python scrapy shell exception: address “'http:

问题:

Actually it's a sample of scrapy tutorial in Extracting data of scrapy. Everything goes well until the sample of scrapy shell, when I type the command in Windows cmd:

scrapy shell 'http://quotes.toscrape.com/page/1/'

I got an exception like

twisted.internet.error.DNSLookupError: DNS lookup failed: address "'http:" not found: [Errno 11001] getaddrinfo failed.

Exception in thread Thread-1 (most likely raised during interpreter shutdown):

in detail it's like: [ and I have searched the stackoverflow and find a similar problem like question and one answer is try another terminal,and I tried the terminal of Pycharm but it fails with the same exception.

PS: I work on windows and Python 2.7.12, Anaconda 4.0.0 (64-bit)

I'm quite new to scrapy so any help is appreciated, thank you.

回答1:

Well,it may be related to the quotation, I tried to use " to enclose the urls and it works, I do not know if this command differs in different OS since the original tutorial commmand code use the ' to enclose the urls.

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I also post this issue on the scrapy and as @kmike said, it works well with ' on other OS like (MAC and Linux or Unix) (github)

回答2:

For anyone finding this question with the same error for a local .html files, I found I had to prefix the filename with the current folder and not just supply the filename.

Using

scrapy shell local_file.html

results in the error

twisted.internet.error.DNSLookupError: DNS lookup failed: address 'local_file.htm' not found: [Errno 8] nodename nor servname provided, or not known.

however, using

scrapy shell ./local_file.html

launches the shell and loads the file.

Although the format of the file path is specified in the docs, I didn't realise it would be required (I assumed I would not have to supply ./ for a local file) but the docs do give examples to follow.

shell also works for local files. This can be handy if you want to play around with a local copy of a web page. shell understands the following syntaxes for local files:

UNIX-style

scrapy shell ./path/to/file.html

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

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

File URI

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

回答3:

I had the same problem and removing the single quotes around the url worked for me. I'm on windows, python 3.6