python-mote::try, except, else

useful else

• https://gomguard.tistory.com/122

try:
	# code can be causes exception
except SomeException as err:
	print(err)
except Exception as err:
	print(err)
else:
	# if there is no exception
    # this code will be called
finally:
	# do not care, has exception or not
    # called once anyway

else 구문을 잘쓰면 요긴하게 쓸 수 있겠다.