A script to delete all objects, versions and delete markers from an s3 bucket.

delete_all_objects.py

#!/usr/bin/env python
import boto3

client = boto3.client('s3')
Bucket = 'a-bucket'
Prefix = 'a-prefix' # leave blank to delete the entire contents
IsTruncated = True
MaxKeys = 1000
KeyMarker = None

while IsTruncated == True:
        if not KeyMarker:
                version_list = client.list_object_versions(
                        Bucket=Bucket,
                        MaxKeys=MaxKeys,
                        Prefix=Prefix)
        else:
                version_list = client.list_object_versions(
                        Bucket=Bucket,
                        MaxKeys=MaxKeys,
                        Prefix=Prefix,
                        KeyMarker=KeyMarker)

	try:
        	objects = []
        	versions = version_list['Versions']
        	for v in versions:
                	objects.append({'VersionId':v['VersionId'],'Key': v['Key']})
        	response = client.delete_objects(Bucket=Bucket,Delete={'Objects':objects})
		print response
	except:
		pass

        try:
		objects = []
        	delete_markers = version_list['DeleteMarkers']
        	for d in delete_markers:
                	objects.append({'VersionId':d['VersionId'],'Key': d['Key']})
        	response = client.delete_objects(Bucket=Bucket,Delete={'Objects':objects})
		print response
	except:
		pass

        IsTruncated = version_list['IsTruncated']
        KeyMarker = version_list['NextKeyMarker']

Hi there!

Thanks a lot for this gist! I reused your code for a script that completely deletes the bucket's contents. I reworked and extended it a bit with an argument parser to be able to pass bucket name and profile. The user can also specify if he wants to delete the bucket after cleaning it.
It's work in progress but I'm happy to share it here, if anyone is interested: https://github.com/dimitrigraf/python-scripts/blob/main/empty-s3-bucket

I do have a question regarding the very last line of the script, where the KeyMarker variable is set. When I ran the script a few times on a test bucket with 1010 objects, the script fails in the very last loop because NextKeyMarker cannot be found/looked up anymore. I guess that makes sense. But since I'm not very experienced with Python, I was wondering how to properly catch such exceptions.

Any ideas?

Since the KeyMarker property is no longer available at this point, I changed and tested the above code as following.
Heads up: ChatGPT could not help me with this requirement.

#!/usr/bin/env python
import boto3

def delete_markers(bucket_name, prefix):
    client = boto3.client('s3')
    Bucket = bucket_name
    Prefix = prefix
    IsTruncated = True
    MaxKeys = 1000
    
    while IsTruncated == True:
        version_list = client.list_object_versions(
            Bucket=Bucket,
            MaxKeys=MaxKeys,
            Prefix=Prefix
        )
        try:
            objects = []
            versions = version_list ['Versions']
            for v in versions:
                objects.append({'VersionId':v['VersionId'],'Key':v['Key']})
                response = client.delete_objects(Bucket=Bucket,Delete={'Objects':objects})
                print (response)
        except:
            pass
        try:
            objects = []
            delete_markers = version_list['DeleteMarkers']
            for d in delete_markers:
                objects.append({'VersionId':d['VersionId'],'Key': d['Key']})
                response = client.delete_objects(Bucket=Bucket,Delete={'Objects':objects})
                print (response)
        except:
            pass
        IsTruncated = version_list['IsTruncated']

delete_markers('my_bucket_name','my/path')

Hi @giansmart ,

Thanks a lot above script worked smootly :)