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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@app.route('/logout')
def do_logout() -> str::
return
ここにログアウト
コードを追加。
ヒント：辞書からキーを削除する方法
を忘れてしまったら、
>>>
プロンプトで
「
dir(dict)
」と入力して利用できる辞書
メソッドのリストを表示しましょう。
/logout
が書き終えたので、次は
/status
です。
/status
は、ブラウザに
2
つのメッセージのいずれかを返し
ます。
session
辞書に
logged_in
が値として存在する（そして、当然のこととして
True
に設定されている）ときに
は、「現在ログインしています」を返します。
session
辞書に
logged_in
キーがないときには、「ログインしていません」を返します。
/logout
が
logged_
in
キーの値を変更するのではなく
session
辞書から
logged_in
キーを削除するので、
logged_in
が
False
かを調べることはできません（なぜこの方法を採用しているかの説明は忘れていません。このあと説明します。こ
こでは、この方法でこの機能のコードを書く必要があるのです）。
次の空欄に
/status
のコードを書いてみましょう。
@app.route('/status')
def check_status() -> str:
if
return
return
10
章 関数デコレータ
you are here
377
ログアウトとステータスチェック用のコードを書く
次の課題は
/logout
と
/status ...
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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.