Any bucket created through cloudformation will have `"LocationConstraint": null`, implying us-east-1, although in AWS CloudFormation the bucket's region will always match the template's region.
import io
import os
import re
import sys
import json
import uuid
import time
import glob
import base64
import socket
import hashlib
import decimal
import logging
import zipfile
import binascii
import tempfile
import threading
import subprocess
import six