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#
# Licensed under the Apache License, Version 2.0 (the "License"). You
# may not use this file except in compliance with the License. A copy of
# the License is located at
#
# http://aws.amazon.com/apache2.0/
#
# or in the "license" file accompanying this file. This file is
# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
# ANY KIND, either express or implied. See the License for the specific
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import json

import boto3


# Create SQS client
sqs = boto3.client('sqs')

queue_url = 'SOURCE_QUEUE_URL'
dead_letter_queue_arn = 'DEAD_LETTER_QUEUE_ARN'

redrive_policy = {
    'deadLetterTargetArn': dead_letter_queue_arn,
    'maxReceiveCount': '10'
}


# Configure queue to send messages to dead letter queue
sqs.set_queue_attributes(
    QueueUrl=queue_url,
    Attributes={
        'RedrivePolicy': json.dumps(redrive_policy)
    }
)

Add dead letter SQS queue example