March 2018
Beginner to intermediate
624 pages
16h 10m
Japanese
Content preview from Head First Python 第2版 ―頭とからだで覚えるPythonの基本
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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.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.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.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.
全捕捉例外ハンドラ（改訂版）
現在のコードは処理したい
2
つの例外（
FileNotFoundError
と
PermissionError
）を明示的に
指定し、（その他のすべてを処理する）汎用的な
except
ブロックを提供しています。
('
データファイルがありません。
')
('
許可されていません。
')
('
他のエラーが発生しました。
')
('
データファイルがありません。
')
('
許可されていません。
')
('
他のエラーが発生しました。
')
11
章 例外処理
you are here
431
...
Exception
+-- StopIteration
+-- StopAsyncIteration
+-- ArithmeticError
| +-- FloatingPointError
| +-- OverflowError
| +-- ZeroDivisionError
+-- AssertionError
+-- AttributeError
+-- BufferError
+-- EOFError
...
このコードは正しく動作
しますが、予期せぬ例外が
投げられたときには
たいした情報が得られません。
特定の例外を指定するときには、
except
キーワードの後に例外名を指定しました。
except
の後に特定の例外名だけでなく、この階層の任意の名前を使って例外のクラス
を指定することもできます。
例 え ば、（ 明 ら か なゼ
ロ除 算 エラ ー では な く）数 学的 エラ ー が発 生 して い るか
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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.