Scrapy运行项目时出错：Scrapy – no active project，Unknown command: crawl

摘要: Scrapy运行项目时出错： Scrapy 1.1.2 - no active project

Unknown command: crawl

Use "scrapy" to see available commands

【问题】

通过Scrapy创建好了项目：

root@ubuntu:~/PythonProject#scrapy startproject tutorial

运行项目，结果出错：

root@ubuntu:~/PythonProject# scrapy crawl dmoz -o items.json
Scrapy 1.1.2 - 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：

root@ubuntu:~/PythonProject/tutorial# scrapy crawl dmoz -o items.json
2016-09-07 23:17:41 [scrapy] INFO: Scrapy 1.1.2 started (bot: tutorial)
2016-09-07 23:17:41 [scrapy] INFO: Overridden settings: {'NEWSPIDER_MODULE': 'tutorial.spiders', 'FEED_URI': 'items.json', 'SPIDER_MODULES': ['tutorial.spiders'], 'BOT_NAME': 'tutorial', 'ROBOTSTXT_OBEY': True, 'FEED_FORMAT': 'json'}
2016-09-07 23:17:41 [scrapy] INFO: Enabled extensions:
['scrapy.extensions.feedexport.FeedExporter',
'scrapy.extensions.logstats.LogStats',
'scrapy.extensions.telnet.TelnetConsole',
'scrapy.extensions.corestats.CoreStats']
2016-09-07 23:17:41 [scrapy] INFO: Enabled downloader middlewares:
['scrapy.downloadermiddlewares.robotstxt.RobotsTxtMiddleware',
'scrapy.downloadermiddlewares.httpauth.HttpAuthMiddleware',
'scrapy.downloadermiddlewares.downloadtimeout.DownloadTimeoutMiddleware',
'scrapy.downloadermiddlewares.useragent.UserAgentMiddleware',
'scrapy.downloadermiddlewares.retry.RetryMiddleware',
'scrapy.downloadermiddlewares.defaultheaders.DefaultHeadersMiddleware',
'scrapy.downloadermiddlewares.redirect.MetaRefreshMiddleware',
'scrapy.downloadermiddlewares.httpcompression.HttpCompressionMiddleware',
'scrapy.downloadermiddlewares.redirect.RedirectMiddleware',
'scrapy.downloadermiddlewares.cookies.CookiesMiddleware',
'scrapy.downloadermiddlewares.chunked.ChunkedTransferMiddleware',
'scrapy.downloadermiddlewares.stats.DownloaderStats']
2016-09-07 23:17:42 [scrapy] INFO: Enabled spider middlewares:
['scrapy.spidermiddlewares.httperror.HttpErrorMiddleware',
'scrapy.spidermiddlewares.offsite.OffsiteMiddleware',
'scrapy.spidermiddlewares.referer.RefererMiddleware',
'scrapy.spidermiddlewares.urllength.UrlLengthMiddleware',
'scrapy.spidermiddlewares.depth.DepthMiddleware']
2016-09-07 23:17:42 [scrapy] INFO: Enabled item pipelines:
[]
2016-09-07 23:17:42 [scrapy] INFO: Spider opened
2016-09-07 23:17:42 [scrapy] INFO: Crawled 0 pages (at 0 pages/min), scraped 0 items (at 0 items/min)
2016-09-07 23:17:42 [scrapy] DEBUG: Telnet console listening on 127.0.0.1:6023
2016-09-07 23:17:42 [scrapy] DEBUG: Crawled (200) <GET http://www.dmoz.org/robots.txt> (referer: None)
2016-09-07 23:17:43 [scrapy] DEBUG: Crawled (200) <GET http://www.dmoz.org/Computers/Programming/Languages/Python/Books/> (referer: None)
2016-09-07 23:17:43 [scrapy] INFO: Closing spider (finished)
2016-09-07 23:17:43 [scrapy] INFO: Dumping Scrapy stats:
{'downloader/request_bytes': 475,
'downloader/request_count': 2,
'downloader/request_method_count/GET': 2,
'downloader/response_bytes': 10691,
'downloader/response_count': 2,
'downloader/response_status_count/2
3ff0
00': 2,
'finish_reason': 'finished',
'finish_time': datetime.datetime(2016, 9, 7, 15, 17, 43, 596226),
'log_count/DEBUG': 3,
'log_count/INFO': 7,
'response_received_count': 2,
'scheduler/dequeued': 1,
'scheduler/dequeued/memory': 1,
'scheduler/enqueued': 1,
'scheduler/enqueued/memory': 1,
'start_time': datetime.datetime(2016, 9, 7, 15, 17, 42, 7203)}
2016-09-07 23:17:43 [scrapy] 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。