如果网站不存在，如何仍然获得输出。（如何处理错误404）

How to still get an output if the website doesn't exist. (how to handle Error 404)

代码如下：

quote_page =  "https://en.wikipedia.org/wiki/" + Awi
page = urllib2.urlopen(quote_page)
soup = BeautifulSoup(page, 'html.parser')
wiki_box = soup.find('div', attrs={'class':'mw-parser-output'})
wikip = wiki_box.find('p')
wiki = wikip.text.strip()
print wiki

Awi 是 wiki 站点的关键字。但是，如果该站点不存在怎么办。有人可以帮忙吗？

使用 try&except

import urllib2
try:
    urllib2.urlopen(quote_page)
except urllib2.HTTPError as e:
    print(e.code)
except urllib2.URLError as e:
    print(e.args)

您需要获取请求状态码，看是否满足HTTP CODE 200

quote_page =  "https://en.wikipedia.org/wiki/" + Awi
page = urllib2.urlopen(quote_page)
if page.getcode() == 200:
    soup = BeautifulSoup(page, 'html.parser')
    wiki_box = soup.find('div', attrs={'class':'mw-parser-output'})
    wikip = wiki_box.find('p')
    wiki = wikip.text.strip()
    print(wiki)
else:
    print("Page could not be loaded")