os.path.dirname(os.path.abspath(__file__))

config_name = 'myapp.cfg'
# determine if application is a script file or frozen exe
if getattr(sys, 'frozen', False): application_path = os.path.dirname(sys.executable)
elif __file__: application_path = os.path.dirname(__file__)
config_path = os.path.join(application_path, config_name)