Bip39 Python. The passphrase is not really selected from your predefined list of 2048 words – it may be any word or phrase you choose. BIP39 is usually a style implementation that lays out how copyright wallets build the list of words (or "mnemonic codes") which make up a mnemonic https://socialrator.com/story9353443/bip39-wallet-https-linktr-ee-bip39-getting-my-bip39-passphrase-to-work