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Enviornment : Amazon Linux 2 / Python 3.7.* Problem Boto3 Library 활용 시 Access key, Secret access key 를 통한 인증을 시도할 때 InvalidSignatureException 발생 botocore.exceptions.ClientError: An error occurred (InvalidSignatureException) when calling the LookupEvents operatation : The request signature we calculated does not match the signature you provided. Check your AWS Secret Access Key and signing method..