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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PEP 8
にどのくらい準拠しているか？
pytest
と
pep8
をインストールしたので、
PEP 8
に準拠しているか調べら
れる状態になりました。
OS
にかかわらず、同じコマンドを使います（
OS
ごと
に異なるのはインストールのときだけです）。
pytest
のインストールで
py.test
という新しいプログラムがインス
トールされています。このプログラムを実行し、
vsearch.py
が
PEP 8
に準
拠しているか調べてみましょう。
vsearch.py
ファイルがあるフォルダと同
じフォルダにいることを確認し、次のコマンドを入力します。
py.test --pep8 vsearch.py
Windows
でこのコマンドを実行すると次のように出力されます。
4
章 コードの再利用
you are here
191
回り道
あれっ？
赤の出力は
よくないのでは。
おっと！違反があるようなので、このコードは
PEP 8
指針に完全には準拠し
ていないようです。
上の（または、指示どおりに実行している場合は画面上の）メッセージを
じっくり読んでください。「違反」はすべてホワイトスペース（例えば、空白、
タブ、改行など）に関するもののようです。
1
つずつ詳しく調べてみましょう。
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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.