Python 3.6.3 urlopen从URI中删除服务器名称以存储在远程服务器上的html文件

我需要解析数百个存档在服务器上的HTML文件。这些文件通过UNC访问,然后使用pathlib的as_uri()方法将UNC路径转换为URI。Python 3.6.3 urlopen从URI中删除服务器名称以存储在远程服务器上的html文件

例如低于

完整UNC路径:\\ dmsupportfs \〜图像\沙箱\的test.html

from urllib.request import urlopen 

from bs4 import BeautifulSoup

import os, pathlib

source_path = os.path.normpath('//dmsupportfs/~images/sandbox/') + os.sep

filename = 'test.html'

full_path = source_path + filename

url = pathlib.Path(full_path).as_uri()

print('URL -> ' + url)

url_html = urlopen(url).read()

所以URI(L)我传递到的urlopen是:文件:// dmsupportfs/%7Eimages/sandbox/test.html

我可以将其插入任何Web浏览器并返回页面,但是,当urlopen去阅读页面时,它将忽略/删除URI中的服务器名称(dmsupportfs),并且所以读取失败,无法找到文件。我认为这与urlopen方法如何处理URI有关,但我很困惑(可能是快速且容易解决的问题......对不起,Python有点新鲜)。如果我将UNC位置映射到一个驱动器号,然后使用映射的驱动器号而不是UNC路径,则此操作没有任何问题。我想不必依靠映射驱动器来完成这个。有什么建议?

下面是从上面的代码显示错误的输出:

Traceback (most recent call last): 

File "C:\Anaconda3\lib\urllib\request.py", line 1474, in open_local_file

stats = os.stat(localfile)

FileNotFoundError: [WinError 3] The system cannot find the path specified: '\\~images\\sandbox\\test.html'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):

File "url_test.py", line 10, in <module>

url_html = urlopen(url).read()

File "C:\Anaconda3\lib\urllib\request.py", line 223, in urlopen

return opener.open(url, data, timeout)

File "C:\Anaconda3\lib\urllib\request.py", line 526, in open

response = self._open(req, data)

File "C:\Anaconda3\lib\urllib\request.py", line 544, in _open

'_open', req)

File "C:\Anaconda3\lib\urllib\request.py", line 504, in _call_chain

result = func(*args)

File "C:\Anaconda3\lib\urllib\request.py", line 1452, in file_open

return self.open_local_file(req)

File "C:\Anaconda3\lib\urllib\request.py", line 1491, in open_local_file

raise URLError(exp)

urllib.error.URLError: <urlopen error [WinError 3] The system cannot find the path specified: '\\~images\\sandbox\\test.html'>

UPDATE:那么,通过上面的回溯和实际方法挖掘,我发现这一点,它实际上告诉我什么我想处理文件:// URI不适用于远程服务器。

def file_open(self, req): 

url = req.selector

if url[:2] == '//' and url[2:3] != '/' and (req.host and

req.host != 'localhost'):

if not req.host in self.get_names():

raise URLError("file:// scheme is supported only on localhost")

任何想法,然后如何让这个工作没有映射驱动器?

回答:

所以我更换了这一点:

url = pathlib.Path(full_path).as_uri()  

url_html = urlopen(url).read()

与此:

with open(full_path) as url_html 

,并能传递到BeautifulSoup,并根据需要解析...

以上是 Python 3.6.3 urlopen从URI中删除服务器名称以存储在远程服务器上的html文件 的全部内容, 来源链接: utcz.com/qa/267367.html

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