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Bug: IoT Core registry models can't be imported from parser.models #8742
Description
Expected Behaviour
The six IoT Core registry models listed under "Built-in models" in the Parser docs can be imported from aws_lambda_powertools.utilities.parser.models, like the other built-in models.
Current Behaviour
They're missing from parser/models/__init__.py, so the import fails:
ImportError: cannot import name 'IoTCoreThingEvent' from 'aws_lambda_powertools.utilities.parser.models'
The same happens for IoTCoreThingTypeEvent, IoTCoreThingTypeAssociationEvent, IoTCoreThingGroupEvent, IoTCoreAddOrRemoveFromThingGroupEvent and IoTCoreAddOrDeleteFromThingGroupEvent. Importing them from the submodule (parser.models.iot_registry_events) works.
A small related one in the same docs table: it lists CloudwatchLogsModel, but the class is CloudWatchLogsModel, so that import fails too. The CloudWatchLogsEnvelope row uses the same spelling.
Code snippet
from aws_lambda_powertools.utilities.parser.models import IoTCoreThingEventPossible Solution
Export the six models from parser/models/__init__.py the same way as the other models, add a case to tests/functional/parser/test_model_imports.py, and fix the CloudwatchLogsModel spelling in docs/utilities/parser.md. I'm happy to send a PR for this.
Steps to Reproduce
pip install "aws-lambda-powertools[parser]==3.38.0"- Run the snippet above.
Powertools for AWS Lambda (Python) version
3.38.0
AWS Lambda function runtime
3.10 (ran locally)
Packaging format used
PyPi
Debugging logs
No response
Activity
boring-cyborg commentedon Nov 1, 2026
Thanks for opening your first issue here! We'll come back to you as soon as we can.
In the meantime, check out the #python channel on our Powertools for AWS Lambda Discord: Invite link
powertools-for-aws-oss-automation commentedon Nov 1, 2026
Thanks for opening your first issue here! We'll come back to you as soon as we can.
In the meantime, check out our GitHub Discussions: Join the conversation
leandrodamascena commentedon Nov 2, 2026
Thanks @Manishram-ai, confirmed on
develop: the six IoT Core models were never added toparser/models/__init__.py, so only the submodule import works, and the docs table hasCloudwatchLogsModeltwice where the class isCloudWatchLogsModel. Your plan is the right one, including the new cases intest_model_imports.py. Do you want to send the PR? Say so here and I'll assign the issue to you. This goes into 3.39.0, which ships in two days, so if you can open it in the next day it makes the cut.Manishram-ai commentedon Nov 2, 2026
Yes, I'd like to send it. I'll open the PR today.
powertools-for-aws-oss-automation commentedon Nov 3, 2026
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github-actions commentedon Nov 3, 2026
This is now released under 3.39.0 version!