Boto3 S3, sort bucket by last modified

If there are not many objects in the bucket, you can use Python to sort it to your needs.

Define a lambda to get the last modified time:

get_last_modified = lambda obj: int(obj['LastModified'].strftime('%s'))

Get all objects and sort them by last modified time.

s3 = boto3.client('s3')objs = s3.list_objects_v2(Bucket='my_bucket')['Contents'][obj['Key'] for obj in sorted(objs, key=get_last_modified)]

If you want to reverse the sort:

[obj['Key'] for obj in sorted(objs, key=get_last_modified, reverse=True)]

I did a small variation of what @helloV posted below. its not 100% optimum, but it gets the job done with the limitations boto3 has as of this time.

s3 = boto3.resource('s3')my_bucket = s3.Bucket('myBucket')unsorted = []for file in my_bucket.objects.filter():   unsorted.append(file)files = [obj.key for obj in sorted(unsorted, key=get_last_modified,     reverse=True)][0:9]

it seems that is no way to do the sort by using boto3. According to the documentation, boto3 only supports these methods for Collections:

all(), filter(**kwargs), page_size(**kwargs), limit(**kwargs)

Hope this help in some way.https://boto3.readthedocs.io/en/latest/reference/services/s3.html#S3.ServiceResource.buckets