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How to download the latest file of an S3 bucket using Boto3?

Hello Guys, How are you all? Hope You all Are Fine. Today We Are Going To learn about How to download the latest file of an S3 bucket using Boto3 in Python. So Here I am Explain to you all the possible Methods here.

Without wasting your time, Let’s start This Article.

Table of Contents

How to download the latest file of an S3 bucket using Boto3?

  1. How to download the latest file of an S3 bucket using Boto3?

    Variation of the answer I provided for: Boto3 S3, sort bucket by last modified. You can modify the code to suit to your needs.

  2. download the latest file of an S3 bucket using Boto3

    Variation of the answer I provided for: Boto3 S3, sort bucket by last modified. You can modify the code to suit to your needs.

Method 1

Variation of the answer I provided for: Boto3 S3, sort bucket by last modified. You can modify the code to suit to your needs.

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

s3 = boto3.client('s3')
objs = s3.list_objects_v2(Bucket='my_bucket')['Contents']
last_added = [obj['Key'] for obj in sorted(objs, key=get_last_modified)][0]

If you want to reverse the sort:

[obj['Key'] for obj in sorted(objs, key=get_last_modified, reverse=True)][0]

Method 2

You can do

import boto3

s3_client = boto3.client('s3')
response = s3_client.list_objects_v2(Bucket='bucket_name', Prefix='prefix')
all = response['Contents']        
latest = max(all, key=lambda x: x['LastModified'])

Summery

It’s all About this issue. Hope all Methods helped you a lot. Comment below Your thoughts and your queries. Also, Comment below which Method worked for you? Thank You.

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