为什么使用scrapy—redis提供的组件会报错 SCHEDULER_DUPEFFILTER_CLASS = “scrapy_redis.dupefil

网络 02-07 4944

(base) C:\Users\qwer\PycharmProjects\爬虫\第八章 scrapy框架\fbsPro\fbsPro\spiders>scrapy runspider fbs.py 2021-04-15 12:24:04 [scrapy.utils.log] INFO: Scrapy 2.4.1 started (bot: fbsPro) 2021-04-15 12:24:04 [scrapy.utils.log] INFO: Versions: lxml 4.6.1.0, libxml2 2.9.10, cssselect 1.1.0, parsel 1.5.2, w3lib 1.21.0, Twisted 21.2.0, Python 3.8.5 (default, Sep 3 2020, 21:29 :08) [MSC v.1916 64 bit (AMD64)], pyOpenSSL 19.1.0 (OpenSSL 1.1.1h 22 Sep 2020), cryptography 3.1.1, Platform Windows-10-10.0.19041-SP0 2021-04-15 12:24:04 [scrapy.utils.log] DEBUG: Using reactor: twisted.internet.selectreactor.SelectReactor 2021-04-15 12:24:04 [scrapy.crawler] INFO: Overridden settings: {‘BOT_NAME’: ‘fbsPro’, ‘CONCURRENT_REQUESTS’: 2, ‘NEWSPIDER_MODULE’: ‘fbsPro.spiders’, ‘SCHEDULER’: ‘scrapy_redis.scheduler.Scheduler’, ‘SPIDER_LOADER_WARN_ONLY’: True, ‘SPIDER_MODULES’: [‘fbsPro.spiders’], ‘USER_AGENT’: 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 ’ ‘(KHTML, like Gecko) Chrome/78.0.3904.108 Safari/537.36’} 2021-04-15 12:24:05 [scrapy.extensions.telnet] INFO: Telnet Password: 8b3128fb39ca699b 2021-04-15 12:24:05 [scrapy.middleware] INFO: Enabled extensions: [‘scrapy.extensions.corestats.CoreStats’, ‘scrapy.extensions.telnet.TelnetConsole’, ‘scrapy.extensions.logstats.LogStats’] 2021-04-15 12:24:05 [fbs] INFO: Reading start URLs from redis key ‘sunQueue’ (batch size: 2, encoding: utf-8 2021-04-15 12:24:07 [scrapy.middleware] INFO: Enabled downloader middlewares: [‘scrapy.downloadermiddlewares.httpauth.HttpAuthMiddleware’, ‘scrapy.downloadermiddlewares.downloadtimeout.DownloadTimeoutMiddleware’, ‘scrapy.downloadermiddlewares.defaultheaders.DefaultHeadersMiddleware’, ‘scrapy.downloadermiddlewares.useragent.UserAgentMiddleware’, ‘scrapy.downloadermiddlewares.retry.RetryMiddleware’, ‘scrapy.downloadermiddlewares.redirect.MetaRefreshMiddleware’, ‘scrapy.downloadermiddlewares.httpcompression.HttpCompressionMiddleware’, ‘scrapy.downloadermiddlewares.redirect.RedirectMiddleware’, ‘scrapy.downloadermiddlewares.cookies.CookiesMiddleware’, ‘scrapy.downloadermiddlewares.httpproxy.HttpProxyMiddleware’, ‘scrapy.downloadermiddlewares.stats.DownloaderStats’] 2021-04-15 12:24:07 [scrapy.middleware] INFO: Enabled spider middlewares: [‘scrapy.spidermiddlewares.httperror.HttpErrorMiddleware’, ‘scrapy.spidermiddlewares.offsite.OffsiteMiddleware’, ‘scrapy.spidermiddlewares.referer.RefererMiddleware’, ‘scrapy.spidermiddlewares.urllength.UrlLengthMiddleware’, ‘scrapy.spidermiddlewares.depth.DepthMiddleware’] 2021-04-15 12:24:07 [scrapy.middleware] INFO: Enabled item pipelines: [‘scrapy_redis.pipelines.RedisPipeline’] 2021-04-15 12:24:07 [scrapy.core.engine] INFO: Spider opened

从这里开始出错的

2021-04-15 12:24:07 [scrapy.core.engine] INFO: Closing spider (shutdown) 2021-04-15 12:24:07 [scrapy.core.engine] ERROR: Scraper close failure Traceback (most recent call last): File “E:\anaconda\lib\site-packages\scrapy\crawler.py”, line 89, in crawl yield self.engine.open_spider(self.spider, start_requests) AttributeError: type object ‘RFPDupeFilter’ has no attribute ‘from_spider’

During handling of the above exception, another exception occurred:

Traceback (most recent call last): File “E:\anaconda\lib\site-packages\twisted\internet\defer.py”, line 662, in _runCallbacks current.result = callback(current.result, *args, **kw) File “E:\anaconda\lib\site-packages\scrapy\core\engine.py”, line 325, in dfd.addBoth(lambda _: self.scraper.close_spider(spider)) File “E:\anaconda\lib\site-packages\scrapy\core\scraper.py”, line 86, in close_spider slot.closing = defer.Deferred() AttributeError: ‘NoneType’ object has no attribute ‘closing’ 2021-04-15 12:24:07 [scrapy.utils.signal] ERROR: Error caught on signal handler: <bound method CoreStats.spider_closed of <scrapy.extensions.corestats.CoreStats object at 0x000001A786B385 20>> Traceback (most recent call last): File “E:\anaconda\lib\site-packages\scrapy\crawler.py”, line 89, in crawl yield self.engine.open_spider(self.spider, start_requests) AttributeError: type object ‘RFPDupeFilter’ has no attribute ‘from_spider’

During handling of the above exception, another exception occurred:

Traceback (most recent call last): File “E:\anaconda\lib\site-packages\scrapy\utils\defer.py”, line 157, in maybeDeferred_coro result = f(*args, **kw) File “E:\anaconda\lib\site-packages\pydispatch\robustapply.py”, line 55, in robustApply return receiver(*arguments, **named) File “E:\anaconda\lib\site-packages\scrapy\extensions\corestats.py”, line 31, in spider_closed elapsed_time = finish_time - self.start_time TypeError: unsupported operand type(s) for -: ‘datetime.datetime’ and ‘NoneType’ 2021-04-15 12:24:07 [scrapy.statscollectors] INFO: Dumping Scrapy stats: {‘log_count/ERROR’: 2, ‘log_count/INFO’: 9} 2021-04-15 12:24:07 [scrapy.core.engine] INFO: Spider closed (shutdown) Unhandled error in Deferred: 2021-04-15 12:24:07 [twisted] CRITICAL: Unhandled error in Deferred:

Traceback (most recent call last): File “E:\anaconda\lib\site-packages\scrapy\crawler.py”, line 192, in crawl return self._crawl(crawler, *args, **kwargs) File “E:\anaconda\lib\site-packages\scrapy\crawler.py”, line 196, in _crawl d = crawler.crawl(*args, **kwargs) File “E:\anaconda\lib\site-packages\twisted\internet\defer.py”, line 1656, in unwindGenerator return _cancellableInlineCallbacks(gen) File “E:\anaconda\lib\site-packages\twisted\internet\defer.py”, line 1571, in _cancellableInlineCallbacks _inlineCallbacks(None, g, status) — — File “E:\anaconda\lib\site-packages\twisted\internet\defer.py”, line 1445, in _inlineCallbacks result = current_context.run(g.send, result) File “E:\anaconda\lib\site-packages\scrapy\crawler.py”, line 89, in crawl yield self.engine.open_spider(self.spider, start_requests) builtins.AttributeError: type object ‘RFPDupeFilter’ has no attribute ‘from_spider’

2021-04-15 12:24:07 [twisted] CRITICAL: Traceback (most recent call last): File “E:\anaconda\lib\site-packages\twisted\internet\defer.py”, line 1445, in _inlineCallbacks result = current_context.run(g.send, result) File “E:\anaconda\lib\site-packages\scrapy\crawler.py”, line 89, in crawl yield self.engine.open_spider(self.spider, start_requests) AttributeError: type object ‘RFPDupeFilter’ has no attribute ‘from_spider’