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Flaskを使ってwebアプリケーション開発

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$ pip install flask

最小アプリの作成

app.py
from flask import Flask
app = Flask(__name__)

@app.route("/")
def hello_world():
  return "Hello, World!"

from flask import FlaskでflaskパッケージからFlaskクラスをインポートしています。
@app.route("/")でルートを好きなように設定することができます。

実行

$ export FLASK_APP=app.py
$ flask run

参照

VS CodeとFlaskによるWebアプリ開発「最初の一歩」

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