我的互联网连接是通过具有身份验证的代理，当我尝试运行 scraoy 库以制作更简单的示例时，例如：
scrapy shell http://stackoverflow.com
一切正常，直到您使用 XPath 选择器请求某些内容，响应是下一个：
>>> hxs.select('//title')
[<HtmlXPathSelector xpath='//title' data=u'<title>ERROR: Cache Access Denied</title'>]
或者，如果您尝试运行在项目中创建的任何蜘蛛，则会出现以下错误：
C:\Users\Victor\Desktop\test\test>scrapy crawl test
2012-08-11 17:38:02-0400 [scrapy] INFO: Scrapy 0.16.5 started (bot: test)
2012-08-11 17:38:02-0400 [scrapy] DEBUG: Enabled extensions: LogStats, TelnetCon
sole, CloseSpider, WebService, CoreStats, SpiderState
2012-08-11 17:38:02-0400 [scrapy] DEBUG: Enabled downloader middlewares: HttpAut
hMiddleware, DownloadTimeoutMiddleware, UserAgentMiddleware, RetryMiddleware, De
faultHeadersMiddleware, RedirectMiddleware, CookiesMiddleware, HttpProxyMiddlewa
re, HttpCompressionMiddleware, ChunkedTransferMiddleware, DownloaderStats
2012-08-11 17:38:02-0400 [scrapy] DEBUG: Enabled spider middlewares: HttpErrorMi
ddleware, OffsiteMiddleware, RefererMiddleware, UrlLengthMiddleware, DepthMiddle
ware
2012-08-11 17:38:02-0400 …