Boto - Uploading file to a specific location on Amazon S3

When I upload a file from my local system to S3

• Say media/downloads/logo.png it writes to <bucket>/media/downloads/logo.png
• Suppose if I want to write to <bucket>/logo.png instead of media/downloads, please find the below script

import subprocess
import mimetypes
from boto.s3.connection import S3Connection, Location
from boto.s3.key import Key
import boto
import os

S3_BUCKET = ''
S3_KEY = ''
S3_SECRET = ''
conn = S3Connection(S3_KEY, S3_SECRET, calling_format=boto.s3.connection.OrdinaryCallingFormat())
bucket = conn.get_bucket(S3_BUCKET)
print bucket

key_name = 'logo.png'
path = 'media/img/'
full_key_name = os.path.join(path, key_name)
new_key = Key(bucket)
new_key.key = 'logo.png'
ctype = mimetypes.guess_type(full_key_name)[0] or "application/x-octet-stream"
new_key.set_metadata('Content-Type', ctype)
new_key.set_contents_from_filename(full_key_name)
if new_key.exists() == True:
   bucket.set_acl("public-read",new_key.key)
   url = new_key.generate_url(0, 'GET', None, False)
   print url


Thanks for reading.