def get_admin():
    '''
        Return the actual admin from token file
    '''
    if os.path.isfile(LOGIN_FILENAME):
        with open(LOGIN_FILENAME, 'r') as token_file:
            old_login, old_password = token_file.read().splitlines()[:2]
            return old_login, old_password
    else:
        return None, None
Return the actual admin from token file