Using multiple exceptions in Python?

Question

I'm trying to figure out how to write multiple exceptions for an IPAM API, which means that when one prefix is full, it should take the next one. this works with one, but not with several different:

dict_endpoints = {"vpn-1": 9,
                  "vpn-2": 67,
                  "vpn-3": 68,
                  "vpn-4": 69}

def api(var_endpoint):
    url = "https://myURL.org/"
    token = os.environ['NETBOXTOKEN']
    nb = pynetbox.api(url=url, token=token)
    prefix = nb.ipam.prefixes.get(var_endpoint)
    new_prefix = prefix.available_prefixes.create({"prefix_length": 48})
    print(new_prefix)

try:
    api(dict_endpoints["vpn-1"])
except:
    api(dict_endpoints["vpn-2"])
# multiple exceptions without exiting the script
#except:
#    api(dict_endpoints["vpn-3"])

Do you mean you want to catch exceptions from inside the except block? You could do that with a new try catch block inside it. This dosen't work because both those excepts are for catching errors from the same try block the second except dosen't catch things from the first except. — Ripp_
– Ripp_, Commented Aug 8, 2022 at 11:45

trincot · Accepted Answer · 2022-08-08 11:19:27Z

2

You could create a loop:

for endpoint in dict_endpoints.values():
    try:
        api(endpoint)
        break  # success!!
    except:
        pass  # ignore error and go to next iteration
else:  # all failed :-(
    print("all endpoints failed...")

answered Aug 8, 2022 at 11:19

trincot

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Maxwell · Accepted Answer · 2022-08-08 11:24:21Z

1

You can use else statement or handle multiple excepts like this:

try:
  --snip--
except (exception_1, exception_2):
  --snip--
else:
  --snip--

answered Aug 8, 2022 at 11:24

Maxwell

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