python-mnemonic

Reference implementation of BIP-0039: Mnemonic code for generating deterministic keys

Abstract

This BIP describes the implementation of a mnemonic code or mnemonic sentence -- a group of easy to remember words -- for the generation of deterministic wallets.

It consists of two parts: generating the mnenomic, and converting it into a binary seed. This seed can be later used to generate deterministic wallets using BIP-0032 or similar methods.

BIP Paper

See https://github.com/bitcoin/bips/blob/master/bip-0039.mediawiki for full specification

Installation

To install this library and its dependencies use:

pip install mnemonic

Usage examples

Import library into python project via:

from mnemonic import Mnemonic

Initialize class instance, picking from available dictionaries:

• english
• chinese_simplified
• chinese_traditional
• french
• italian
• japanese
• korean
• spanish

mnemo = Mnemonic(language)
mnemo = Mnemonic("english")

Generate word list given the strength (128 - 256):

words = mnemo.generate(strength=256)

Given the word list and custom passphrase (empty in example), generate seed:

seed = mnemo.to_seed(words, passphrase="")

Given the word list, calculate original entropy:

entropy = mnemo.to_entropy(words)