flask-boilerplate/app/views/main.py

from flask import render_template
from app import app


@app.route('/')
@app.route('/index')
def index():
    return render_template('index.html', title='Home')


@app.route('/about')
def about():
    return render_template('about.html', title='About')


@app.route('/contact')
def contact():
    return render_template('contact.html', title='Contact')