auth.py

from flask import Blueprint,render_template

auth = Blueprint('auth',__name__)

@auth.route('/login')
def login():
    return render_template('login.html',data_from_backend='testing data from backend')

@auth.route('/sign-up')
def singin():
    return render_template('sign_up.html')

@auth.route('/logout')
def logout():
    return "<h2>Logout</h2>"