Tighten up your code and identify errors before they occur with mypy. I've been using dynamic languages—Perl, Ruby and Python—for many years. I love the flexibility and expressiveness that such ...

There are many types of errors in Python. No matter where you are in your Python journey, you've most likely faced one or more of these errors. For some, it might be easy to know what's wrong in your ...

Fail fast, fail early — we’ve all heard the motto. Still, it’s frustrating when you’ve written a beautiful piece of code, just to realize that it doesn’t work as you’d expected. That’s where unit ...

The latest version of Python sports powerful pattern matching features, better error reporting, and smarter typing syntax for wrapped functions. Python 3.10, the ...