class SouthwestSpider(scrapy.Spider): name = 'southwest' # allowed_domains = ['www.xxx.com'] # start_urls = ['https://www.southwest.com'] url = 'https://www.southwest.com/api/air-booking/v1/air-booking/page/air/booking/shopping' def start_requests(self): post_data = { "adultPass...
# 如果start_requests有数据且不需要等待 ifslot.start_requestsandnotself._needs_backout(spider): try: # 获取下一个种子请求 request = next(slot.start_requests) exceptStopIteration: slot.start_requests =None exceptException: slot.start_requests =None logger.error('Error while obtaining start requests...
>>pip install Scrapy --》出现错误ERROR: Caught exception reading instance data Traceback (most recent call last): 在settings.py中增加代码DOWNLOAD_HANDLERS = {'s3': None,} --》出现提示no active project cd到创建的scrapy工程即可 --》出现错误Error while obtaining start requests 在start_url中的ur...
你的start_requests根本不返回或生成，所以返回值总是NoneType。在这一行中，您将该过程移交给get_medians方法：
logger.error('Error while obtaining start requests', exc_info=True, extra={'spider': spider}) else: self.crawl(request, spider) if self.spider_is_idle(spider) and slot.close_if_idle: self._spider_idle(spider) _next_request_from_scheduler->_handle_downloader_output->enqueue_scrape->_scrap...
2024-04-28 02:08:32 [scrapy.core.engine] ERROR: Error while obtaining start requests Traceback (most recent call last): File "C:\Users\JJJhr\AppData\Local\Programs\Python\Python311\Lib\urllib\request.py", line 1348, in do_open h.request(req.get_method(), req.selector, req.data, ...
2016-12-09 18:41:39 [scrapy] ERROR: Error while obtaining start requests Traceback (most recent call last): File "/usr/local/lib/python3.4/site-packages/scrapy/core/engine.py", line 127, in _next_request request = next(slot.start_requests) File "/usr/local/lib/python3.4/site-packages...
Scrapy框架进阶之start_requests重写start_rquests重写scrapy中start_url是通过start_requests来进行处理的, 其实现代码如下 def start_requests(self): cls = self.__class__ if method_is_overridden(cls, Spider, 'make_requests_from_url'): warnings.warn( "Spider.make_requests_from_url method is ...
Scrapy:重写start_requests方法 导读 scrapy的start_requests方法重写,添加更多操作。 有时scrapy默认的start_requests无法满足我们的需求,例如分页爬取,那就要对它进行重写,添加更多操作。 代码语言:txt 复制 def start_requests(self): # 自定义功能 yield scrapy.Request(url="http://test.com", method="GET", ...
1.使用undetected_chromedriver在测试文件中测试cnblog博客园登录,没有问题,并且获取到了相关的cookie列表。 2. 但是将相同的登录代码逻辑写到scrapy框架中的 start_requests方法中,报错,报错内容如下图: 通过debug定位到出错的行为:broswer = uc.Chrome() 初始化Chrome出错,排除网络原因,重试了1天也没什么效果 请...