how to use Flask code example
Example 1: 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 2: flask how to run app
$ export FLASK_APP=hello.py
$ python -m flask run
* Running on http://127.0.0.1:5000/
Example 3: python flask
from flask import Flask
app = Flask(__name__)
@app.route('/')
def index():
return "Hello world!" #if you want to render a .html file,
# import render_template from flask and use
#render_template("index.html") here.
if __name__ == '__main__':
app.debug = True
app.run() #go to http://localhost:5000/ to view the page.
Example 4: flask.pocoo.org quickstart
from flask import Flask
app = Flask(__name__)
@app.route('/')
def hello_world():
return 'Hello, World!'
Example 5: python basic flask app
# Imports necessary libraries
from flask import Flask
# Define the app
app = Flask(__name__)
# Get a welcoming message once you start the server.
@app.route('/')
def home():
return 'Home sweet home!'
# If the file is run directly,start the app.
if __name__ == '__main__':
app.run(Debug=True)
# To execute, run the file. Then go to 127.0.0.1:5000 in your browser and look at a welcoming message.
Example 6: default flask app
from flask import Flask
app = Flask(__name__)
@app.route('/')
def index():
return 'Flask'