Why do I get a "Bad handler AWS Lambda - not enough values to unpack" error?-CodePudding

I'm trying to execute a Lambda function but I get the following error:

{
  "errorMessage": "Bad handler 'AlertMetricSender': not enough values to unpack (expected 2, got 1)",
  "errorType": "Runtime.MalformedHandlerName",
  "stackTrace": []
}

My Lambda handler is specified in AlertMetricSender.py:

from modules.ZabbixSender import ZabbixSender
def lambda_handler(event, context):
    sender = ZabbixSender("10.10.10.10", 10051)
    sender.add("Zabbix server", "lambda.test", 5.65)
    sender.send()

CodePudding user response：

This is normally caused by an incorrect value specified for the "Handler" setting for the Lambda function.

It is a reference to the method in your function code that processes events i.e. the entry point.

The value of the handler argument is comprised of the below, separated by a dot:

The name of the file in which the Lambda handler function is located
The name of the Python handler function.

Make sure you have not missed the filename.

In this case, it looks like the handler should be set to AlertMetricSender.lambda_handler.