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

1 vote208 views2 answers
Flask bootstrap
Python Flask
0 vote210 views1 answer
Python update flask
Python Flask
26 votes327 views6 answers
Flask run
Python Flask
1 vote161 views1 answer
Python flask display variable in html
Python Flask
5 votes245 views3 answers
ImportError: No module named flask
Python Flask
1 vote235 views1 answer
Debug flask powershel
Python Flask
0 vote210 views2 answers
How to get value from txtbox in flask
Python Flask
0 vote210 views1 answer
Flask No application found. Either work inside a view function or push an application context
Python Flask
0 vote240 views1 answer
Flask wtforms multiple select
Python Flask
0 vote158 views1 answer
Flask download pandas dataframe as csv
Python Flask