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Scrapy运行项目时出错：Scrapy 0.16.2 – no active project，Unknown command: crawl，Use "scrapy" to see available commands

python学习网 2017-12-25 16:19:02

【问题】

通过Scrapy创建好了项目：

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E:\Dev_Root\python\Scrapy>scrapy startproject songtaste

运行项目，结果出错：

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E:\Dev_Root\python\Scrapy>scrapy crawl songtaste -t json -o h1user.json
Scrapy 0.16.2 - no active project
 
Unknown command: crawl
 
Use "scrapy" to see available commands

【解决过程】

1.参考：

Trying to get Scrapy into a project to run Crawl command

然后才知道，原来是需要切换到对应的项目所在文件夹，再运行crawl，才可以的。

2.所以去，切换到项目所在目录songtaste子文件夹中，再运行，就可以了：

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E:\Dev_Root\python\Scrapy>cd songtaste
 
E:\Dev_Root\python\Scrapy\songtaste>scrapy crawl songtaste -t json -o h1user.json
2012-11-12 22:39:13+0800 [scrapy] INFO: Scrapy 0.16.2 started (bot: songtaste)
2012-11-12 22:39:13+0800 [scrapy] DEBUG: Enabled extensions: FeedExporter, LogStats, TelnetConsole, CloseSpider, WebServ
ice, CoreStats, SpiderState
2012-11-12 22:39:14+0800 [scrapy] DEBUG: Enabled downloader middlewares: HttpAuthMiddleware, DownloadTimeoutMiddleware,
UserAgentMiddleware, RetryMiddleware, DefaultHeadersMiddleware, RedirectMiddleware, CookiesMiddleware, HttpCompressionMi
ddleware, ChunkedTransferMiddleware, DownloaderStats
2012-11-12 22:39:14+0800 [scrapy] DEBUG: Enabled spider middlewares: HttpErrorMiddleware, OffsiteMiddleware, RefererMidd
leware, UrlLengthMiddleware, DepthMiddleware
2012-11-12 22:39:14+0800 [scrapy] DEBUG: Enabled item pipelines:
2012-11-12 22:39:14+0800 [songtaste] INFO: Spider opened
2012-11-12 22:39:14+0800 [songtaste] INFO: Crawled 0 pages (at 0 pages/min), scraped 0 items (at 0 items/min)
2012-11-12 22:39:14+0800 [scrapy] DEBUG: Telnet console listening on 0.0.0.0:6023
2012-11-12 22:39:14+0800 [scrapy] DEBUG: Web service listening on 0.0.0.0:6080
2012-11-12 22:39:14+0800 [songtaste] DEBUG: Crawled (200) <GET http://www.songtaste.com/user/351979/> (referer: None)
2012-11-12 22:39:14+0800 [songtaste] DEBUG: Scraped from <200 http://www.songtaste.com/user/351979/>
        {'h1user': [u'crifan']}
2012-11-12 22:39:14+0800 [songtaste] INFO: Closing spider (finished)
2012-11-12 22:39:14+0800 [songtaste] INFO: Stored json feed (1 items) in: h1user.json
2012-11-12 22:39:14+0800 [songtaste] INFO: Dumping Scrapy stats:
        {'downloader/request_bytes': 235,
         'downloader/request_count': 1,
         'downloader/request_method_count/GET': 1,
         'downloader/response_bytes': 11058,
         'downloader/response_count': 1,
         'downloader/response_status_count/200': 1,
         'finish_reason': 'finished',
         'finish_time': datetime.datetime(2012, 11, 12, 14, 39, 14, 431000),
         'item_scraped_count': 1,
         'log_count/DEBUG': 8,
         'log_count/INFO': 5,
         'response_received_count': 1,
         'scheduler/dequeued': 1,
         'scheduler/dequeued/memory': 1,
         'scheduler/enqueued': 1,
         'scheduler/enqueued/memory': 1,
         'start_time': datetime.datetime(2012, 11, 12, 14, 39, 14, 275000)}
2012-11-12 22:39:14+0800 [songtaste] INFO: Spider closed (finished)

 

【总结】

虽然此错误，很低级，但是，由于新接触Scrapy，由于不太熟悉，所以还是很容易犯的。

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