Flask quickstart

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()

Source: flask.palletsprojects.com

Flask how to run app

$ export FLASK_APP=hello.py
$ python -m flask run
 * Running on http://127.0.0.1:5000/

Source: flask.palletsprojects.com

Flask.pocoo.org quickstart

from flask import Flask
app = Flask(__name__)

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

Source: flask.palletsprojects.com

Flask quickstart

from flask import Flask

app = Flask(__name__)

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

Source: flask.palletsprojects.com

Similar codes

2 votes267 views1 answer
Flask session timeout
Python Flask
1 vote315 views2 answers
Run flask app windows
Python Flask
10 votes271 views6 answers
Flask – Environment
Python Flask
0 vote262 views2 answers
Flask get summernote text
Python Flask
0 vote255 views1 answer
Shutdown flask server with request
Python Flask
2 votes254 views3 answers
Run flask in debug mode
Python Flask
1 vote258 views3 answers
Python venv flask
Python Flask
0 vote240 views1 answer
Flask mongoengine getting started
Python Flask
0 vote285 views1 answer
Flask admin forgeign keys show literal
Python Flask
3 votes250 views1 answer
Flask delete cookie stackoverflow
Python Flask