Python 2.7 刮擦错误-未处理或不允许HTTP状态代码

我运行了一个spider，得到了416个错误，日志如下。请问，有谁能帮我找出问题所在吗

2017-09-15 17:05:45 [scrapy] INFO: Scrapy 1.0.3 started (bot: apa)
2017-09-15 17:05:45 [scrapy] INFO: Optional features available: ssl, http11, boto
2017-09-15 17:05:45 [scrapy] INFO: Overridden settings: {'NEWSPIDER_MODULE': 'apa.spiders', 'FEED_FORMAT': 'xml', 'SPIDER_MODULES': ['apa.spiders'], 'FEED_URI': 'testex.xml', 'BOT_NAME': 'apa'}
2017-09-15 17:05:45 [scrapy] INFO: Enabled extensions: CloseSpider, FeedExporter, TelnetConsole, LogStats, CoreStats, SpiderState
2017-09-15 17:05:45 [scrapy] INFO: Enabled downloader middlewares: HttpAuthMiddleware, DownloadTimeoutMiddleware, RetryMiddleware, DefaultHeadersMiddleware, MetaRefreshMiddleware, HttpCompressionMiddleware, RedirectMiddleware, CookiesMiddleware, ChunkedTransferMiddleware, DownloaderStats
2017-09-15 17:05:45 [scrapy] INFO: Enabled spider middlewares: HttpErrorMiddleware, OffsiteMiddleware, RefererMiddleware, ``UrlLengthMiddleware, DepthMiddleware
2017-09-15 17:05:45 [scrapy] INFO: Enabled item pipelines: 
2017-09-15 17:05:45 [scrapy] INFO: Spider opened
2017-09-15 17:05:45 [scrapy] INFO: Crawled 0 pages (at 0 pages/min), scraped 0 items (at 0 items/min)
2017-09-15 17:05:45 [scrapy] DEBUG: Telnet console listening on 127.0.0.1:6023
2017-09-15 17:05:46 [scrapy] DEBUG: Crawled (416) <GET http://www.apa.org/research/action/aging.aspx> (referer: None)
2017-09-15 17:05:46 [scrapy] DEBUG: Ignoring response <416 http://www.apa.org/research/action/aging.aspx>: HTTP status code is not handled or not allowed
2017-09-15 17:05:46 [scrapy] INFO: Closing spider (finished)
2017-09-15 17:05:46 [scrapy] INFO: Dumping Scrapy stats:
{'downloader/request_bytes': 188,
 'downloader/request_count': 1,
 'downloader/request_method_count/GET': 1,
 'downloader/response_bytes': 1857,
 'downloader/response_count': 1,
 'downloader/response_status_count/416': 1,
 'finish_reason': 'finished',
 'finish_time': datetime.datetime(2017, 9, 15, 11, 35, 46, 706598),
 'log_count/DEBUG': 3,
 'log_count/INFO': 7,
 'response_received_count': 1,
 'scheduler/dequeued': 1,
 'scheduler/dequeued/memory': 1,
 'scheduler/enqueued': 1,
 'scheduler/enqueued/memory': 1,
 'start_time': datetime.datetime(2017, 9, 15, 11, 35, 45, 987587)}
2017-09-15 17:05:46 [scrapy] INFO: Spider closed (finished)

2017-09-15 17:05:45[scrapy]信息：scrapy 1.0.3已启动（bot:apa）
2017-09-15 17:05:45[scrapy]信息：可选功能：ssl、http11、boto
2017-09-15 17:05:45[scrapy]信息：覆盖的设置：{'NEWSPIDER_MODULE'：'apa.SPIDER'，'FEED_FORMAT'：'xml'，'SPIDER_MODULES'：['apa.SPIDER']，'FEED_URI'：'testex.xml'，'BOT_NAME'：'apa'}
2017-09-15 17:05:45[scrapy]信息：启用的扩展：CloseSpider、FeedExporter、TelnetConsole、LogStats、CoreStats、SpiderState
2017-09-15 17:05:45[scrapy]信息：启用的下载中间件：HttpAuthMiddleware、DownloadTimeoutMiddleware、RetryMiddleware、DefaultHeadersMiddleware、MetaRefreshMiddleware、HttpCompressionMiddleware、RedirectMiddleware、CookiesMiddleware、ChunkedTransferMiddleware、DownloadersStats
2017-09-15 17:05:45[scrapy]信息：启用的蜘蛛中间件：HttpErrorMiddleware、OffItemIDdleware、RefererMiddleware、`UrlLengthMiddleware、DepthMiddleware
2017-09-15 17:05:45[scrapy]信息：启用的项目管道：
2017-09-15 17:05:45[剪贴]信息：蜘蛛打开
2017-09-15 17:05:45[抓取]信息：抓取0页（以0页/分钟的速度），抓取0项（以0项/分钟的速度）
2017-09-15 17:05:45[scrapy]调试：Telnet控制台监听127.0.0.1:6023
2017-09-15 17:05:46[scrapy]调试：爬网（416）（参考：无）
2017-09-15 17:05:46[scrapy]调试：忽略响应：HTTP状态代码未处理或不允许
2017-09-15 17:05:46[scrapy]信息：关闭卡盘（已完成）
2017-09-15 17:05:46[scrapy]信息：倾销scrapy统计数据：
{'downloader/request_bytes'：188，
“下载程序/请求计数”：1，
“downloader/request\u method\u count/GET”：1，
“downloader/response_bytes”：1857，
“下载程序/响应计数”：1，
“下载程序/响应状态/计数/416”：1，
“完成原因”：“完成”，
“完成时间”：datetime.datetime（2017,9,15,11,35,46,706598），
“日志计数/调试”：3，
“日志计数/信息”：7，
“响应\u已接收\u计数”：1，
“调度程序/出列”：1，
“调度程序/出列/内存”：1，
“调度程序/排队”：1，
“调度程序/排队/内存”：1，
“开始时间”：datetime.datetime（2017,9,15,11,35,45987587）}
2017-09-15 17:05:46[刮擦]信息：蜘蛛网关闭（完成）

您可以使用此

class ApaSpider(CrawlSpider):
   handle_httpstatus_list = [416]

或在您的请求中设置meta

meta = {'handle_httpstatus_list': [416]}

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你能给我看一下“蜘蛛”吗？