Upload-Download File From S3 with Boto3 Python

#INTRODUCTION
Today we will talk about how to download , upload file to Amazon S3 with Boto3 Python.

#GETTING STARTED

Before we start , Make sure you notice down your S3 access key and S3 secret Key.

###1. AWS Configure
Before we could work with AWS S3. We need to configure it first.

• Install awscli using pip

pip install awscli

• Configure

aws configure
AWS Access Key ID [None]: input your access key
AWS Secret Access Key [None]: input your secret access key
Default region name [None]: input your region
Default output format [None]: json

• Verifies

aws s3 ls

if you see there is your bucket show up. it mean your configure is correct. Ok, Now let's start with upload file.

###2. Upload File

import boto3

bucketName = "Your S3 BucketName"
Key = "Original Name and type of the file you want to upload into s3"
outPutname = "Output file name(The name you want to give to the file after we upload to s3)"

s3 = boto3.client('s3')
s3.upload_file(Key,bucketName,outPutname)

###3. Download File

import boto3
import botocore

Bucket = "Your S3 BucketName"
Key = "Name of the file in S3 that you want to download"
outPutName = "Output file name(The name you want to save after we download from s3)"

s3 = boto3.resource('s3')
try:
    s3.Bucket(Bucket).download_file(Key, outPutName)
except botocore.exceptions.ClientError as e:
    if e.response['Error']['Code'] == "404":
        print("The object does not exist.")
    else:
        raise