Python 请求 - 异常类型：ConnectionError - 尝试：除了不起作用
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Python requests - Exception Type: ConnectionError - try: except does not work
提问by user1431148
I am using a webservice to retrieve some data but sometimes the url is not working and my site is not loading. Do you know how I can handle the following exception so there is no problem with the site in case the webservice is not working?
我正在使用网络服务来检索一些数据，但有时 url 不起作用并且我的网站没有加载。您知道我如何处理以下异常，以便在 Web 服务不工作的情况下网站没有问题吗？
Django Version: 1.3.1
Exception Type: ConnectionError
Exception Value:
HTTPConnectionPool(host='test.com', port=8580): Max retries exceeded with url:
I used
我用了
try:
r = requests.get("http://test.com", timeout=0.001)
except requests.exceptions.RequestException as e: # This is the correct syntax
print e
sys.exit(1)
but nothing happens
但什么也没发生
采纳答案by ProfHase85
You should not exit your worker instance sys.exit(1)Furthermore you 're catching the wrong Error.
您不应该退出您的工作实例sys.exit(1)此外，您正在捕获错误的错误。
What you could do for for example is:
例如，您可以做的是：
from requests.exceptions import ConnectionError
try:
r = requests.get("http://example.com", timeout=0.001)
except ConnectionError as e: # This is the correct syntax
print e
r = "No response"
In this case your program will continue, setting the value of rwhich usually saves the response to any default value
在这种情况下，您的程序将继续，设置rwhich的值通常会将响应保存为任何默认值
