wget.download() 仅适用于某些链接

Question

我有一些链接的列表（它们是 pdf 文件）。我正在为列表中的每个链接运行wget.download()。但是，只有其中一些被下载，然后我得到：

File "/home/.local/lib/python3.6/site-packages/wget.py", line 526, in download
    (tmpfile, headers) = ulib.urlretrieve(binurl, tmpfile, callback)
  File "/usr/lib/python3.6/urllib/request.py", line 248, in urlretrieve
    with contextlib.closing(urlopen(url, data)) as fp:
  File "/usr/lib/python3.6/urllib/request.py", line 223, in urlopen
    return opener.open(url, data, timeout)
  File "/usr/lib/python3.6/urllib/request.py", line 532, in open
    response = meth(req, response)
  File "/usr/lib/python3.6/urllib/request.py", line 642, in http_response
    'http', request, response, code, msg, hdrs)
  File "/usr/lib/python3.6/urllib/request.py", line 570, in error
    return self._call_chain(*args)
  File "/usr/lib/python3.6/urllib/request.py", line 504, in _call_chain
    result = func(*args)
  File "/usr/lib/python3.6/urllib/request.py", line 650, in http_error_default
    raise HTTPError(req.full_url, code, msg, hdrs, fp)
urllib.error.HTTPError: HTTP Error 404: Not Found

我也尝试使用r = requests.get(link)，但问题仍然相同，另外，我收到此错误：

  File "/usr/lib/python3.6/urllib/request.py", line 532, in open
    response = meth(req, response)
  File "/usr/lib/python3.6/urllib/request.py", line 642, in http_response
    'http', request, response, code, msg, hdrs)
  File "/usr/lib/python3.6/urllib/request.py", line 570, in error
    return self._call_chain(*args)
  File "/usr/lib/python3.6/urllib/request.py", line 504, in _call_chain
    result = func(*args)
  File "/usr/lib/python3.6/urllib/request.py", line 650, in http_error_default
    raise HTTPError(req.full_url, code, msg, hdrs, fp

未下载的链接示例：

https://cnds.jacobs-university.de/courses/sads-2020/p6.pdf

如果我在浏览器上打开链接，我会下载。此外，这种方法一直有效，直到几个月前。想知道为什么它不再工作了

Answer 1

我目前还不能发表评论，但是您是否尝试过使用浏览器手动下载文件？如果可行，那么问题一定是 wget 由于某种原因无法达到目标。