myCar/lib/config.py

# return a configuration objects with default values
def myCar_read_config_defaults(config):
    import configparser
    if not config.sections():
    # there is nothing, lets setup default values
        config['paths'] = { 'app' : '/opt/myCar',
                            'log' : 'data/log',
                            'record' : 'data/rec' }
        config['connections'] = { 'bt_dev' : '/dev/rfcomm',
                                  'gps_dev' : '/dev/ttyS1',
                                  'wifi_pwd' : 'myCar123' }
        config['startup'] = { 'bt_connect' : True,
                              'autorecord' : True }

    # return a valid config object either 
    # with or without default values
    return config

def myCar_save_config(config):
    import configparser, logging
    
    with open('data/etc/myCar.conf', 'w') as configfile:
        config.write(configfile)
        logging.info('configuration saved')