当无法访问网站时，Python抛出错误

我有以下代码来检查是否有特定的网站可用

import urllib.request
with open("addresses.txt") as file:
url_list = file.read()
url_list = url_list.splitlines()

print("Chcking the repsonse code for the webiste")
for url in url_list:

response = urllib.request.urlopen(url).getcode()
response = (f"{response} available")
if "200 available" in response:
    print(f"{url} is up and running")
else:
    print(f"{url} is not reachable") 

代码一直正常工作，直到可以访问网站，但是如果网站关闭，它不会打印出“google.com不可访问”的消息，而是抛出一个错误。

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很抱歉，如果代码不太专业，我是python新手，因此这里的任何帮助都会很有帮助。

您可能需要执行以下操作：

try:
    response = urllib.request.urlopen(url).getcode()
    response = (f"{response} available")
    if "200 available" in response:
        print(f"{url} is up and running")
    else:
        print(f"{url} is not reachable") 
except Exception as ex:
    print(f"Attempting to contact {url} led to error:\n{ex}")

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如果要捕获异常，请将调用包装在

try/except

块中。