Working with files in Python is pretty easy. But there’s a common mistake that can sneak into your code. Not closing the file ...

Official support for free-threaded Python, an experimental JIT, and a smarter installation manager for Windows are among the goodies in Python 3.14. Now in a release candidate.

In Python 3.12, you can use a TypedDict as source of types to hint keyword arguments used in a function. The Unpack variadic generic, introduced in version 3.11, is used for this.