本文整理匯總了Python中scrapy.http.request.Request.meta["num"]方法的典型用法代碼示例。如果您正苦於以下問題：Python Request.meta["num"]方法的具體用法？Python Request.meta["num"]怎麽用？Python Request.meta["num"]使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類scrapy.http.request.Request的用法示例。
在下文中一共展示了Request.meta["num"]方法的3個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Python代碼示例。
示例1: parse_list_detail
# 需要導入模塊: from scrapy.http.request import Request [as 別名]
# 或者: from scrapy.http.request.Request import meta["num"] [as 別名]
def parse_list_detail(self, response):
hxs = HtmlXPathSelector(response)
shops = hxs.select('//li[@class="shopname"]/a/@href').extract()
for shop in shops:
url = base_url + shop
request = Request(url, callback=self.parse_detail)
request.meta["num"] = response.request.meta["num"]
request.meta["need_js"] = True
yield request示例2: parse_page
# 需要導入模塊: from scrapy.http.request import Request [as 別名]
# 或者: from scrapy.http.request.Request import meta["num"] [as 別名]
def parse_page(self, response):
hxs = HtmlXPathSelector(response)
max_num = 0
pages = hxs.select('//a[@class="PageLink"]/text()').extract()
for page in pages:
page = int(page)
if page > max_num:
max_num = page
# TODO list it
for i in range(1, max_num + 1):
url = response.request.url + "p%s" % str(i)
request = Request(url, callback=self.parse_list_detail)
request.meta["num"] = response.request.meta["num"]
print("yield request url %s" % url)
yield request示例3: parse
# 需要導入模塊: from scrapy.http.request import Request [as 別名]
# 或者: from scrapy.http.request.Request import meta["num"] [as 別名]
def parse(self, response):
for i in range(START, END):
request = Request(url=SPIDER_URLS[i], callback=self.parse_page)
request.meta["num"] = str(i)
yield request