Base64 Encoding/Decoding String with Python

base64_use.py

import base64
encoded_string = base64.b64encode(bytes(string, 'utf-8'))

# source: https://stackoverflow.com/questions/21478086/how-to-store-binary-data-in-dynamo-with-boto
email_addreses = [base64.b64decode(item['EmailAddress'].value).decode('utf-8') for item in queried_items]