Invalid country code returns 500 instead of 400/501

[aditya047-stack]

Bug Description

when Ppassing invalid/unsupported country code returns
500 Internal Server Error instead of proper error codes.Hence it is bug.

Steps to Reproduce

GET /country/subdivisions?code=IR → should be 501, gets 500

-not_implemented_501() is missing in models/responses.py

Proposed Fix

1. Add not_implemented_501() in responses.py

[aditya047-stack]

I'd like to work on this fix.

Plan:

1. Add not_implemented_501() in models/responses.py
2. Use it in routers/geo/country.py /subdivisions endpoint

Working on a PR.

[animator]

Shouldn't it be data not found error instead of server side error.

[aditya047-stack]

Thanks for the help! I've sent a PR for this change, you can see it there.