The CPython interpreter in Python 3.14 can use a feature in C code that uses tail calls between functions. ... F-strings with superpowers: What’s new in Python 3.14 beta. May 30, 2025 3 mins.

Python 3.14 has a new feature called the template string, or t-string, type. A t-string superficially resembles an f-string, but it’s designed to do something very different.

You can write code and run it directly from the command line. But, Python’s efficiency doesn’t just come from its lack of a compiler dependency. Python makes the debugging of code very easy.