flask — Easy Playground

Lightweight micro-framework for web apps and APIs with Jinja2 templates

Getting started with flaskRun locally

Install

pip install flask

Python CodeRun locally

# Install: pip install flask
from flask import Flask

app = Flask(__name__)

@app.route("/")
def hello():
    return "Hello, World!"

@app.route("/user/<name>")
def user(name):
    return f"Hello, {name}!"

if __name__ == "__main__":
    app.run(debug=True)

# Install: pip install flask
from flask import Flask

app = Flask(__name__)

@app.route("/")
def hello():
    return "Hello, World!"

@app.route("/user/<name>")
def user(name):
    return f"Hello, {name}!"

if __name__ == "__main__":
    app.run(debug=True)

Expected Output

# Expected output shown below
# (Run locally with: flask)

flask is a third-party package. Lightweight micro-framework for web apps and APIs with Jinja2 templates. Install with: pip install flask

Challenge

Try modifying the code above to explore different behaviors. Can you extend the example to handle a new use case?

View all Easy examples for flask