gpsoauth_login.py

import getpass
import json
import keyring
import subprocess

GOOGLE_ACCOUNT = 'your.email@gmail.com'
TOKEN_NAME = 'gpsoauth-token'

password = getpass.getpass('{} app password: '.format(GOOGLE_ACCOUNT))
input_string = '{}\n{}\n\n\n'.format(GOOGLE_ACCOUNT, password)
result = subprocess.run(
    'docker run -i gpsoauth_login'.split(' '),
    input=input_string.encode('utf-8'),
    stdout=subprocess.PIPE
)
json_output = result.stdout.decode('utf-8')
master_token = json.loads(json_output)['Token']
keyring.set_password(TOKEN_NAME, GOOGLE_ACCOUNT, master_token)