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Hello.
The error message "Unable to import module 'main': No module named 'main'" indicates that AWS Lambda is unable to locate or import your main module, which is supposed to contain the Lambda handler function.
Ensure your Lambda deployment package has the correct directory structure. The file containing your Lambda handler (handler) should be in the root of the ZIP file, not inside a directory (unless you are specifying the directory in the handler configuration).
Here’s a sample directory structure:
|- main.py
|- dependencies/
|- <Your Dependency Files>
In main.py, you should have a function named handler like so:
def handler(event, context):
# Your code here
Regards, Andrii
Since you're using Mangum with FastAPI, the handler is set to Mangum(app). The handler specification should be correct as main.handler.
Regards, Andrii
Hello Andrii S, Here’s the structure of aws_lambda_artifact.zip file: |- main.py |- dependencies/ Folders of all the necessary Python Libraries Templates folder
Inside main.py: ... app = FastAPI() handler = Mangum(app) templates = Jinja2Templates(directory="templates") chat_responses = [] ...
So, as you can see, I did not use a function for the handler but I set this handler to run my app through the Mangum handler.
What do think? What is the problem?
Thanks, Paola