为什么某些网站使用urllib.request.urlopen时python为什么返回错误

Question

当我在python 3中使用url lib.requests时，它适用于某些网站，但对于其他网站则返回错误：

import urllib.request
urllib.request.urlopen('wikipedia.org')

Traceback (most recent call last):
  File "/Users/etudiant/Desktop/test.py", line 3, in <module>
    urllib.request.urlopen('wikipedia.org')
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/urllib/request.py", line 222, in urlopen
    return opener.open(url, data, timeout)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/urllib/request.py", line 510, in open
    req = Request(fullurl, data)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/urllib/request.py", line 328, in __init__
    self.full_url = url
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/urllib/request.py", line 354, in full_url
    self._parse()
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/urllib/request.py", line 383, in _parse
    raise ValueError("unknown url type: %r" % self.full_url)
ValueError: unknown url type: 'wikipedia.org'
>>> 

Answer 1

您需要将网址更改为：

http://wikipedia.org

现在应该可以工作了。

Answer 2

尝试这个 ：

import urllib.request
urllib.request.urlopen('https://www.wikipedia.org/')