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Title: Getting Started with Flask - A Beginner-Friendly Python Web Framework
Introduction:
Flask is a lightweight and beginner-friendly Python web framework that makes it easy to build web applications. It is known for its simplicity, flexibility, and ease of learning. In this tutorial, we'll guide you through the process of setting up a basic Flask application, creating routes, and rendering templates.
Prerequisites:
Step 1: Install Flask
Open your terminal and install Flask using the following command:
Step 2: Create a Flask App
Create a new file, let's call it app.py, and open it in your text editor. In this file, we'll create a simple Flask application.
This code does the following:
Step 3: Run Your Flask App
In the terminal, navigate to the directory containing app.py and run the following command:
Visit http://127.0.0.1:5000/ in your web browser, and you should see the "Hello, World!" message.
Step 4: Create Dynamic Routes
Let's create a dynamic route that takes a parameter from the URL.
Now, when you visit http://127.0.0.1:5000/greet/John, it will display "Hello, John!".
Step 5: Use Templates
Flask allows you to use templates to separate your HTML from your Python code. Create a folder named templates in your project directory and add an HTML file, e.g., index.html.
Update your app.py to render this template:
Now, instead of returning a string, it renders the index.html template with the specified message.
Congratulations! You've successfully created a simple Flask application with dynamic routes and templates. This is just the beginning, and Flask provides many more features to explore as you build more sophisticated web applications.
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