hello.py

from flask import Flask, render_template


#Create a Flask Instance
app = Flask(__name__)

#Create a route decorator
@app.route('/')

#def index():
#	return"<h1>Hello World!</h1>"

def index():
	first_name = "John"
	stuff = "This is bold text"

	favorite_pizza = ["Pepperoni", "Cheese", "Mushrooms", 41]
	return render_template("index.html", 
		first_name=first_name,
		stuff=stuff,
		favorite_pizza = favorite_pizza)

# localhost:5000/user/john
@app.route('/user/<name>')

def user(name):
	return render_template("user.html", user_name=name)

#Create Custom Error Pages

#Invalid URL
@app.errorhandler(404)
def page_not_found(e):
	return render_template("404.html"), 404

#Internal Server Error
@app.errorhandler(500)
def page_not_found(e):
	return render_template("500.html"), 500