w3school不知道为什么爬不出东西

[wawawawo]

不知道为什么我的爬不出东西来，json文件是0kb的。。其中spider里面我改了一点：from scrapy.spiders import Spider（因为报错说要用spiders）。还有log改logging了，然后运行的结果看不大懂，望大佬指正

D:\LZZZZB\w3school>scrapy crawl w3school
2017-06-21 22:33:03 [scrapy.utils.log] INFO: Scrapy 1.4.0 started (bot: w3school
)
2017-06-21 22:33:03 [scrapy.utils.log] INFO: Overridden settings: {‘BOT_NAME’: ‘
w3school’, ‘NEWSPIDER_MODULE’: ‘w3school.spiders’, ‘ROBOTSTXT_OBEY’: True, ‘SPID
ER_MODULES’: [‘w3school.spiders’]}
2017-06-21 22:33:03 [scrapy.middleware] INFO: Enabled extensions:
[‘scrapy.extensions.corestats.CoreStats’,
‘scrapy.extensions.telnet.TelnetConsole’,
‘scrapy.extensions.logstats.LogStats’]
2017-06-21 22:33:03 [scrapy.middleware] INFO: Enabled downloader middlewares:
[‘scrapy.downloadermiddlewares.robotstxt.RobotsTxtMiddleware’,
‘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’]
2017-06-21 22:33:03 [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’]
2017-06-21 22:33:03 [scrapy.middleware] INFO: Enabled item pipelines:
[‘w3school.pipelines.W3SchoolPipeline’]
2017-06-21 22:33:03 [scrapy.core.engine] INFO: Spider opened
2017-06-21 22:33:03 [scrapy.extensions.logstats] INFO: Crawled 0 pages (at 0 pag
es/min), scraped 0 items (at 0 items/min)
2017-06-21 22:33:03 [scrapy.extensions.telnet] DEBUG: Telnet console listening o
n 127.0.0.1:6023
2017-06-21 22:33:03 [scrapy.core.engine] INFO: Closing spider (finished)
2017-06-21 22:33:03 [scrapy.statscollectors] INFO: Dumping Scrapy stats:
{‘finish_reason’: ‘finished’,
‘finish_time’: datetime.datetime(2017, 6, 21, 14, 33, 3, 262577),
‘log_count/DEBUG’: 1,
‘log_count/INFO’: 7,
‘start_time’: datetime.datetime(2017, 6, 21, 14, 33, 3, 252576)}
2017-06-21 22:33:03 [scrapy.core.engine] INFO: Spider closed (finished)