Remove a versioned S3 bucket

Let's imagine you have a S3 bucket that is versioned. It contains thousands of files. If you try to delete it you're warned because of the versions. You cannot select all files in AWS Console so a way to do this is from your command line:
aws s3 rm s3://YOUR_BUCKET --recursive

But what about the versions and maybe delete markers. We can use the following Python script:

#!/usr/bin/env python3

import boto3

bucket = 'YOUR_BUCKET'

s3_client = boto3.client('s3')

def remove_s3_object_versions(bucket):

    response = s3_client.list_object_versions(Bucket=bucket)

    versions = response.get('Versions', [])

    for version in versions:

        s3_client.delete_object(Bucket=bucket, Key=version['Key'], VersionId=version['VersionId'])

    delete_markers = response.get('DeleteMarkers', [])

    for marker in delete_markers:

        s3_client.delete_object(Bucket=bucket, Key=marker['Key'], VersionId=marker['VersionId'])

remove_s3_object_versions(bucket)