Python में Web Scraping
Thomas Laetsch
Data Scientist, NYU
<xpath-to-element>/@attr-name
xpath = '//div[@id="uid"]/a/@href'
<css-to-element>::attr(attr-name)
css_locator = 'div#uid > a::attr(href)'
<p id="p-example"> Hello world! Try <a href="http://www.datacamp.com">DataCamp</a> today! </p>
text()
sel.xpath('//p[@id="p-example"]/text()').extract() # result: ['\n Hello world!\n Try ', ' today!\n']
sel.xpath('//p[@id="p-example"]/text()').extract()
# result: ['\n Hello world!\n Try ', ' today!\n']
sel.xpath('//p[@id="p-example"]//text()').extract() # result: ['\n Hello world!\n Try ', 'DataCamp', ' today!\n']
sel.xpath('//p[@id="p-example"]//text()').extract()
# result: ['\n Hello world!\n Try ', 'DataCamp', ' today!\n']
::text
sel.css('p#p-example::text').extract() # result: ['\n Hello world!\n Try ', ' today!\n']
sel.css('p#p-example::text').extract()
sel.css('p#p-example ::text').extract() # result: ['\n Hello world!\n Try ', 'DataCamp', ' today!\n']
sel.css('p#p-example ::text').extract()
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