Feedback

Best to do this from memory.

1. Make a dir; set up a venv in this dir, source this venv.
2. Install Flask via pip.
3. Create a hello world app.
4. Run the app.

Here is app.py

from flask import Flask

app = Flask(__name__)

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

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