Flask Web Framework
Flask is a web framework, it’s a Python module that lets you develop web applications easily. It’s has a small and easy-to-extend core: it’s a microframework that doesn’t include an ORM (Object Relational Manager) or such features.
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- python3 -V
- sudo apt install python3-venv
- mkdir flask_app && cd flask_app
- python3 -m venv venv
- source venv/bin/activate
- (venv) $ pip install Flask
- (venv) $ python -m flask --version
- (venv) $ pip freeze
- (venv) $ export FLASK_APP=hello.py
- (venv) $ echo $FLASK_APP
- (venv) $ hello.py # ok
- (venv) $ sudo ufw allow 5000
- (venv) $ flask run --host=0.0.0.0 --port=5000 #run in container
from flask import Flask
app = Flask(__name__)
@app.route("/")
def index():
return "Frank Sinatra"Run Flask app as 0.0.0.0
export FLASK_APP=app.py
echo $FLASK_APP
flask run --host=0.0.0.0 0 --port=3000
Template
from flask import Flask, render_template
app = Flask(__name__)
@app.route("/")
def index():
pagetitle = "HomePage"
return render_template("index.html",
mytitle=pagetitle,
mycontent="Hello World")
myproject/
/app/
/templates/
/index.html
/views.py
index.html
<html>
<head>
<title>{{ mytitle }}</title>
</head>
<body>
<p>{{ mycontent }}</p>
</body>
</html>Reference
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