from flask import Flask, render_template

app = Flask(__name__)

@app.route("/")
def index():
    headline = "Witaj z rana"
    return render_template("index.html", headline=headline)

@app.route("/papa")
def papa():
    headline = "no to papa!"
    return render_template("index.html", headline=headline)
from flask import Flask, render_template

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