AWS-S3-Python

Upload, read, write and download files in and from S3 bucket using Python.

This is an example of using Boto3, AWS API for python, for creating S3(Simple Storage Service) bucket(s) as well as uploading/downloading/deleting files from bucket(s).

Creating S3 resource and client

Resource and client are created once during the construction of class and will be available throughout the program lifecycle.

def __init__(self):
    self.s3 = boto3.resource('s3')
    self.client = boto3.client('s3')

List all the buckets in S3

List all the buckets of a given region. Return the list of bucket names.

list_buckets(region)

Create bucket in S3

Create buckets of same name in different regions. You can repeat the bucket creation using the last param 'repeat'. Return None if successful, otherwise error.

create_buckets(bucket_name=None, regions=[], repeat=1)

Upload file in S3 bucket

Upload a file of name 'filename' in the bucket named 'bucket' and set the key for the server file as 'key'. Return the key . Key for success, False otherwise.

upload_file(filename, bucket, key)

Download file from S3 bucket

Download a file from bucket 'bucket' using the key 'key' and save it as 'filename'(Can be in the working directory or in any valid directory). Returns True if successful, otherwise False.

download_file(bucket, key, filename)

Delete file from S3 bucket

Delete the file having key 'key' from the bucket named 'bucket'. Returns True if successful, otherwise False.

delete_file(bucket, key)