Bug: `log_uncaught_exceptions` only works locally and not on lambda

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評估

難度
2/5
預估耗時
1-3 小時
新手友好度
52/100
Issue 類型
文件
描述清晰度
基本清楚
活躍度
停滯
技術堆疊
aws, python

研究方向

Start by locating the documentation for Logger(log_uncaught_exceptions=True) and reviewing the discussion about why the behavior differs in AWS Lambda. Reproduce the provided handler in an actual Lambda runtime and compare its output with local execution. The change is complete when the documentation clearly states which environments support this option and explains the observed unstructured output; confirm the project’s documentation build or relevant checks if available.

由索引模型根據 Issue 內容生成。

描述

bug-upstream logger revisit-in-3-months
Expected Behaviour

When log_uncaught_exceptions=True, uncaught exceptions in a lambda are handled and transformed to a structured log.

Current Behaviour

Uncaught exceptions are printed unstructured.

Code snippet
from aws_lambda_powertools import Logger
from aws_lambda_powertools.utilities.typing import LambdaContext

logger = Logger(log_uncaught_exceptions=True)

def lambda_handler(event: dict, context: LambdaContext) -> str:
    raise(Exception("asdf"))
Possible Solution

Probably none. Document this behavior.

I don't think sys.excepthook can be overridden in a lambda container, but I have no proof because the original forum thread that details this has been deleted by AWS with no replacement.

Steps to Reproduce

Set log_uncaught_exceptions=True in an actual running lambda. If log_uncaught_exceptions=True on a local machine, the behavior runs just as intended.

AWS Lambda Powertools for Python version

latest

AWS Lambda function runtime

3.9

Packaging format used

Lambda Layers

Debugging logs

No response

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從這裡開始

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  3. Fork 儲存庫,在一個分支上完成修改。
  4. 送出 Pull Request,並在描述裡引用這個 Issue 編號。

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