AWS db updater lambda

from __future__ import print_function

import boto3
import os
from urllib2 import urlopen
from botocore.client import Config

GSHEETS = os.environ['GSHEETS']
ACCESS_KEY_ID = os.environ['ACCESS_KEY_ID']
ACCESS_SECRET_KEY = os.environ['ACCESS_SECRET_KEY']
BUCKET_NAME = os.environ['BUCKET']
FILE_NAME="wall/static/database.json"

def lambda_handler(event, context):
    data = urlopen(GSHEETS).read()
    
    print('Downloaded File')

    # S3 Connect
    s3 = boto3.resource(
        's3',
        aws_access_key_id=ACCESS_KEY_ID,
        aws_secret_access_key=ACCESS_SECRET_KEY,
        config=Config(signature_version='s3v4')
    )
    
    print('Uploading File')

    # Uploaded File
    s3.Bucket(BUCKET_NAME).put_object(Key=FILE_NAME, Body=data, ACL='public-read', CacheControl='max-age=0')