What is Flask ?

Flask Vs Django

Stack Overflow Questions Flask vs. Django

Installing Flask

$ python -m pip --version
pip install -U Flask

Now Let’s Check a Simple Flask App

from flask import Flask
app = Flask(__name__)

def hello_world():
return 'Hello World'

if __name__ == '__main__':
  1. First we imported the Flask
  2. Create app, that hosts the application
  3. Then you need a route that calls a Python function. A route maps what you type in the browser (the url) to a Python function
  4. The function should return something to the web browser,
  5. (app.run()) This is Python for “if this script is run directly then start the application”.

Command Line

$ env FLASK_APP=hello.py flask run
* Serving Flask app "hello"
* Running on (Press CTRL+C to quit)
Hey !! That’s it You have executed your first Flask Program




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Akash Varun

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