How to update data of a DynamoDB table with Python boto3

Please note that this snippet is part of the DynamoDB-Simpsons-episodes-full-example repository on GitHub.

Let's say you want to update an item of the DynamoDB simpsonsEpisodes table.

table = dynamodbRes.Table(TABLENAME)

    response = table.update_item(
        Key={
            'No_Season': 99,
            'No_Inseason' : 1
        },
        UpdateExpression='SET Title = :newTitle',
        ExpressionAttributeValues={
            ':newTitle': 'Worst episode ever!'
        },
        ReturnValues="UPDATED_NEW"
    )

print(response)

{'Attributes': {'Title': 'Worst episode ever!'},
    'ResponseMetadata': {'RequestId': 'MOUB7GEBMHP84TIC5FVMQBK8D3VV4KQNSO5AEMVJF66Q9ASUAAJG',
     'HTTPStatusCode': 200,
     'HTTPHeaders': {'server': 'Server',
      'date': 'Wed, 07 Dec 2022 16:23:17 GMT',
      'content-type': 'application/x-amz-json-1.0',
      'content-length': '52',
      'connection': 'keep-alive',
      'x-amzn-requestid': 'MOUB7GEBMHP84TIC5FVMQBK8D3VV4KQNSO5AEMVJF66Q9ASUAAJG',
      'x-amz-crc32': '1885714143'},
     'RetryAttempts': 0}}