sudo apt install python3-flask
sudo apt install libapache2-mod-wsgi-py3

sudo a2enmod cgid  

testFlask.py

from flask import Flask
app = Flask(__name__)
 
@app.route('/')
def hello():
    hello = "Hello world"
    return hello
 
if __name__ == "__main__":
    app.run(host='0.0.0.0', port=8080, debug=True)

sudo ufw allow 8080/tcp
python3 testFlask.py

“http:サーバーアドレス:8080” にアクセスして、“Hello world” の表示を確認できれば OK。 —- ===== 本番環境 ===== <file config /etc/apache2/sites-available/flask.conf> LoadModule wsgi_module libexec/apache24/mod_wsgi.so WSGIScriptAlias / /home/www/flask/adapter.wsgi <Directory /home/www/flask/> Require all granted options +Indexes +FollowSymLinks +ExecCGI </Directory> </file> <file config /home/www/flask/adapter.wsgi> import sys sys.path.insert(0, '/home/www/flask') from app import app as application </file> <file config /home/www/flask/app.py> from flask import Flask app = Flask(name) @app.route('/') def hello(): hello = “Hello world” return hello </file> —- サイトの有効化 <code> sudo a2ensite flask </code>