Grigore showed that Java generics are Turing complete by describing a reduction from Turing machines to Java subtyping. We apply Grigore's algorithm to Python type hints and deduce that they are Turing complete. In addition, we present an alternative redu... (more…)

A fun-to-play standard tic tac toe for two human players, both at the same device using Python script - Raghav332004/Tic-Tac-Toe... (more…)

The official home of the Python Programming Language... (more…)

In this step-by-step tutorial, you'll learn what Python descriptors are and how they're used in Python's internals. You'll learn about the descriptor protocol and how the lookup chain works when you access an attribute. You'll also see a few practical exa... (more…)

The challenge Create a function that takes a positive integer and returns the next bigger number that can be formed by rearranging its digits. For example: If the digits can’t be rearranged to form a bigger number, return -1 (or nil in Swift): Test cases ... (more…)