Cannot catch ConnectionError with requests

Question

I'm doing this:

import requests
r = requests.get("http://non-existent-domain.test")

And getting

ConnectionError: HTTPConnectionPool(host='non-existent-domain.test', port=80): Max retries exceeded with url: / (Caused by NewConnectionError('<requests.packages.urllib3.connection.HTTPConnection object at 0x10b0170f0>: Failed to establish a new connection: [Errno 8] nodename nor servname provided, or not known',))

However, if I try to catch it like this:

try:
    r = requests.get("http://non-existent-domain.test")
except ConnectionError:
    print("ConnectionError")

Nothing changes, I still have ConnectionError unhandled. How to catch it properly?

Answer 1

That's a different ConnectionError. You are catching the built-in one, but requests has its own. So this should be

try:
    r = requests.get("http://non-existent-domain.test")
except requests.ConnectionError:
    print("ConnectionError")

# Output: ConnectionError