December 2017
Beginner
624 pages
15h 38m
Korean
Content preview from Head First Python, 개정판 : 스스로 질문하며 답을 찾는 파이썬 학습서(Python 3)
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지금 여기예요
4
471
예외 처리
모든 예외를 잡아 처리하는 핸들러, 다시 확인하기
현재 우리 코드는 명시적으로
FileNotFoundError
,
PermissionError
두 가지 예외와 모든
예외를 잡아 처리하는
except
스위트를 제공합니다.
잘 작동하는 코드지만
예상하지 못한 예외가
발생했을 때 많은 정보를
제공하진 않아요.
특정 예외를 참조했을 때는
except
키워드 뒤에 있는 이름으로 예외 유형을 알 수
있습니다. 그 외에도 예외 계층도를 활용해 예외 범주를 확인할 수 있습니다.
예를 들어
0
으로 나누어 발생하는 특정 에러가 아니라 좀 더 광범위한 수식 관련 에러를
잡고 싶다면
except
ArithmeticError
를 이용해
FloatingPointError
,
OverowError
,
ZeroDivisionError
를 모두 잡을 수 있습니다. 같은 원리로
except
Exception
을 지정하면 모든 에러를 잡을 수 있습니다.
하지만 이미 특정 예외를 지정하지 않은
except
문으로 모든 에러를 잡을 수 있는데 이
내용이 무슨 도움이 될까요? 사실입니다. 하지만
except
대신
except
Exception
문을 이용하면 현재 예외를 변수에 할당할 수 있다는 장점이 있습니다. 보통
err
이라는
단어를 흔히 사용하며 이를 활용해 ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.