Flask Commands | Python | Speed Codes

Flask is a popular and lightweight Python web framework that allows you to easily create web applications. In this article, we will explore some of the essential Flask commands that every Python programmer should know to speed up their coding process.

Installation

To install Flask, you can use pip, the Python package manager. Simply run the following command in your terminal:

pip install Flask

Creating a Flask App

Once Flask is installed, you can create a new Flask app by running the following command:

flask run

This command will start a development server on your local machine, allowing you to test and debug your Flask application.

Routes

In Flask, routes are used to map URLs to Python functions. You can define a new route using the @app.route() decorator. Here’s an example:


@app.route('/')
def home():
return 'Hello, World!'


In this example, the home() function will be called when a user visits the root URL of your Flask app.

Debug Mode

Flask has a built-in debug mode that helps you to quickly identify and fix any errors in your code. To enable debug mode, simply set the FLASK_DEBUG environment variable to 1 before running your Flask app:

export FLASK_DEBUG=1

Conclusion

Flask commands are essential for any Python programmer looking to build web applications quickly and efficiently. By using these commands, you can speed up your coding process and focus on building awesome web apps with Flask.

Happy coding!