from web3 import *
web3 = Web3(IPCProvider(ipc_path='/path/to/geth.ipc'))
random_private_key = '0x71a7f0e2ef1b7ff501b65a1650d48b8d5521fadc9539eec146d4faa6f5ca9ccc'
random_password = 'qwertyuiop'
address = web3.personal.importRawKey(random_private_key, random_password)

# address -> '0x930198a4bdd322ee3305fcf0bcb106064b38754b'
# web3.eth.accounts -> [..., '0x930198a4bdd322ee3305fcf0bcb106064b38754b']