view.py

from boto3 import Session
import string
import random

ACCESS_KEY = "your access key"
SECRET_KEY = "your_secret_key"
REGION_NAME = "your bucket's region name"
BUCKET_NAME = "your bucket name"

ses = Session(aws_access_key_id=ACCESS_KEY,
              aws_secret_access_key=SECRET_KEY,
              region_name=REGION_NAME)
client = ses.client('s3')

key = "The same key that you used while uploading the object"

url = client.generate_presigned_url(
    ClientMethod='get_object',
    Params={
        'Bucket': BUCKET_NAME,
        'Key': key,
    },
    ExpiresIn=600
)