Scrapy 0.24 Documentationby the CSS expression given as argument. • extract(): returns a unicode string with the selected data. • re(): returns a list of unicode strings extracted by applying the regular expression given as argument regular expressions. However, unlike using .xpath() or .css() methods, .re() method returns a list of unicode strings. So you can’t construct nested .re() calls. Here’s an example used to extract images names HtmlResponse or XmlResponse object that will be used for selecting and extracting data. text is a unicode string or utf-8 encoded text for cases when a response isn’t available. Using text and response together0 码力 | 222 页 | 988.92 KB | 1 年前3
Scrapy 0.9 Documentationexpression given as argument. • extract(): returns a unicode string with the data selected by the XPath selector. • re(): returns a list unicode strings extracted by applying the regular expression given is a string containing the XPath to apply re(regex) Apply the given regex and return a list of unicode strings with the matches. regex can be either a compiled regular expression or a string which will sion using re.compile(regex) extract() Return a unicode string with the content of this XPathSelector object. extract_unquoted() Return a unicode string with the content of this XPathSelector without0 码力 | 156 页 | 764.56 KB | 1 年前3
Scrapy 0.9 Documentationxpath expression given as argument. extract(): returns a unicode string with the data selected by the XPath selector. re(): returns a list unicode strings extracted by applying the regular expression given is a string containing the XPath to apply re(regex) Apply the given regex and return a list of unicode strings with the matches. regex can be either a compiled regular expression or a string which will expression using re.compile(regex) extract() Return a unicode string with the content of this XPathSelector object. extract_unquoted() Return a unicode string with the content of this XPathSelector without0 码力 | 204 页 | 447.68 KB | 1 年前3
Scrapy 0.22 Documentationby the CSS expression given as argument. • extract(): returns a unicode string with the selected data. • re(): returns a list of unicode strings extracted by applying the regular expression given as argument regular expressions. However, unlike using .xpath() or .css() methods, .re() method returns a list of unicode strings. So you can’t construct nested .re() calls. Here’s an example used to extract images names HtmlResponse or XmlResponse object that will be used for selecting and extracting data. text is a unicode string or utf-8 encoded text for cases when a response isn’t available. Using text and response together0 码力 | 199 页 | 926.97 KB | 1 年前3
Scrapy 0.24 Documentationselected by the CSS expression given as argument. extract(): returns a unicode string with the selected data. re(): returns a list of unicode strings extracted by applying the regular expression given as argument regular expressions. However, unlike using .xpath() or .css() methods, .re() method returns a list of unicode strings. So you can’t construct nested .re() calls. Here’s an example used to extract images names HtmlResponse or XmlResponse object that will be used for selecting and extracting data. text is a unicode string or utf-8 encoded text for cases when a response isn’t available. Using text and response together0 码力 | 298 页 | 544.11 KB | 1 年前3
Scrapy 1.0 Documentationby the CSS expression given as argument. • extract(): returns a unicode string with the selected data. • re(): returns a list of unicode strings extracted by applying the regular expression given as argument regular expressions. However, unlike using . xpath() or .css() methods, .re() returns a list of unicode strings. So you can’t construct nested .re() calls. Here’s an example used to extract image names HtmlResponse or an XmlResponse object that will be used for selecting and extracting data. text is a unicode string or utf-8 encoded text for cases when a response isn’t available. Using text and response together0 码力 | 244 页 | 1.05 MB | 1 年前3
Scrapy 1.2 Documentationregular expressions. However, unlike using . xpath() or .css() methods, .re() returns a list of unicode strings. So you can’t construct nested .re() calls. Here’s an example used to extract image names HtmlResponse or an XmlResponse object that will be used for selecting and extracting data. text is a unicode string or utf-8 encoded text for cases when a response isn’t available. Using text and response together and return the matched nodes as a list of unicode strings. Percent encoded content is unquoted. re(regex) Apply the given regex and return a list of unicode strings with the matches. regex can be either0 码力 | 266 页 | 1.10 MB | 1 年前3
Scrapy 1.1 Documentationregular expressions. However, unlike using . xpath() or .css() methods, .re() returns a list of unicode strings. So you can’t construct nested .re() calls. Here’s an example used to extract image names HtmlResponse or an XmlResponse object that will be used for selecting and extracting data. text is a unicode string or utf-8 encoded text for cases when a response isn’t available. Using text and response together and return the matched nodes as a list of unicode strings. Percent encoded content is unquoted. re(regex) Apply the given regex and return a list of unicode strings with the matches. regex can be either0 码力 | 260 页 | 1.12 MB | 1 年前3
Scrapy 1.3 Documentationregular expressions. However, unlike using . xpath() or .css() methods, .re() returns a list of unicode strings. So you can’t construct nested .re() calls. Here’s an example used to extract image names HtmlResponse or an XmlResponse object that will be used for selecting and extracting data. text is a unicode string or utf-8 encoded text for cases when a response isn’t available. Using text and response together and return the matched nodes as a list of unicode strings. Percent encoded content is unquoted. re(regex) Apply the given regex and return a list of unicode strings with the matches. regex can be either0 码力 | 272 页 | 1.11 MB | 1 年前3
Scrapy 1.7 Documentationare instances of Selector class constructed by passing either TextResponse object or markup as an unicode string (in text argument). Usually there is no need to construct Scrapy selectors manually: response regular expressions. However, unlike using . xpath() or .css() methods, .re() returns a list of unicode strings. So you can’t construct nested .re() calls. Here’s an example used to extract image names HtmlResponse or an XmlResponse object that will be used for selecting and extracting data. text is a unicode string or utf-8 encoded text for cases when a response isn’t available. Using text and response together0 码力 | 306 页 | 1.23 MB | 1 年前3
共 62 条
- 1
- 2
- 3
- 4
- 5
- 6
- 7













