A previously working lambda function started throwing this error.

{
"errorMessage": "Unable to import module 'app': cannot import name 'DEFAULT_CIPHERS' from 'urllib3.util.ssl_' (/var/task/urllib3/util/ssl_.py)",
"errorType": "Runtime.ImportModuleError",
"requestId": "30bf7245-a58f-4192-81e3-5d122fb31d11",
"stackTrace": []
}

While trying to debug the issue, I narrowed it down to being a problem with requests (new release yesterday 5/3/2023). I then tried referencing the prior release which fixed the problem and my function worked as expected again.

To reproduce the error.

requirements,txt > requests- uses the latest release (2.30.0) and causes the lambda function to throw the error above.
requirements,txt > requests==2.29.0 - uses the prior release (2.29.0). With this release the error above no longer occurs.