How to generate public and private key pairs from the 12 seed words in python
Please try the following demo, and the result is same with https://iancoleman.io/bip39/.

$ python3.6 test.py
{'addr': '1A9vZ4oPLb29szfRWVFe1VoEe7a2qEMjvJ',
 'coin': 'BTC',
 'mnemonic_words': 'aware report movie exile buyer drum poverty supreme gym oppose float elegant',
 'privatekey': 'L3g3hhYabnBFbGqd7qReebwCrRkGhAzaX4cBpYSv5S667sWJAn5A',
 'publickey': '029dc2912196f2ad7a830747c2490287e4ff3ea52c417598681a955dcdf473b6c0'}




#!/usr/bin/env python3
# -*- coding: utf-8 -*-

import pprint
import binascii
import mnemonic
import bip32utils

def bip39(mnemonic_words):
    mobj = mnemonic.Mnemonic("english")
    seed = mobj.to_seed(mnemonic_words)

    bip32_root_key_obj = bip32utils.BIP32Key.fromEntropy(seed)
    bip32_child_key_obj = bip32_root_key_obj.ChildKey(
        44 + bip32utils.BIP32_HARDEN
    ).ChildKey(
        0 + bip32utils.BIP32_HARDEN
    ).ChildKey(
        0 + bip32utils.BIP32_HARDEN
    ).ChildKey(0).ChildKey(0)

    # return {
    #     'mnemonic_words': mnemonic_words,
    #     'bip32_root_key': bip32_root_key_obj.ExtendedKey(),
    #     'bip32_extended_private_key': bip32_child_key_obj.ExtendedKey(),
    #     'bip32_derivation_path': "m/44'/0'/0'/0",
    #     'bip32_derivation_addr': bip32_child_key_obj.Address(),
    #     'coin': 'BTC'
    # }

    return {
        'mnemonic_words': mnemonic_words,
        # 'bip32_root_key': bip32_root_key_obj.ExtendedKey(),
        # 'bip32_extended_private_key': bip32_child_key_obj.ExtendedKey(),
        # 'path': "m/44'/0'/0'/0",
        'addr': bip32_child_key_obj.Address(),
        'publickey': binascii.hexlify(bip32_child_key_obj.PublicKey()).decode(),
        'privatekey': bip32_child_key_obj.WalletImportFormat(),
        'coin': 'BTC'
    }


if __name__ == '__main__':
    mnemonic_words = "aware report movie exile buyer drum poverty supreme gym oppose float elegant"
    pprint.pprint(bip39(mnemonic_words))