from flask import Flask code example
Example 1: debug flask powershel
$env:FLASK_ENV = "development"
Example 2: install flask
pip install flask
Example 3: simple flask app
# Extremely simple flask application, will display 'Hello World!' on the screen when you run it
# Access it by running it, then going to whatever port its running on (It'll say which port it's running on).
from flask import Flask
app = Flask(__name__)
@app.route('/')
def hello_world():
return 'Hello, World!'
if __name__ == '__main__':
app.run()
Example 4: flask how to run app
$ export FLASK_APP=hello.py
$ python -m flask run
* Running on http://127.0.0.1:5000/
Example 5: get arguments from url flask
from flask import request
@app.route(...)
def login():
username = request.args.get('username')
password = request.args.get('password')
Example 6: flask.pocoo.org quickstart
from flask import Flask
app = Flask(__name__)
@app.route('/')
def hello_world():
return 'Hello, World!'