import configparser config = configparser.ConfigParser() file = 'config.ini' config.read(file) config.add_section('login') config.set('login','username','1111') config.set('login','password','2222') with open(file,'w') as configfile: config.write(configfile) config = configparser.ConfigParser() file = 'config.ini' config.read(file) username = config.get('login','username') password = config.get('login','password') print(username,password)