hello.py

from flask import Flask, render_template, session, redirect, url_for, flash
from flask_bootstrap import Bootstrap
from flask_moment import Moment
from datetime import datetime
from flask_wtf import Form
from wtforms import StringField, SubmitField, validators
from wtforms.validators import DataRequired
from wtforms.validators import Email




app = Flask(__name__)
app.config['SECRET_KEY'] = 'hard to guess string'

bootstrap = Bootstrap(app)
moment = Moment(app)

class NameForm(Form):
    name = StringField('What is your name?', validators=[DataRequired()])
    email = StringField('What is your UofT Email address?', validators=[Email()])
    submit = SubmitField('Submit')


@app.route('/', methods=['GET', 'POST'])
def index():
    form = NameForm()

    if form.validate_on_submit():
        old_name = session.get('name')
        old_email = session.get('email')

        if old_name is not None and old_name != form.name.data:
            flash('Looks like you have changed your name!')
        if old_email is not None and old_email != form.email.data:
            flash('Looks like you have changed your email!')

        session['name'] = form.name.data
        session['email'] = form.email.data

        if "utoronto" in form.email.data:
            session['utemail'] = True
        else:
            session['utemail'] = False

        return redirect(url_for('index'))
    return render_template('index.html', form=form,
                           name=session.get('name'), email=session.get('email'), utemail=session.get('utemail'))


@app.route('/user/<name>')
def user(name):
    return render_template('user.html', name=name)

@app.errorhandler(404)
def page_not_found(e):
    return render_template('404.html'), 404

@app.errorhandler(500)
def internal_server_error(e):
    return render_template('500.html'), 500


if __name__ == '__main__':
    app.run(debug=True, host='0.0.0.0')