開発環境
- macOS Mojave - Apple (OS)
- Emacs (Text Editor)
- Windows 10 Pro (OS)
- Visual Studio Code (Text Editor)
- Python 3.7 (プログラミング言語)
Head First Python 第2版 ―頭とからだで覚えるPythonの基本 (Paul Barry (著)、嶋田 健志 (監修)、木下 哲也 (翻訳)、オライリージャパン)の6章(データの格納と操作 - データをファイルに格納する)、エクササイズ(p. 259)を取り組んでみる。
コード(Emacs)
Python 3
from flask import Flask, render_template, request, escape
import vsearch
app = Flask(__name__)
def log_request(req: 'flask_request', res: str) -> None:
with open('vsearch.log', 'a') as log:
print(f'{dir(req)} {res}', file=log)
@app.route('/')
@app.route('/entry')
def entry_page() -> str:
return render_template(
'entry.html',
the_title='Welcom to search4letters on the web!')
@app.route('/search4', methods=['POST'])
def do_search() -> str:
phrase = request.form['phrase']
letters = request.form['letters']
results = str(vsearch.search4letters(phrase, letters))
log_request(request, results)
title = '検索結果'
return render_template(
'results.html',
the_title=title,
the_phrase=phrase,
the_letters=letters,
the_results=results)
@app.route('/viewlog')
def view_the_log() -> str:
with open('vsearch.log') as log:
contents = log.read()
return escape(contents)
if __name__ == '__main__':
app.run(debug=True)
入出力結果(Terminal, cmd(コマンドプロンプト)), Jupyter(IPython)、
$ python3 hello_flask.py * Serving Flask app "hello_flask" (lazy loading) * Environment: production WARNING: Do not use the development server in a production environment. Use a production WSGI server instead. * Debug mode: on * Running on http://127.0.0.1:5000/ (Press CTRL+C to quit) * Restarting with stat * Debugger is active! * Debugger PIN: 178-619-558 127.0.0.1 - - [23/Nov/2018 12:12:21] "GET / HTTP/1.1" 200 - 127.0.0.1 - - [23/Nov/2018 12:12:21] "GET /static/hf.css HTTP/1.1" 404 - 127.0.0.1 - - [23/Nov/2018 12:12:21] "GET /favicon.ico HTTP/1.1" 404 - 127.0.0.1 - - [23/Nov/2018 12:12:54] "POST /search4 HTTP/1.1" 200 - 127.0.0.1 - - [23/Nov/2018 12:12:54] "GET /static/hf.css HTTP/1.1" 404 - 127.0.0.1 - - [23/Nov/2018 12:12:54] "GET /favicon.ico HTTP/1.1" 404 - 127.0.0.1 - - [23/Nov/2018 12:13:19] "POST /search4 HTTP/1.1" 200 - 127.0.0.1 - - [23/Nov/2018 12:13:19] "GET /static/hf.css HTTP/1.1" 404 - 127.0.0.1 - - [23/Nov/2018 12:13:30] "POST /search4 HTTP/1.1" 200 - 127.0.0.1 - - [23/Nov/2018 12:13:30] "GET /static/hf.css HTTP/1.1" 404 - 127.0.0.1 - - [23/Nov/2018 12:13:35] "GET /search4 HTTP/1.1" 405 - 127.0.0.1 - - [23/Nov/2018 12:13:36] "GET / HTTP/1.1" 200 - 127.0.0.1 - - [23/Nov/2018 12:13:36] "GET /viewlog HTTP/1.1" 200 - 127.0.0.1 - - [23/Nov/2018 12:13:36] "GET /favicon.ico HTTP/1.1" 404 - 127.0.0.1 - - [23/Nov/2018 12:13:37] "GET /viewlog HTTP/1.1" 200 - C-c C-c$
HTML
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