Scrapy 2.10 Documentationtry selecting elements using CSS with the response object: >>> response.css("title") [query='descendant-or-self::title' data=' Quotes to Scrape '>] The result of running response ['Quotes to Scrape'] There are two things to note here: one is that we’ve added ::text to the CSS query, to mean we want to select only the text elements directly insideelement. If we don’t specify Scrapy selectors also support using XPath expressions: >>> response.xpath("//title") [<Selector <mark>query</mark>='//title' data='<title>Quotes to Scrape '>] >>> response.xpath("//title/text()").get() 'Quotes0 码力 | 419 页 | 1.73 MB | 1 年前3
Scrapy 1.7 Documentationfamiliar with some Scrapy common practices. Broad Crawls Tune Scrapy for crawling a lot domains in parallel. Using your browser’s Developer Tools for scraping Learn how to scrape with your browser’s developer ['Quotes to Scrape'] There are two things to note here: one is that we’ve added ::text to the CSS query, to mean we want to select only the text elements directly insideelement. If we don’t specify the quote HTML elements with: >>> response.css("div.quote") Each of the selectors returned by the <mark>query</mark> above allows us to run further queries over their sub-elements. Let’s assign the first selector to</div> <div class="doc-info" data-v-2d813be8><span data-v-2d813be8>0 码力 | 391 页 | 598.79 KB <span class="hidden-xs-only" data-v-2d813be8>| 1 年前</span></span> <div role="slider" aria-valuenow="3" aria-valuetext="3" aria-valuemin="0" aria-valuemax="5" tabindex="0" class="el-rate float-right" data-v-2d813be8><span class="el-rate__item" style="cursor:auto;"><i class="el-rate__icon el-icon-star-on" style="color:#F7BA2A;"><!----></i></span><span class="el-rate__item" style="cursor:auto;"><i class="el-rate__icon el-icon-star-on" style="color:#F7BA2A;"><!----></i></span><span class="el-rate__item" style="cursor:auto;"><i class="el-rate__icon el-icon-star-on" style="color:#F7BA2A;"><!----></i></span><span class="el-rate__item" style="cursor:auto;"><i class="el-rate__icon el-icon-star-on" style="color:#EFF2F7;"><!----></i></span><span class="el-rate__item" style="cursor:auto;"><i class="el-rate__icon el-icon-star-on" style="color:#EFF2F7;"><!----></i></span><span class="el-rate__text" style="color:#ff9900;">3</span></div></div></li><li data-v-2d813be8><h3 class="doc-title" data-v-2d813be8><a href="/document/b05fc6d63355c3a3" target="_blank" class="el-link el-link--primary" data-v-2d813be8><img src="/static/images/pdf_24.png" alt="pdf文档" data-v-2d813be8> <span data-v-2d813be8>Scrapy 1.7 Documentation</span></a></h3> <div class="doc-desc" data-v-2d813be8>['Quotes to Scrape'] There are two things to note here: one is that we’ve added ::text to the CSS <mark>query</mark>, to mean we want to select only the text elements directly inside <title> element. If we don’t specify the quote HTML elements with: >>> response.css("div.quote") Each of the selectors returned by the <mark>query</mark> above allows us to run further queries over their sub-elements. Let’s assign the first selector to response.follow(href, self.parse) def parse_author(self, response): def extract_with_css(<mark>query</mark>): return response.css(<mark>query</mark>).get(default='').strip() yield { 'name': extract_with_css('h3.author-title::text')</div> <div class="doc-info" data-v-2d813be8><span data-v-2d813be8>0 码力 | 306 页 | 1.23 MB <span class="hidden-xs-only" data-v-2d813be8>| 1 年前</span></span> <div role="slider" aria-valuenow="3" aria-valuetext="3" aria-valuemin="0" aria-valuemax="5" tabindex="0" class="el-rate float-right" data-v-2d813be8><span class="el-rate__item" style="cursor:auto;"><i class="el-rate__icon el-icon-star-on" style="color:#F7BA2A;"><!----></i></span><span class="el-rate__item" style="cursor:auto;"><i class="el-rate__icon el-icon-star-on" style="color:#F7BA2A;"><!----></i></span><span class="el-rate__item" style="cursor:auto;"><i class="el-rate__icon el-icon-star-on" style="color:#F7BA2A;"><!----></i></span><span class="el-rate__item" style="cursor:auto;"><i class="el-rate__icon el-icon-star-on" style="color:#EFF2F7;"><!----></i></span><span class="el-rate__item" style="cursor:auto;"><i class="el-rate__icon el-icon-star-on" style="color:#EFF2F7;"><!----></i></span><span class="el-rate__text" style="color:#ff9900;">3</span></div></div></li><li data-v-2d813be8><h3 class="doc-title" data-v-2d813be8><a href="/document/a1ba00c912dbf85d" target="_blank" class="el-link el-link--primary" data-v-2d813be8><img src="/static/images/pdf_24.png" alt="pdf文档" data-v-2d813be8> <span data-v-2d813be8>Scrapy 2.9 Documentation</span></a></h3> <div class="doc-desc" data-v-2d813be8>try selecting elements using CSS with the response object: >>> response.css("title") [<Selector <mark>query</mark>='descendant-or-self::title' data='<title>Quotes to Scrape '>] The result of running response ['Quotes to Scrape'] There are two things to note here: one is that we’ve added ::text to the CSS query, to mean we want to select only the text elements directly insideelement. If we don’t specify Scrapy selectors also support using XPath expressions: >>> response.xpath("//title") [<Selector <mark>query</mark>='//title' data='<title>Quotes to Scrape '>] >>> response.xpath("//title/text()").get() 'Quotes0 码力 | 409 页 | 1.70 MB | 1 年前3- Scrapy 2.1 DocumentationDocumentation, Release 2.1.0 There are two things to note here: one is that we’ve added ::text to the CSS query, to mean we want to select only the text elements directly inside
element. If we don’t specify ')]" data='<div class="quote" itemscope itemtype...'>, ...] Each of the selectors returned by the <mark>query</mark> above allows us to run further queries over their sub-elements. Let’s assign the first selector to follow_all(pagination_links, self.parse) def parse_author(self, response): def extract_with_css(<mark>query</mark>): return response.css(<mark>query</mark>).get(default='').strip() yield { 'name': extract_with_css('h3.author-title::text')</div> <div class="doc-info" data-v-2d813be8><span data-v-2d813be8>0 码力 | 342 页 | 1.32 MB <span class="hidden-xs-only" data-v-2d813be8>| 1 年前</span></span> <div role="slider" aria-valuenow="3" aria-valuetext="3" aria-valuemin="0" aria-valuemax="5" tabindex="0" class="el-rate float-right" data-v-2d813be8><span class="el-rate__item" style="cursor:auto;"><i class="el-rate__icon el-icon-star-on" style="color:#F7BA2A;"><!----></i></span><span class="el-rate__item" style="cursor:auto;"><i class="el-rate__icon el-icon-star-on" style="color:#F7BA2A;"><!----></i></span><span class="el-rate__item" style="cursor:auto;"><i class="el-rate__icon el-icon-star-on" style="color:#F7BA2A;"><!----></i></span><span class="el-rate__item" style="cursor:auto;"><i class="el-rate__icon el-icon-star-on" style="color:#EFF2F7;"><!----></i></span><span class="el-rate__item" style="cursor:auto;"><i class="el-rate__icon el-icon-star-on" style="color:#EFF2F7;"><!----></i></span><span class="el-rate__text" style="color:#ff9900;">3</span></div></div></li><li data-v-2d813be8><h3 class="doc-title" data-v-2d813be8><a href="/document/d761ff761dd36b3f" target="_blank" class="el-link el-link--primary" data-v-2d813be8><img src="/static/images/pdf_24.png" alt="pdf文档" data-v-2d813be8> <span data-v-2d813be8>Scrapy 2.2 Documentation</span></a></h3> <div class="doc-desc" data-v-2d813be8>Documentation, Release 2.2.1 There are two things to note here: one is that we’ve added ::text to the CSS <mark>query</mark>, to mean we want to select only the text elements directly inside <title> element. If we don’t specify ')]" data='<div class="quote" itemscope itemtype...'>, ...] Each of the selectors returned by the <mark>query</mark> above allows us to run further queries over their sub-elements. Let’s assign the first selector to follow_all(pagination_links, self.parse) def parse_author(self, response): def extract_with_css(<mark>query</mark>): return response.css(<mark>query</mark>).get(default='').strip() yield { 'name': extract_with_css('h3.author-title::text')</div> <div class="doc-info" data-v-2d813be8><span data-v-2d813be8>0 码力 | 348 页 | 1.35 MB <span class="hidden-xs-only" data-v-2d813be8>| 1 年前</span></span> <div role="slider" aria-valuenow="3" aria-valuetext="3" aria-valuemin="0" aria-valuemax="5" tabindex="0" class="el-rate float-right" data-v-2d813be8><span class="el-rate__item" style="cursor:auto;"><i class="el-rate__icon el-icon-star-on" style="color:#F7BA2A;"><!----></i></span><span class="el-rate__item" style="cursor:auto;"><i class="el-rate__icon el-icon-star-on" style="color:#F7BA2A;"><!----></i></span><span class="el-rate__item" style="cursor:auto;"><i class="el-rate__icon el-icon-star-on" style="color:#F7BA2A;"><!----></i></span><span class="el-rate__item" style="cursor:auto;"><i class="el-rate__icon el-icon-star-on" style="color:#EFF2F7;"><!----></i></span><span class="el-rate__item" style="cursor:auto;"><i class="el-rate__icon el-icon-star-on" style="color:#EFF2F7;"><!----></i></span><span class="el-rate__text" style="color:#ff9900;">3</span></div></div></li><li data-v-2d813be8><h3 class="doc-title" data-v-2d813be8><a href="/document/1bbcc03cc66a10ea" target="_blank" class="el-link el-link--primary" data-v-2d813be8><img src="/static/images/pdf_24.png" alt="pdf文档" data-v-2d813be8> <span data-v-2d813be8>Scrapy 2.4 Documentation</span></a></h3> <div class="doc-desc" data-v-2d813be8>['Quotes to Scrape'] There are two things to note here: one is that we’ve added ::text to the CSS <mark>query</mark>, to mean we want to select only the text elements directly inside <title> element. If we don’t specify ')]" data='<div class="quote" itemscope itemtype...'>, ...] Each of the selectors returned by the <mark>query</mark> above allows us to run further queries over their sub-elements. Let’s assign the first selector to follow_all(pagination_links, self.parse) def parse_author(self, response): def extract_with_css(<mark>query</mark>): return response.css(<mark>query</mark>).get(default='').strip() yield { 'name': extract_with_css('h3.author-title::text')</div> <div class="doc-info" data-v-2d813be8><span data-v-2d813be8>0 码力 | 354 页 | 1.39 MB <span class="hidden-xs-only" data-v-2d813be8>| 1 年前</span></span> <div role="slider" aria-valuenow="3" aria-valuetext="3" aria-valuemin="0" aria-valuemax="5" tabindex="0" class="el-rate float-right" data-v-2d813be8><span class="el-rate__item" style="cursor:auto;"><i class="el-rate__icon el-icon-star-on" style="color:#F7BA2A;"><!----></i></span><span class="el-rate__item" style="cursor:auto;"><i class="el-rate__icon el-icon-star-on" style="color:#F7BA2A;"><!----></i></span><span class="el-rate__item" style="cursor:auto;"><i class="el-rate__icon el-icon-star-on" style="color:#F7BA2A;"><!----></i></span><span class="el-rate__item" style="cursor:auto;"><i class="el-rate__icon el-icon-star-on" style="color:#EFF2F7;"><!----></i></span><span class="el-rate__item" style="cursor:auto;"><i class="el-rate__icon el-icon-star-on" style="color:#EFF2F7;"><!----></i></span><span class="el-rate__text" style="color:#ff9900;">3</span></div></div></li><li data-v-2d813be8><h3 class="doc-title" data-v-2d813be8><a href="/document/9647a72e4fcb35be" target="_blank" class="el-link el-link--primary" data-v-2d813be8><img src="/static/images/pdf_24.png" alt="pdf文档" data-v-2d813be8> <span data-v-2d813be8>Scrapy 2.3 Documentation</span></a></h3> <div class="doc-desc" data-v-2d813be8>['Quotes to Scrape'] There are two things to note here: one is that we’ve added ::text to the CSS <mark>query</mark>, to mean we want to select only the text elements directly inside <title> element. If we don’t specify ')]" data='<div class="quote" itemscope itemtype...'>, ...] Each of the selectors returned by the <mark>query</mark> above allows us to run further queries over their sub-elements. Let’s assign the first selector to follow_all(pagination_links, self.parse) def parse_author(self, response): def extract_with_css(<mark>query</mark>): return response.css(<mark>query</mark>).get(default='').strip() yield { 'name': extract_with_css('h3.author-title::text')</div> <div class="doc-info" data-v-2d813be8><span data-v-2d813be8>0 码力 | 352 页 | 1.36 MB <span class="hidden-xs-only" data-v-2d813be8>| 1 年前</span></span> <div role="slider" aria-valuenow="3" aria-valuetext="3" aria-valuemin="0" aria-valuemax="5" tabindex="0" class="el-rate float-right" data-v-2d813be8><span class="el-rate__item" style="cursor:auto;"><i class="el-rate__icon el-icon-star-on" style="color:#F7BA2A;"><!----></i></span><span class="el-rate__item" style="cursor:auto;"><i class="el-rate__icon el-icon-star-on" style="color:#F7BA2A;"><!----></i></span><span class="el-rate__item" style="cursor:auto;"><i class="el-rate__icon el-icon-star-on" style="color:#F7BA2A;"><!----></i></span><span class="el-rate__item" style="cursor:auto;"><i class="el-rate__icon el-icon-star-on" style="color:#EFF2F7;"><!----></i></span><span class="el-rate__item" style="cursor:auto;"><i class="el-rate__icon el-icon-star-on" style="color:#EFF2F7;"><!----></i></span><span class="el-rate__text" style="color:#ff9900;">3</span></div></div></li><li data-v-2d813be8><h3 class="doc-title" data-v-2d813be8><a href="/document/6ae691573343f973" target="_blank" class="el-link el-link--primary" data-v-2d813be8><img src="/static/images/pdf_24.png" alt="pdf文档" data-v-2d813be8> <span data-v-2d813be8>Scrapy 2.11.1 Documentation</span></a></h3> <div class="doc-desc" data-v-2d813be8>try selecting elements using CSS with the response object: >>> response.css("title") [<Selector <mark>query</mark>='descendant-or-self::title' data='<title>Quotes to Scrape '>] The result of running response ['Quotes to Scrape'] There are two things to note here: one is that we’ve added ::text to the CSS query, to mean we want to select only the text elements directly insideelement. If we don’t specify Scrapy selectors also support using XPath expressions: >>> response.xpath("//title") [<Selector <mark>query</mark>='//title' data='<title>Quotes to Scrape '>] >>> response.xpath("//title/text()").get() 'Quotes0 码力 | 425 页 | 1.76 MB | 1 年前3 - Scrapy 2.11 Documentationtry selecting elements using CSS with the response object: >>> response.css("title") [
query='descendant-or-self::title' data=' Quotes to Scrape '>] The result of running response ['Quotes to Scrape'] There are two things to note here: one is that we’ve added ::text to the CSS query, to mean we want to select only the text elements directly insideelement. If we don’t specify Scrapy selectors also support using XPath expressions: >>> response.xpath("//title") [<Selector <mark>query</mark>='//title' data='<title>Quotes to Scrape '>] >>> response.xpath("//title/text()").get() 'Quotes0 码力 | 425 页 | 1.76 MB | 1 年前3
共 62 条
- 1
- 2
- 3
- 4
- 5
- 6
- 7