运行 从 scrapy shell 查看（响应）时无法使用 chromium 访问文件
File can't be accessed with chromium when running view(reponse) from scrapy shell
我正在关注 scrapy.org 上的开发人员工具教程：
https://docs.scrapy.org/en/latest/topics/developer-tools.html#topics-developer-tools
在“网络工具”部分，当 运行ning:
scrapy shell "quotes.toscrape.com/scroll"
在终端内，我得到这个：
2020-11-24 11:22:37 [scrapy.utils.log] INFO: Scrapy 2.4.1 started (bot: quotetutorial)
2020-11-24 11:22:37 [scrapy.utils.log] INFO: Versions: lxml 4.6.1.0, libxml2 2.9.10, cssselect 1.1.0, parsel 1.6.0, w3lib 1.22.0, Twisted 20.3.0, Python 3.8.5 (default, Jul 28 2020, 12:59:40) - [GCC 9.3.0], pyOpenSSL 19.1.0 (OpenSSL 1.1.1h 22 Sep 2020), cryptography 3.2.1, Platform Linux-5.4.0-54-generic-x86_64-with-glibc2.29
2020-11-24 11:22:37 [scrapy.utils.log] DEBUG: Using reactor: twisted.internet.epollreactor.EPollReactor
2020-11-24 11:22:37 [scrapy.crawler] INFO: Overridden settings:
{'BOT_NAME': 'quotetutorial',
'DUPEFILTER_CLASS': 'scrapy.dupefilters.BaseDupeFilter',
'LOGSTATS_INTERVAL': 0,
'NEWSPIDER_MODULE': 'quotetutorial.spiders',
'ROBOTSTXT_OBEY': True,
'SPIDER_MODULES': ['quotetutorial.spiders']}
2020-11-24 11:22:37 [scrapy.extensions.telnet] INFO: Telnet Password: a6b7e55ad47ad876
2020-11-24 11:22:37 [scrapy.middleware] INFO: Enabled extensions:
['scrapy.extensions.corestats.CoreStats',
'scrapy.extensions.telnet.TelnetConsole',
'scrapy.extensions.memusage.MemoryUsage']
2020-11-24 11:22:37 [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']
2020-11-24 11:22:37 [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']
2020-11-24 11:22:37 [scrapy.middleware] INFO: Enabled item pipelines:
[]
2020-11-24 11:22:37 [scrapy.extensions.telnet] INFO: Telnet console listening on 127.0.0.1:6023
2020-11-24 11:22:37 [scrapy.core.engine] INFO: Spider opened
2020-11-24 11:22:37 [scrapy.core.engine] DEBUG: Crawled (404) <GET http://quotes.toscrape.com/robots.txt> (referer: None)
2020-11-24 11:22:38 [scrapy.core.engine] DEBUG: Crawled (200) <GET http://quotes.toscrape.com/scroll> (referer: None)
[s] Available Scrapy objects:
[s] scrapy scrapy module (contains scrapy.Request, scrapy.Selector, etc)
[s] crawler <scrapy.crawler.Crawler object at 0x7f4845b32070>
[s] item {}
[s] request <GET http://quotes.toscrape.com/scroll>
[s] response <200 http://quotes.toscrape.com/scroll>
[s] settings <scrapy.settings.Settings object at 0x7f4845b2fe20>
[s] spider <DefaultSpider 'default' at 0x7f4844ea69a0>
[s] Useful shortcuts:
[s] fetch(url[, redirect=True]) Fetch URL and update local objects (by default, redirects are followed)
[s] fetch(req) Fetch a scrapy.Request and update local objects
[s] shelp() Shell help (print this help)
[s] view(response) View response in a browser
到目前为止一切都很好。
然后我运行:
查看（回复）
我在终端中得到这个：
>>> view(response)
True
但是在我的浏览器中我得到：
file:///tmp/tmp_ssijiw4.html
Your file couldn’t be accessed
It may have been moved, edited, or deleted.
ERR_FILE_NOT_FOUND
我试过在线查找问题的答案，但没有得到任何有用的结果。
为什么会发生这种情况，我该如何解决？
这是因为 Chromium 在文件系统内部的访问受限：
将默认浏览器更改为 firefox：
https://askubuntu.com/questions/79305/how-do-i-change-my-default-browser
我正在关注 scrapy.org 上的开发人员工具教程：
https://docs.scrapy.org/en/latest/topics/developer-tools.html#topics-developer-tools
在“网络工具”部分，当 运行ning:
scrapy shell "quotes.toscrape.com/scroll"
在终端内，我得到这个：
2020-11-24 11:22:37 [scrapy.utils.log] INFO: Scrapy 2.4.1 started (bot: quotetutorial)
2020-11-24 11:22:37 [scrapy.utils.log] INFO: Versions: lxml 4.6.1.0, libxml2 2.9.10, cssselect 1.1.0, parsel 1.6.0, w3lib 1.22.0, Twisted 20.3.0, Python 3.8.5 (default, Jul 28 2020, 12:59:40) - [GCC 9.3.0], pyOpenSSL 19.1.0 (OpenSSL 1.1.1h 22 Sep 2020), cryptography 3.2.1, Platform Linux-5.4.0-54-generic-x86_64-with-glibc2.29
2020-11-24 11:22:37 [scrapy.utils.log] DEBUG: Using reactor: twisted.internet.epollreactor.EPollReactor
2020-11-24 11:22:37 [scrapy.crawler] INFO: Overridden settings:
{'BOT_NAME': 'quotetutorial',
'DUPEFILTER_CLASS': 'scrapy.dupefilters.BaseDupeFilter',
'LOGSTATS_INTERVAL': 0,
'NEWSPIDER_MODULE': 'quotetutorial.spiders',
'ROBOTSTXT_OBEY': True,
'SPIDER_MODULES': ['quotetutorial.spiders']}
2020-11-24 11:22:37 [scrapy.extensions.telnet] INFO: Telnet Password: a6b7e55ad47ad876
2020-11-24 11:22:37 [scrapy.middleware] INFO: Enabled extensions:
['scrapy.extensions.corestats.CoreStats',
'scrapy.extensions.telnet.TelnetConsole',
'scrapy.extensions.memusage.MemoryUsage']
2020-11-24 11:22:37 [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']
2020-11-24 11:22:37 [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']
2020-11-24 11:22:37 [scrapy.middleware] INFO: Enabled item pipelines:
[]
2020-11-24 11:22:37 [scrapy.extensions.telnet] INFO: Telnet console listening on 127.0.0.1:6023
2020-11-24 11:22:37 [scrapy.core.engine] INFO: Spider opened
2020-11-24 11:22:37 [scrapy.core.engine] DEBUG: Crawled (404) <GET http://quotes.toscrape.com/robots.txt> (referer: None)
2020-11-24 11:22:38 [scrapy.core.engine] DEBUG: Crawled (200) <GET http://quotes.toscrape.com/scroll> (referer: None)
[s] Available Scrapy objects:
[s] scrapy scrapy module (contains scrapy.Request, scrapy.Selector, etc)
[s] crawler <scrapy.crawler.Crawler object at 0x7f4845b32070>
[s] item {}
[s] request <GET http://quotes.toscrape.com/scroll>
[s] response <200 http://quotes.toscrape.com/scroll>
[s] settings <scrapy.settings.Settings object at 0x7f4845b2fe20>
[s] spider <DefaultSpider 'default' at 0x7f4844ea69a0>
[s] Useful shortcuts:
[s] fetch(url[, redirect=True]) Fetch URL and update local objects (by default, redirects are followed)
[s] fetch(req) Fetch a scrapy.Request and update local objects
[s] shelp() Shell help (print this help)
[s] view(response) View response in a browser
到目前为止一切都很好。
然后我运行:
查看（回复）
我在终端中得到这个：
>>> view(response)
True
但是在我的浏览器中我得到：
file:///tmp/tmp_ssijiw4.html
Your file couldn’t be accessed
It may have been moved, edited, or deleted.
ERR_FILE_NOT_FOUND
我试过在线查找问题的答案，但没有得到任何有用的结果。
为什么会发生这种情况，我该如何解决？
这是因为 Chromium 在文件系统内部的访问受限：
将默认浏览器更改为 firefox：
https://askubuntu.com/questions/79305/how-do-i-change-my-default-browser