Python is a versatile language that you can use on the backend, frontend, or full stack of a web application. In this tutorial, we’ll be creating a Python website with Flask, authentication, and a database.
First, we’ll install Flask. We can do this by running the following command in our terminal:
pip install flask
We’ll also need to install a database driver. For this tutorial, we’ll be using MySQL. We can install MySQL by running the following command:
sudo apt-get install mysql-server
Once we have Flask and MySQL installed, we can create a new Python file called “main.py”. This will be our main file for our website.
Next, we’ll import the necessary modules into our file. We’ll need the Flask module, the MySQL module, and the os module. We can import these modules by running the following code:
import flask
import MySQLdb
import os
Next, we’ll create a Flask app. We can do this by running the following code:
app = flask.Flask(__name__)
Next, we’ll set up our database connection. We can do this by running the following code:
db = MySQLdb.connect(host=’localhost’, user=’root’, passwd=’password’, db=’test’)
Next, we’ll create a route for our website. We can do this by running the following code:
@app.route(‘/’)
def index():
return ‘Hello, World!’
Next, we’ll create a route for our login page. We can do this by running the following code:
@app.route(‘/login’)
def login():
return ‘Please login to view the content.’
Next, we’ll create a route for our home page. We can do this by running the following code:
@app.route(‘/’)
def home():
if ‘username’ in os.environ and ‘password’ in os.environ:
# If the user is logged in, we’ll redirect them to the home page
return ‘Hello, ‘ + os.environ[‘username’] + ‘!’
else:
# If the user is not logged in, we’ll redirect them to the login page
