Flask is a lightweight Python web microframework. This guide deploys a Flask application in production on Ubuntu 24.04 LTS using Gunicorn as the WSGI server and Nginx as the reverse proxy. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server Python 3.12 and pip installed Nginx installed Step 1 – Set Up […]
Flask is a lightweight Python web framework ideal for microservices, APIs, and small to medium applications. Gunicorn serves Flask in production as a WSGI application server, while Nginx handles SSL, static files, and load balancing. This guide deploys Flask on Ubuntu 26.04 LTS. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS with […]
Learn how to efficiently improve your Flask application performance to improve scalability and responsiveness, ensuring it runs efficiently even under heavy load.
In this tutorial, you’ll build a small blogging system that demonstrates how to build one-to-many relationships using the Flask-SQLAlchemy extension. You’ll have a relationship between posts and comments, where each blog post can have several comments.
*The author selected Apache Software Foundation to receive a donation as part of the Write for DOnations program.* Introduction Flask is a lightweight Python web framework that provides valuable tools and features for creating web applications in the Python Language. SQLAlchemy is an SQL toolkit offering efficient and high-performing relational database access. It provides ways […]
Python-Markdown is a Python library that allows you to convert Markdown text to HTML; it mostly follows the Markdown standard with a few minor differences to the standard Markdown syntax. In this tutorial, you’ll use Flask, SQLite, and Python-Markdown to build a small note-taking web application that supports formatting text using Markdown. The app will allow users to display, create, and format notes with h
In this tutorial, you’ll use Flask and Flask-SQLAlchemy to create an employee management system with a database that has a table for employees. You’ll use the Flask shell to query a table, and get table records based on a column value. You’ll retrieve records on certain conditions. You’ll order the results by a column value, and count and limit query results. Finally, you’ll use pagination to display a certain number of records per page in a web application.
Jinja is the templating language that Flask uses to render HTML templates. Using templates allows you to separate the business logic of your application from the presentation logic. These templates provide many features that are not available in standard HTML, such as variables, if statements, for loops, filters, and template inheritance. This helps with maintenance of HTML pages, and prevents Cross-Site Scripting attacks.
In this guide, we will be setting up a simple Python application using the Flask microframework on Ubuntu 18.04. The bulk of this article will be about how to set up the uWSGI application server to launch the application and how to configure Nginx to act as a front-end reverse proxy.
Flask is a lightweight Python web framework that provides useful tools and features for creating web applications in the Python Language. In this tutorial, you’ll build a small web application with Flask that demonstrates how to use web forms. The application will have a page for displaying messages that are stored in a Python list, and a page for adding new messages. You’ll also use message flashing to inform users of an error when they submit invalid data.
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