How to handle keyError in python and continue execution?

Question

My python rest API receives a JSON and extracts the values from keys.

Problem: The program throws a keyError and exits if any one key is not present or if the keys' value is null. The function is not inside a loop.

I want the program to continue execution even if the key is not present.

So, catch the exception with except. Or use a form like .get that doesn't throw. — Antti Haapala
– Antti Haapala, Commented Apr 23, 2018 at 2:30
Also, did you try searching Google first? There are so many duplicate QA on Stack Overflow that I don't even know which one to choose. — Antti Haapala
– Antti Haapala, Commented Apr 23, 2018 at 2:33

Cole Howard · Accepted Answer · 2018-04-23 02:30:28Z

0

The simplest way in Python is:

try:
    extract = json_resp[key]
except KeyError:
    pass

Alternatively you can use get, with a default:

extract = json_resp.get(key, default)

Which fall back to the default if the key isn't present in the dictionary.

answered Apr 23, 2018 at 2:30

Cole Howard

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