 Scrapy 1.4 DocumentationExample: class YourSpider(XMLFeedSpider): namespaces = [('n', 'http://www.sitemaps.org/schemas/sitemap/0.9')] itertag = 'n:url' # ... Apart from these new attributes, this spider has the 'Date': ['Thu, 08 Dec 2016 16:21:19 GMT'], 'Server': ['snooserv'], 'Set-Cookie': ['loid=KqNLou0V9SKMX4qb4n; Domain=reddit.com; Max- Age=63071999; Path=/; expires=Sat, 08-Dec-2018 16:21:19 GMT; secure', self.file.close() def process_item(self, item, spider): line = json.dumps(dict(item)) + "\n" self.file.write(line) return item Note The purpose of JsonWriterPipeline is just to0 码力 | 394 页 | 589.10 KB | 1 年前3 Scrapy 1.4 DocumentationExample: class YourSpider(XMLFeedSpider): namespaces = [('n', 'http://www.sitemaps.org/schemas/sitemap/0.9')] itertag = 'n:url' # ... Apart from these new attributes, this spider has the 'Date': ['Thu, 08 Dec 2016 16:21:19 GMT'], 'Server': ['snooserv'], 'Set-Cookie': ['loid=KqNLou0V9SKMX4qb4n; Domain=reddit.com; Max- Age=63071999; Path=/; expires=Sat, 08-Dec-2018 16:21:19 GMT; secure', self.file.close() def process_item(self, item, spider): line = json.dumps(dict(item)) + "\n" self.file.write(line) return item Note The purpose of JsonWriterPipeline is just to0 码力 | 394 页 | 589.10 KB | 1 年前3
 Scrapy 0.24 Documentationin progress, full text, ASCII format. Asks for feedback. [author website, Gnosis Software, Inc.\n], 'link': [u'http://gnosis.cx/TPiP/'], 'title': [u'Text Processing in Python']} [dmoz] DEBUG: Python tutorial, DOM and SAX, new Pyxie open source XML processing library. [Prentice Hall PTR]\n'], 'link': [u'http://www.informit.com/store/product.aspx? isbn=0130211192'], 'title': [u'XML Example: class YourSpider(XMLFeedSpider): namespaces = [('n', 'http://www.sitemaps.org/schemas/sitemap/0.9')] itertag = 'n:url' # ... Apart from these new attributes, this spider has the0 码力 | 298 页 | 544.11 KB | 1 年前3 Scrapy 0.24 Documentationin progress, full text, ASCII format. Asks for feedback. [author website, Gnosis Software, Inc.\n], 'link': [u'http://gnosis.cx/TPiP/'], 'title': [u'Text Processing in Python']} [dmoz] DEBUG: Python tutorial, DOM and SAX, new Pyxie open source XML processing library. [Prentice Hall PTR]\n'], 'link': [u'http://www.informit.com/store/product.aspx? isbn=0130211192'], 'title': [u'XML Example: class YourSpider(XMLFeedSpider): namespaces = [('n', 'http://www.sitemaps.org/schemas/sitemap/0.9')] itertag = 'n:url' # ... Apart from these new attributes, this spider has the0 码力 | 298 页 | 544.11 KB | 1 年前3
 Scrapy 0.24 DocumentationBook in progress, full text, ASCII format. Asks for feedback. [author website, Gnosis Software, Inc.\n], 'link': [u'http://gnosis.cx/TPiP/'], 'title': [u'Text Processing in Python']} [dmoz] DEBUG: Scraped fast, Python tutorial, DOM and SAX, new Pyxie open source XML processing library. [Prentice Hall PTR]\n'], 'link': [u'http://www.informit.com/store/product.aspx?isbn=0130211192'], 'title': [u'XML Processing attribute. Example: class YourSpider(XMLFeedSpider): namespaces = [('n', 'http://www.sitemaps.org/schemas/sitemap/0.9')] itertag = 'n:url' # ... Apart from these new attributes, this spider has the following0 码力 | 222 页 | 988.92 KB | 1 年前3 Scrapy 0.24 DocumentationBook in progress, full text, ASCII format. Asks for feedback. [author website, Gnosis Software, Inc.\n], 'link': [u'http://gnosis.cx/TPiP/'], 'title': [u'Text Processing in Python']} [dmoz] DEBUG: Scraped fast, Python tutorial, DOM and SAX, new Pyxie open source XML processing library. [Prentice Hall PTR]\n'], 'link': [u'http://www.informit.com/store/product.aspx?isbn=0130211192'], 'title': [u'XML Processing attribute. Example: class YourSpider(XMLFeedSpider): namespaces = [('n', 'http://www.sitemaps.org/schemas/sitemap/0.9')] itertag = 'n:url' # ... Apart from these new attributes, this spider has the following0 码力 | 222 页 | 988.92 KB | 1 年前3
 Scrapy 2.2 DocumentationDocumentation, Release 2.2.1 class YourSpider(XMLFeedSpider): namespaces = [('n', 'http://www.sitemaps.org/schemas/sitemap/0.9')] itertag = 'n:url' # ... Apart from these new attributes, this spider has the following css('#images *::text').getall() ['\n ', 'Name: My image 1 ', '\n ', 'Name: My image 2 ', '\n ', 'Name: My image 3 ', '\n ', 'Name: My image 4 ', '\n ', 'Name: My image 5 ', '\n '] • foo::text returns no 'Date': ['Thu, 08 Dec 2016 16:21:19 GMT'], 'Server': ['snooserv'], 'Set-Cookie': ['loid=KqNLou0V9SKMX4qb4n; Domain=reddit.com; Max-Age=63071999; Path=/; ˓→ expires=Sat, 08-Dec-2018 16:21:19 GMT; secure',0 码力 | 348 页 | 1.35 MB | 1 年前3 Scrapy 2.2 DocumentationDocumentation, Release 2.2.1 class YourSpider(XMLFeedSpider): namespaces = [('n', 'http://www.sitemaps.org/schemas/sitemap/0.9')] itertag = 'n:url' # ... Apart from these new attributes, this spider has the following css('#images *::text').getall() ['\n ', 'Name: My image 1 ', '\n ', 'Name: My image 2 ', '\n ', 'Name: My image 3 ', '\n ', 'Name: My image 4 ', '\n ', 'Name: My image 5 ', '\n '] • foo::text returns no 'Date': ['Thu, 08 Dec 2016 16:21:19 GMT'], 'Server': ['snooserv'], 'Set-Cookie': ['loid=KqNLou0V9SKMX4qb4n; Domain=reddit.com; Max-Age=63071999; Path=/; ˓→ expires=Sat, 08-Dec-2018 16:21:19 GMT; secure',0 码力 | 348 页 | 1.35 MB | 1 年前3
 Scrapy 2.4 Documentationattribute. Example: class YourSpider(XMLFeedSpider): namespaces = [('n', 'http://www.sitemaps.org/schemas/sitemap/0.9')] itertag = 'n:url' # ... Apart from these new attributes, this spider has the following css('#images *::text').getall() ['\n ', 'Name: My image 1 ', '\n ', 'Name: My image 2 ', '\n ', 'Name: My image 3 ', '\n ', 'Name: My image 4 ', '\n ', 'Name: My image 5 ', '\n '] • foo::text returns no 'Date': ['Thu, 08 Dec 2016 16:21:19 GMT'], 'Server': ['snooserv'], 'Set-Cookie': ['loid=KqNLou0V9SKMX4qb4n; Domain=reddit.com; Max-Age=63071999; Path=/; ˓→ expires=Sat, 08-Dec-2018 16:21:19 GMT; secure',0 码力 | 354 页 | 1.39 MB | 1 年前3 Scrapy 2.4 Documentationattribute. Example: class YourSpider(XMLFeedSpider): namespaces = [('n', 'http://www.sitemaps.org/schemas/sitemap/0.9')] itertag = 'n:url' # ... Apart from these new attributes, this spider has the following css('#images *::text').getall() ['\n ', 'Name: My image 1 ', '\n ', 'Name: My image 2 ', '\n ', 'Name: My image 3 ', '\n ', 'Name: My image 4 ', '\n ', 'Name: My image 5 ', '\n '] • foo::text returns no 'Date': ['Thu, 08 Dec 2016 16:21:19 GMT'], 'Server': ['snooserv'], 'Set-Cookie': ['loid=KqNLou0V9SKMX4qb4n; Domain=reddit.com; Max-Age=63071999; Path=/; ˓→ expires=Sat, 08-Dec-2018 16:21:19 GMT; secure',0 码力 | 354 页 | 1.39 MB | 1 年前3
 Scrapy 2.3 Documentationattribute. Example: class YourSpider(XMLFeedSpider): namespaces = [('n', 'http://www.sitemaps.org/schemas/sitemap/0.9')] itertag = 'n:url' # ... Apart from these new attributes, this spider has the following current selector context: >>> response.css('#images *::text').getall() ['\n ', 'Name: My image 1 ', '\n ', 'Name: My image 2 ', '\n ', (continues on next page) 50 Chapter 3. Basic concepts Scrapy Documentation Release 2.3.0 (continued from previous page) 'Name: My image 3 ', '\n ', 'Name: My image 4 ', '\n ', 'Name: My image 5 ', '\n '] • foo::text returns no results if foo element exists, but contains0 码力 | 352 页 | 1.36 MB | 1 年前3 Scrapy 2.3 Documentationattribute. Example: class YourSpider(XMLFeedSpider): namespaces = [('n', 'http://www.sitemaps.org/schemas/sitemap/0.9')] itertag = 'n:url' # ... Apart from these new attributes, this spider has the following current selector context: >>> response.css('#images *::text').getall() ['\n ', 'Name: My image 1 ', '\n ', 'Name: My image 2 ', '\n ', (continues on next page) 50 Chapter 3. Basic concepts Scrapy Documentation Release 2.3.0 (continued from previous page) 'Name: My image 3 ', '\n ', 'Name: My image 4 ', '\n ', 'Name: My image 5 ', '\n '] • foo::text returns no results if foo element exists, but contains0 码力 | 352 页 | 1.36 MB | 1 年前3
 Scrapy 1.7 Documentationattribute. Example: class YourSpider(XMLFeedSpider): namespaces = [('n', 'http://www.sitemaps.org/schemas/sitemap/0.9')] itertag = 'n:url' # ... Apart from these new attributes, this spider has the following css('#images *::text').getall() ['\n ', 'Name: My image 1 ', '\n ', 'Name: My image 2 ', '\n ', 'Name: My image 3 ', '\n ', 'Name: My image 4 ', '\n ', 'Name: My image 5 ', '\n '] • foo::text returns no 'Date': ['Thu, 08 Dec 2016 16:21:19 GMT'], 'Server': ['snooserv'], 'Set-Cookie': ['loid=KqNLou0V9SKMX4qb4n; Domain=reddit.com; Max-Age=63071999; Path=/; ˓→ expires=Sat, 08-Dec-2018 16:21:19 GMT; secure',0 码力 | 306 页 | 1.23 MB | 1 年前3 Scrapy 1.7 Documentationattribute. Example: class YourSpider(XMLFeedSpider): namespaces = [('n', 'http://www.sitemaps.org/schemas/sitemap/0.9')] itertag = 'n:url' # ... Apart from these new attributes, this spider has the following css('#images *::text').getall() ['\n ', 'Name: My image 1 ', '\n ', 'Name: My image 2 ', '\n ', 'Name: My image 3 ', '\n ', 'Name: My image 4 ', '\n ', 'Name: My image 5 ', '\n '] • foo::text returns no 'Date': ['Thu, 08 Dec 2016 16:21:19 GMT'], 'Server': ['snooserv'], 'Set-Cookie': ['loid=KqNLou0V9SKMX4qb4n; Domain=reddit.com; Max-Age=63071999; Path=/; ˓→ expires=Sat, 08-Dec-2018 16:21:19 GMT; secure',0 码力 | 306 页 | 1.23 MB | 1 年前3
 Scrapy 1.8 Documentationattribute. Example: class YourSpider(XMLFeedSpider): namespaces = [('n', 'http://www.sitemaps.org/schemas/sitemap/0.9')] itertag = 'n:url' # ... Apart from these new attributes, this spider has the following css('#images *::text').getall() ['\n ', 'Name: My image 1 ', '\n ', 'Name: My image 2 ', '\n ', 'Name: My image 3 ', '\n ', 'Name: My image 4 ', '\n ', 'Name: My image 5 ', '\n '] • foo::text returns no 'Date': ['Thu, 08 Dec 2016 16:21:19 GMT'], 'Server': ['snooserv'], 'Set-Cookie': ['loid=KqNLou0V9SKMX4qb4n; Domain=reddit.com; Max-Age=63071999; Path=/;␣ ˓→expires=Sat, 08-Dec-2018 16:21:19 GMT; secure',0 码力 | 335 页 | 1.44 MB | 1 年前3 Scrapy 1.8 Documentationattribute. Example: class YourSpider(XMLFeedSpider): namespaces = [('n', 'http://www.sitemaps.org/schemas/sitemap/0.9')] itertag = 'n:url' # ... Apart from these new attributes, this spider has the following css('#images *::text').getall() ['\n ', 'Name: My image 1 ', '\n ', 'Name: My image 2 ', '\n ', 'Name: My image 3 ', '\n ', 'Name: My image 4 ', '\n ', 'Name: My image 5 ', '\n '] • foo::text returns no 'Date': ['Thu, 08 Dec 2016 16:21:19 GMT'], 'Server': ['snooserv'], 'Set-Cookie': ['loid=KqNLou0V9SKMX4qb4n; Domain=reddit.com; Max-Age=63071999; Path=/;␣ ˓→expires=Sat, 08-Dec-2018 16:21:19 GMT; secure',0 码力 | 335 页 | 1.44 MB | 1 年前3
 Scrapy 1.7 DocumentationExample: class YourSpider(XMLFeedSpider): namespaces = [('n', 'http://www.sitemaps.org/schemas/sitemap/0.9')] itertag = 'n:url' # ... Apart from these new attributes, this spider has the css('#images *::text').getall() ['\n ', 'Name: My image 1 ', '\n ', 'Name: My image 2 ', '\n ', 'Name: My image 3 ', '\n ', 'Name: My image 4 ', '\n ', 'Name: My image 5 ', '\n '] foo::text returns no 'Date': ['Thu, 08 Dec 2016 16:21:19 GMT'], 'Server': ['snooserv'], 'Set-Cookie': ['loid=KqNLou0V9SKMX4qb4n; Domain=reddit.com; Max- Age=63071999; Path=/; expires=Sat, 08-Dec-2018 16:21:19 GMT; secure',0 码力 | 391 页 | 598.79 KB | 1 年前3 Scrapy 1.7 DocumentationExample: class YourSpider(XMLFeedSpider): namespaces = [('n', 'http://www.sitemaps.org/schemas/sitemap/0.9')] itertag = 'n:url' # ... Apart from these new attributes, this spider has the css('#images *::text').getall() ['\n ', 'Name: My image 1 ', '\n ', 'Name: My image 2 ', '\n ', 'Name: My image 3 ', '\n ', 'Name: My image 4 ', '\n ', 'Name: My image 5 ', '\n '] foo::text returns no 'Date': ['Thu, 08 Dec 2016 16:21:19 GMT'], 'Server': ['snooserv'], 'Set-Cookie': ['loid=KqNLou0V9SKMX4qb4n; Domain=reddit.com; Max- Age=63071999; Path=/; expires=Sat, 08-Dec-2018 16:21:19 GMT; secure',0 码力 | 391 页 | 598.79 KB | 1 年前3
 Scrapy 1.6 Documentationattribute. Example: class YourSpider(XMLFeedSpider): namespaces = [('n', 'http://www.sitemaps.org/schemas/sitemap/0.9')] itertag = 'n:url' # ... Apart from these new attributes, this spider has the following css('#images *::text').getall() ['\n ', 'Name: My image 1 ', '\n ', 'Name: My image 2 ', '\n ', 'Name: My image 3 ', '\n ', 'Name: My image 4 ', '\n ', 'Name: My image 5 ', '\n '] • foo::text returns no 'Date': ['Thu, 08 Dec 2016 16:21:19 GMT'], 'Server': ['snooserv'], 'Set-Cookie': ['loid=KqNLou0V9SKMX4qb4n; Domain=reddit.com; Max-Age=63071999; Path=/; ˓→ expires=Sat, 08-Dec-2018 16:21:19 GMT; secure',0 码力 | 295 页 | 1.18 MB | 1 年前3 Scrapy 1.6 Documentationattribute. Example: class YourSpider(XMLFeedSpider): namespaces = [('n', 'http://www.sitemaps.org/schemas/sitemap/0.9')] itertag = 'n:url' # ... Apart from these new attributes, this spider has the following css('#images *::text').getall() ['\n ', 'Name: My image 1 ', '\n ', 'Name: My image 2 ', '\n ', 'Name: My image 3 ', '\n ', 'Name: My image 4 ', '\n ', 'Name: My image 5 ', '\n '] • foo::text returns no 'Date': ['Thu, 08 Dec 2016 16:21:19 GMT'], 'Server': ['snooserv'], 'Set-Cookie': ['loid=KqNLou0V9SKMX4qb4n; Domain=reddit.com; Max-Age=63071999; Path=/; ˓→ expires=Sat, 08-Dec-2018 16:21:19 GMT; secure',0 码力 | 295 页 | 1.18 MB | 1 年前3
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