Scrapy 2.11.1 Documentationexpressions: >>> response.css("title::text").re(r"Quotes.*") ['Quotes to Scrape'] >>> response.css("title::text").re(r"Q\w+") ['Quotes'] >>> response.css("title::text").re(r"(\w+) to (\w+)") ['Quotes', 'Scrape'] Example: –cbkwargs=’{“foo” : “bar”}’ • --pipelines: process items through pipelines • --rules or -r: use CrawlSpider rules to discover the callback (i.e. spider method) to use for parsing the response Rule(LinkExtractor(allow=(r"category\.php",), deny=(r"subsection\.php",))), # Extract links matching 'item.php' and parse them with the spider's method parse_ ˓→item Rule(LinkExtractor(allow=(r"item\.php",)),0 码力 | 425 页 | 1.79 MB | 1 年前3
Scrapy 2.6 Documentationexpressions: >>> response.css('title::text').re(r'Quotes.*') ['Quotes to Scrape'] >>> response.css('title::text').re(r'Q\w+') ['Quotes'] >>> response.css('title::text').re(r'(\w+) to (\w+)') ['Quotes', 'Scrape'] Scrapy Documentation, Release 2.6.3 • --pipelines: process items through pipelines • --rules or -r: use CrawlSpider rules to discover the callback (i.e. spider method) to use for parsing the response %s', response.url) item = scrapy.Item() item['id'] = response.xpath('//td[@id="item_id"]/text()').re(r'ID: (\d+)') item['name'] = response.xpath('//td[@id="item_name"]/text()').get() item['description']0 码力 | 384 页 | 1.63 MB | 1 年前3
Scrapy 2.11.1 Documentationexpressions: >>> response.css("title::text").re(r"Quotes.*") ['Quotes to Scrape'] >>> response.css("title::text").re(r"Q\w+") ['Quotes'] >>> response.css("title::text").re(r"(\w+) to (\w+)") ['Quotes', 'Scrape'] Example: –cbkwargs=’{“foo” : “bar”}’ • --pipelines: process items through pipelines • --rules or -r: use CrawlSpider rules to discover the callback (i.e. spider method) to use for parsing the response Rule(LinkExtractor(allow=(r"category\.php",), deny=(r"subsection\.php",))), # Extract links matching 'item.php' and parse them with the spider's method parse_ ˓→item Rule(LinkExtractor(allow=(r"item\.php",)),0 码力 | 425 页 | 1.76 MB | 1 年前3
Scrapy 2.11 Documentationexpressions: >>> response.css("title::text").re(r"Quotes.*") ['Quotes to Scrape'] >>> response.css("title::text").re(r"Q\w+") ['Quotes'] >>> response.css("title::text").re(r"(\w+) to (\w+)") ['Quotes', 'Scrape'] Example: –cbkwargs=’{“foo” : “bar”}’ • --pipelines: process items through pipelines • --rules or -r: use CrawlSpider rules to discover the callback (i.e. spider method) to use for parsing the response Rule(LinkExtractor(allow=(r"category\.php",), deny=(r"subsection\.php",))), # Extract links matching 'item.php' and parse them with the spider's method parse_ ˓→item Rule(LinkExtractor(allow=(r"item\.php",)),0 码力 | 425 页 | 1.76 MB | 1 年前3
Scrapy 2.10 Documentationexpressions: >>> response.css("title::text").re(r"Quotes.*") ['Quotes to Scrape'] >>> response.css("title::text").re(r"Q\w+") ['Quotes'] >>> response.css("title::text").re(r"(\w+) to (\w+)") ['Quotes', 'Scrape'] Example: –cbkwargs=’{“foo” : “bar”}’ • --pipelines: process items through pipelines • --rules or -r: use CrawlSpider rules to discover the callback (i.e. spider method) to use for parsing the response Rule(LinkExtractor(allow=(r"category\.php",), deny=(r"subsection\.php",))), # Extract links matching 'item.php' and parse them with the spider's method parse_ ˓→item Rule(LinkExtractor(allow=(r"item\.php",)),0 码力 | 419 页 | 1.73 MB | 1 年前3
Scrapy 2.9 Documentationexpressions: >>> response.css("title::text").re(r"Quotes.*") ['Quotes to Scrape'] >>> response.css("title::text").re(r"Q\w+") ['Quotes'] >>> response.css("title::text").re(r"(\w+) to (\w+)") ['Quotes', 'Scrape'] Example: –cbkwargs=’{“foo” : “bar”}’ • --pipelines: process items through pipelines • --rules or -r: use CrawlSpider rules to discover the callback (i.e. spider method) to use for parsing the response Rule(LinkExtractor(allow=(r"category\.php",), deny=(r"subsection\.php",))), # Extract links matching 'item.php' and parse them with the spider's method parse_ ˓→item Rule(LinkExtractor(allow=(r"item\.php",)),0 码力 | 409 页 | 1.70 MB | 1 年前3
Scrapy 2.7 Documentationexpressions: >>> response.css('title::text').re(r'Quotes.*') ['Quotes to Scrape'] >>> response.css('title::text').re(r'Q\w+') ['Quotes'] >>> response.css('title::text').re(r'(\w+) to (\w+)') ['Quotes', 'Scrape'] Example: –cbkwargs=’{“foo” : “bar”}’ • --pipelines: process items through pipelines • --rules or -r: use CrawlSpider rules to discover the callback (i.e. spider method) to use for parsing the response %s', response.url) item = scrapy.Item() item['id'] = response.xpath('//td[@id="item_id"]/text()').re(r'ID: (\d+)') item['name'] = response.xpath('//td[@id="item_name"]/text()').get() item['description']0 码力 | 401 页 | 1.67 MB | 1 年前3
Scrapy 2.8 Documentationexpressions: >>> response.css('title::text').re(r'Quotes.*') ['Quotes to Scrape'] >>> response.css('title::text').re(r'Q\w+') ['Quotes'] >>> response.css('title::text').re(r'(\w+) to (\w+)') ['Quotes', 'Scrape'] Example: –cbkwargs=’{“foo” : “bar”}’ • --pipelines: process items through pipelines • --rules or -r: use CrawlSpider rules to discover the callback (i.e. spider method) to use for parsing the response %s', response.url) item = scrapy.Item() item['id'] = response.xpath('//td[@id="item_id"]/text()').re(r'ID: (\d+)') item['name'] = response.xpath('//td[@id="item_name"]/text()').get() item['description']0 码力 | 405 页 | 1.69 MB | 1 年前3
Scrapy 2.11 Documentation[https://stackoverflow.com/tags/scrapy]. Ask or search questions in the Scrapy subreddit [https://www.reddit.com/r/scrapy/]. Search for questions on the archives of the scrapy-users mailing list [https://groups.google rammers], as well as the suggested resources in the learnpython-subreddit [https://www.reddit.com/r/learnpython/wiki/index#wiki_new_to_python.3F]. Creating a project Before you start scraping, you will html]: >>> response.css("title::text").re(r"Quotes.*") ['Quotes to Scrape'] >>> response.css("title::text").re(r"Q\w+") ['Quotes'] >>> response.css("title::text").re(r"(\w+) to (\w+)") ['Quotes', 'Scrape']0 码力 | 528 页 | 706.01 KB | 1 年前3
Scrapy 2.11.1 Documentation[https://stackoverflow.com/tags/scrapy]. Ask or search questions in the Scrapy subreddit [https://www.reddit.com/r/scrapy/]. Search for questions on the archives of the scrapy-users mailing list [https://groups.google rammers], as well as the suggested resources in the learnpython-subreddit [https://www.reddit.com/r/learnpython/wiki/index#wiki_new_to_python.3F]. Creating a project Before you start scraping, you will html]: >>> response.css("title::text").re(r"Quotes.*") ['Quotes to Scrape'] >>> response.css("title::text").re(r"Q\w+") ['Quotes'] >>> response.css("title::text").re(r"(\w+) to (\w+)") ['Quotes', 'Scrape']0 码力 | 528 页 | 706.01 KB | 1 年前3
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