Python module failing in 'Tutorial: Develop and deploy a Python IoT Edge module using Linux containers'

Question

I've followed the instructions in Tutorial: Develop and deploy a Python IoT Edge module using Linux containers and all works fine EXCEPT that I can't get the Python module to run. I keep getting the following error message (even though I've copied the main.py code from the Tutorial)

IoT Hub Client for Python
./main.py:66: RuntimeWarning: coroutine 'execute_patch_for_async.<locals>.shutdown' was never awaited
client.shutdown()
RuntimeWarning: Enable tracemalloc to get the object allocation traceback
Traceback (most recent call last):
File "./main.py", line 115, in <module>
main()
File "./main.py", line 85, in main
client = create_client()
File "./main.py", line 63, in create_client
client.on_message_received = receive_message_handler
NameError: name 'receive_message_handler' is not defined

Attached is the main.py code that I'm using.151966-mainpy.txt

@AshokPeddakotla-MSFT ?

Answer 1

Hello @George Hill ,

I have created a new VS Code project based on the VS Code Azure IoT Edge extension, python template.

I use a Windows device with Docker CE installed and WSL2 underneath.

I was able to build and deploy the module:

My container is available here on docker hub.

I deployed to an edge device:

it was deployed successfully:

It runs already for 20 minutes:

I compared my main.py (my project is available on github) with yours but there are no differences.

You can try to deploy my docker hub module. You can also try to compile and deploy my project.

This should give you a starting point for a successful deployment.