Bip 39 github https://squareblogs.net/edelinepge/using-python-to-produce-a-bip39-mnemonic-a-developers-point-of-view Despite the fact that it uses BIP32 strategy you are able to however import BIP39 seeds into Electrum wallet. Also apart from BIp32 there is BIP44 version which some wallet use with the era of seeds. BIP39 solves this by making use of human-readable seed phrases https://socialskates.com/story22163733/enter-your-bip39-mnemonic-the-single-best-strategy-to-use-for-bip39-generator-https-dzen-ru-bip39-phrase-com