Cambio nomi di funzione.

app.py

@@ -2,11 +2,11 @@ from flask import Flask, request, render_template
 app = Flask(__name__)
 
 @app.route('/')
-def baseform():
+def index():
     return render_template('modulo.html')
 
 @app.route('/area_rettangolo', methods=['POST'])
-def saluta():
+def rectarea():
     area = int(request.form['base']) * int(request.form['altezza'])
     return render_template('area.html', area_calcolata=area)