altair - Declarative statistical visualization library for Python... (more…)

PyMOTW-3 is a series of articles written by Doug Hellmann to demonstrate how to use the modules of the Python 3 standard library. It is based on the original PyMOTW series, which covered Python 2.7. See About Python Module of the Week for details includi... (more…)

Optional static typing for Python. Contribute to python/mypy development by creating an account on GitHub. (more…)

Accurately static typing decorators in Python is an icky business. The wrapper function obfuscates type information required to statically determine the types of the parameters and the return values of the wrapped function. Let's write a decorator that re... (more…)

Have you ever abandoned a shopping cart in an online store and gotten a reminder email about it later? Your poor digital cart was stranded on a lonely server somewhere. But fear not, readers — we’re not abandoning you! Welcome to the second half of our in... (more…)