from this import d message = "Thanks for all the added clarity in error messages, Pablo!" reverse_cypher_dict = {value: key for key, value in d.items()} encoded_characters = [] for character in message: if character.isalpha(): encoded_characters.append(reverse_cypher_dict.get(character, "")) else: encoded_characters.append(character) encoded_message = "".join(encoded_characters) print(encoded_message)