Commenting your code is good practice if you want to help other people understand what you’ve written. This makes it crucial to learn how to comment in Python if you work on a big team.

The CPython interpreter in Python 3.14 can use a feature in C code that uses tail calls between functions. When compiled with a C compiler that supports these features, CPython runs slightly faster.

Python 3 files are also UTF-8 by default, but again this can be overridden by including a line such as #encoding: latin1 or #-*-coding: latin1 -*-immediately after the shebang line. Here is how we ...

Quick LinksSet Up Your Development EnvironmentWrite Your First Python ProgramWrite Comments in Your CodeStore Data in ...