'System.Private.CoreLib: Result: Failure Exception: KeyError: 'main' Azure timer trigger function using Python

I am trying to build a Azure Timer Trigger Function using Python. But when i am trying to execute some function to do some calculation from database in the "main" function, its through me a failure Exception(Please see the image.) Can some one share your experience please?

Solution 1:^[1]

This might be a version issue of azure functions core tool. Updating the Function Tool to V4 could resolve the issue.

Also you can refer [BUG] Local Debugging Fails With "KeyError: 'main'" where they were dealing with a similar issue.

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Solution 1	SwethaKandikonda-MT

'System.Private.CoreLib: Result: Failure Exception: KeyError: '__main__' Azure timer trigger function using Python

Solution 1:[1]

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'System.Private.CoreLib: Result: Failure Exception: KeyError: 'main' Azure timer trigger function using Python

Solution 1:^[1]