Scrapy 2.4 Documentationresponse.follow just returns a Request instance; you still have to yield this Request. You can also pass a selector to response.follow instead of a string; this selector should extract necessary at- tributes: it. Also, a common pattern is to build an item with data from more than one page, using a trick to pass additional data to the callbacks. 2.3.5 Using spider arguments You can provide command line arguments follow(next_page, self.parse) 2.3. Scrapy Tutorial 21 Scrapy Documentation, Release 2.4.1 If you pass the tag=humor argument to this spider, you’ll notice that it will only visit URLs from the humor tag0 码力 | 354 页 | 1.39 MB | 1 年前3
Scrapy 2.6 Documentationresponse.follow just returns a Request instance; you still have to yield this Request. You can also pass a selector to response.follow instead of a string; this selector should extract necessary attributes: it. Also, a common pattern is to build an item with data from more than one page, using a trick to pass additional data to the callbacks. 2.3.5 Using spider arguments You can provide command line arguments a::attr(href)').get() if next_page is not None: yield response.follow(next_page, self.parse) If you pass the tag=humor argument to this spider, you’ll notice that it will only visit URLs from the humor tag0 码力 | 384 页 | 1.63 MB | 1 年前3
Scrapy 2.5 Documentationresponse.follow just returns a Request instance; you still have to yield this Request. You can also pass a selector to response.follow instead of a string; this selector should extract necessary attributes: it. Also, a common pattern is to build an item with data from more than one page, using a trick to pass additional data to the callbacks. 2.3.5 Using spider arguments You can provide command line arguments a::attr(href)').get() if next_page is not None: yield response.follow(next_page, self.parse) If you pass the tag=humor argument to this spider, you’ll notice that it will only visit URLs from the humor tag0 码力 | 366 页 | 1.56 MB | 1 年前3
Scrapy 2.10 Documentationresponse.follow just returns a Request instance; you still have to yield this Request. You can also pass a selector to response.follow instead of a string; this selector should extract necessary attributes: it. Also, a common pattern is to build an item with data from more than one page, using a trick to pass additional data to the callbacks. 2.3. Scrapy Tutorial 21 Scrapy Documentation, Release 2.10.1 a::attr(href)").get() if next_page is not None: yield response.follow(next_page, self.parse) If you pass the tag=humor argument to this spider, you’ll notice that it will only visit URLs from the humor tag0 码力 | 419 页 | 1.73 MB | 1 年前3
Scrapy 2.7 Documentationresponse.follow just returns a Request instance; you still have to yield this Request. You can also pass a selector to response.follow instead of a string; this selector should extract necessary attributes: it. Also, a common pattern is to build an item with data from more than one page, using a trick to pass additional data to the callbacks. 2.3. Scrapy Tutorial 21 Scrapy Documentation, Release 2.7.1 2 a::attr(href)').get() if next_page is not None: yield response.follow(next_page, self.parse) If you pass the tag=humor argument to this spider, you’ll notice that it will only visit URLs from the humor tag0 码力 | 401 页 | 1.67 MB | 1 年前3
Scrapy 2.9 Documentationresponse.follow just returns a Request instance; you still have to yield this Request. You can also pass a selector to response.follow instead of a string; this selector should extract necessary attributes: it. Also, a common pattern is to build an item with data from more than one page, using a trick to pass additional data to the callbacks. 2.3. Scrapy Tutorial 21 Scrapy Documentation, Release 2.9.0 2 a::attr(href)").get() if next_page is not None: yield response.follow(next_page, self.parse) If you pass the tag=humor argument to this spider, you’ll notice that it will only visit URLs from the humor tag0 码力 | 409 页 | 1.70 MB | 1 年前3
Scrapy 2.8 Documentationresponse.follow just returns a Request instance; you still have to yield this Request. You can also pass a selector to response.follow instead of a string; this selector should extract necessary attributes: it. Also, a common pattern is to build an item with data from more than one page, using a trick to pass additional data to the callbacks. 2.3. Scrapy Tutorial 21 Scrapy Documentation, Release 2.8.0 2 a::attr(href)').get() if next_page is not None: yield response.follow(next_page, self.parse) If you pass the tag=humor argument to this spider, you’ll notice that it will only visit URLs from the humor tag0 码力 | 405 页 | 1.69 MB | 1 年前3
Scrapy 2.3 Documentationresponse.follow just returns a Request instance; you still have to yield this Request. You can also pass a selector to response.follow instead of a string; this selector should extract necessary at- tributes: it. Also, a common pattern is to build an item with data from more than one page, using a trick to pass additional data to the callbacks. 2.3. Scrapy Tutorial 21 Scrapy Documentation, Release 2.3.0 2 a::attr(href)').get() if next_page is not None: yield response.follow(next_page, self.parse) If you pass the tag=humor argument to this spider, you’ll notice that it will only visit URLs from the humor tag0 码力 | 352 页 | 1.36 MB | 1 年前3
Scrapy 1.7 Documentationresponse.follow just returns a Request instance; you still have to yield this Request. You can also pass a selector to response.follow instead of a string; this selector should extract necessary at- tributes: it. Also, a common pattern is to build an item with data from more than one page, using a trick to pass additional data to the callbacks. 2.3.5 Using spider arguments You can provide command line arguments a::attr(href)').get() if next_page is not None: yield response.follow(next_page, self.parse) If you pass the tag=humor argument to this spider, you’ll notice that it will only visit URLs from the humor tag0 码力 | 306 页 | 1.23 MB | 1 年前3
Scrapy 1.8 Documentationresponse.follow just returns a Request instance; you still have to yield this Request. You can also pass a selector to response.follow instead of a string; this selector should extract necessary attributes: it. Also, a common pattern is to build an item with data from more than one page, using a trick to pass additional data to the callbacks. 2.3.5 Using spider arguments You can provide command line arguments a::attr(href)').get() if next_page is not None: yield response.follow(next_page, self.parse) If you pass the tag=humor argument to this spider, you’ll notice that it will only visit URLs from the humor tag0 码力 | 335 页 | 1.44 MB | 1 年前3
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