Meta’s Rust-powered linter and type checker for Python pairs blazing speed with advanced and innovative features.

What if the tool you’ve been waiting for could not only catch errors in your Python code instantly but also handle millions of lines with lightning speed? Enter Pyrefly, Meta’s latest innovation in ...

Mypy, Pytype, Pyright, and Pyre can help you keep your type-hinted Python code bug-free. Let’s see what each of these useful tools has to offer. In the beginning, Python had no type decorations. That ...

Note: this page may be outdated. If you want to create/use stubs for 3rd party packages, you may want to look at PEP 561 packages. The type checker only needs a stubs file to let programs access a ...

With just four months to go until support ends for Python 2, there are still some developers and projects that haven’t made the switch to Python 3. Python may be attracting new developers at a record ...

Frustrated by programming language shortcomings, Guido van Rossum created Python. With the language now used by millions, Nick Heath talks to van Rossum about Python’s past and explores what’s next.

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 ...

Unlock the full InfoQ experience by logging in! Stay updated with your favorite authors and topics, engage with content, and download exclusive resources. Dany Lepage discusses the architectural ...