> For the complete documentation index, see [llms.txt](https://www.advancedpython.net/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://www.advancedpython.net/day-4/activity-4.md). # Activity 4 ## Presentation {% embed url="" %} ## Presentation Video {% embed url="" %} ## Starter Code - index.html ```markup hello, world! Welcome to Activity 4! ``` ## Starter Code - application.py ```python from flask import Flask, render_template app = Flask(__name__) @app.route("/") def index(): return render_template('index.html') ```