Functions and classes are the most common things we use in our daily development. We invoke them, pass them around and yet never wonder what makes them so amazing. Well the short answer is **callable ...

In other words, Python is telling you, 'The set object cannot be called like a function by adding () to it'. However, set () should be a perfectly valid built-in function for creating a set from a ...

Learn how Mypy's type checking works with functions and generators. In my last two articles I've described some of the ways Mypy, a type checker for Python, can help identify potential problems with ...