對本地文件Scrapy殼

Question

Scrapy 1.0之前，我可能已經運行Scrapy殼牌對本地文件很簡單：

$ scrapy shell index.html 

升級到1.0.3後，它開始拋出一個錯誤：

$ scrapy shell index.html 
2015-10-12 15:32:59 [scrapy] INFO: Scrapy 1.0.3 started (bot: scrapybot) 
2015-10-12 15:32:59 [scrapy] INFO: Optional features available: ssl, http11, boto 
2015-10-12 15:32:59 [scrapy] INFO: Overridden settings: {'LOGSTATS_INTERVAL': 0} 
Traceback (most recent call last): 
    File "/Users/user/.virtualenvs/so/bin/scrapy", line 11, in <module> 
    sys.exit(execute()) 
    File "/Users/user/.virtualenvs/so/lib/python2.7/site-packages/scrapy/cmdline.py", line 143, in execute 
    _run_print_help(parser, _run_command, cmd, args, opts) 
    File "/Users/user/.virtualenvs/so/lib/python2.7/site-packages/scrapy/cmdline.py", line 89, in _run_print_help 
    func(*a, **kw) 
    File "/Users/user/.virtualenvs/so/lib/python2.7/site-packages/scrapy/cmdline.py", line 150, in _run_command 
    cmd.run(args, opts) 
    File "/Users/user/.virtualenvs/so/lib/python2.7/site-packages/scrapy/commands/shell.py", line 50, in run 
    spidercls = spidercls_for_request(spider_loader, Request(url), 
    File "/Users/user/.virtualenvs/so/lib/python2.7/site-packages/scrapy/http/request/__init__.py", line 24, in __init__ 
    self._set_url(url) 
    File "/Users/user/.virtualenvs/so/lib/python2.7/site-packages/scrapy/http/request/__init__.py", line 59, in _set_url 
    raise ValueError('Missing scheme in request url: %s' % self._url) 
ValueError: Missing scheme in request url: index.html 

此行爲是打算還是這是Scrapy Shell中的錯誤？

---

作爲一種變通方法，我可以使用文件的絕對路徑在「文件」 URL方案：

$ scrapy shell file:////absolute/path/to/index.html 

這是很明顯，更方便易行。

Answer 1

根據Running scrapy shell against a local file的討論，相關更改由this commit引入。有一個Pull Request爲這個問題創建了使Scrapy shell再次打開本地文件，它計劃成爲Scrapy 1.1的一部分。