipeline mean we want to select only the text elements directly insideelement. If we don’t specify ::text, we’d get the full title element, including its tags: >>> response.css('title').getall() [' Quotes directly on a SelectorList instance avoids an IndexError and returns None when it doesn’t find any element matching the selection. There’s a lesson here: for most scraping code, you want it to be resilient 0 码力 | 354 页 | 1.39 MB | 1 年前3
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