AWS S3 bucket, folder creation in python code

Basically s3 bucket doesn't have folder concept.
But this code create folder by key, and it doesn't have any object.


--

#create boto3 instance
s3_client = boto3.client(
        's3',
        aws_access_key_id=ACCESS_KEY,
        aws_secret_access_key=SECRET_KEY,
    )

#create folder by key    
s3_client.put_object(Bucket='s3-bucket-name', Key=('folder-name'+'/'))

--

Thank you.