Scrapy shell 针对本地文件

Question

在 Scrapy 1.0 之前，我可以运行 Scrapy Shell 非常简单地针对本地文件：

$ scrapy shell index.html

升级到1.0.3后，开始报错：

$ 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

这种行为是故意的还是 Scrapy 中的错误Shell？

作为解决方法，我可以在 "file" URL 方案中使用文件的绝对路径：

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

这显然不那么方便和容易。

Answer 1

更新： for Scrapy >=1.1，这是内置功能，你可以这样做：

scrapy shell file:///path/to/file.html

旧答案：

根据 Running scrapy shell against a local file, the relevant change was introduced by this commit. There was a Pull Request 中针对此问题创建的讨论 使 Scrapy shell 再次打开本地文件 并且计划成为碎片化 1.1.

Answer 2

配置如下

MacOS X
刮擦 1.6.0

对我有用的是 scrapy shell ./index.html 和 index.html 在你的 scrapy 生成项目的根文件夹中

Answer 3

对于 Scrapy==2.5.1，您可以运行 Scrapy Shell 对本地文件，如下所示：

如果文件在同一目录中，请在文件名前使用“./”，如下所示：

scrapy shell ./file.html

Scrapy shell 针对本地文件

Scrapy shell against a local file

python

shell

scrapy

web-scraping

scrapy-shell