How to use python and amazon boto to upload the Amazon s3

boto-s3-upload-directory.py

DIR_TO_UPLOAD = 'project-dist'

def upload_percent_cb(complete, total):
    sys.stdout.write('-')
    sys.stdout.flush()


def remove_root_dir_from_path(c):
        s = c.split('/')
        s.remove(DIR_TO_UPLOAD)
        return '/'.join(s)


def start_s3_upload_process():

    connection = S3Connection(aws_access_key_id=AWS_KEY_ID,
                              aws_secret_access_key=AWS_ACCESS_KEY)
    my_bucket_name = "your-s3-bucket-name"
    my_bucket = connection.get_bucket(my_bucket_name)
    if not my_bucket:
        print ("bucket does not exits creating  bucket")
        my_bucket = connection.create_bucket(my_bucket_name)

    upload_file_names = []
    print ("Walking through file DIST_DIR")
    for path, subdir, files in os.walk(DIR_TO_UPLOAD):
        print "Path is ",  path, "\n Subdir is ", subdir,  "File is " ,files
        for filename in files :
            upload_file_names.append(os.path.join(path, filename))



    for src_path in upload_file_names:
        dest_path = remove_root_dir_from_path(src_path)
        print ("Uploading %s to Amazon s3 bucket %s " % (src_path, dest_path))


        file_size = os.path.getsize(src_path)
        if file_size > MAX_SIZE:
            print ("Multi part upload")
            mp = my_bucket.initiate_multipart_upload(dest_path)
            with open(src_path, 'rb') as fp:
                while (fp.tell() < file_size):
                    fp_num += 1
                    print ("uploading part %i" % fp_num)
                    mp.upload_part_from_file(fp, fp_num, cb=upload_percent_cb, num_cb=10, size=PART_SIZE)
                mp.complete_upload()
        else:
            print "Single part uploading "
            k = boto.s3.key.Key(my_bucket)
            k.key = dest_path
            k.set_contents_from_filename(src_path, cb=upload_percent_cb, num_cb=10)