Python
Develop applications and automation scripts with Python. Articles span beginner syntax to advanced libraries used in DevOps and beyond.
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Python 3.15 Made UTF-8 the Default. We Ran 13 Cases in Seven Linux Locales to See What Changes
Python 3.15 turns on UTF-8 mode everywhere. With container locale settings, none of our 13 encoding cases changed. On a UTF-8 server, only stdin and stdout changed. On a legacy-locale host, almost everything did, and the PYTHONUTF8=0 opt-out dropped LC_ALL=C processes to ASCII.
From DNS to Delivery: Building Transactional Email with SMTPFast
Connect a domain, send a FastAPI receipt through SMTPFast, trace delivery beyond the 200 response, and verify signed webhooks end to end.
How do I Get Flask to Run on Port 80?
Running Flask on port 80 requires special permissions since port 80 is a privileged port. Learn the different approaches to running Flask on port 80, from using sudo to setting up reverse proxies with Nginx.
Why Python open() Does Not Create a File If It Doesn't Exist
Learn why open() in read mode fails on non-existent files, which modes create files automatically, and how to handle file creation properly in Python.
Lightweight Alternatives to Python Twisted for Async Networking
Explore modern, lightweight alternatives to Twisted for building asynchronous network applications in Python, including asyncio, aiohttp, Trio, and more.
Finding Local IP Addresses Using Python's stdlib
Learn how to find the local IP address of your machine using only Python's standard library. No third-party packages required.
What Is the Quickest Way to HTTP GET in Python?
Need to make a quick HTTP GET request in Python? Here's how to do it with standard libraries and third-party tools, including pros and tradeoffs.