Python Icon


Python is a dynamically typed programming language.
203 Stories
All Topics

Tidelift Icon Tidelift

It's the end of Python 2. Are we prepared?

In just a few short months, Python 2 will officially reach the end of its supported life. 💀 This means that anyone building applications in Python will need to have moved to Python 3 if they want to keep getting updates including, importantly, fixes for any security vulnerabilities in the core of Python or in the standard library.

With over 200k Python libraries extant, I have a feeling it’ll be awhile before Python 2 is put out to pasture…

Ned Batchelder

Why your mock doesn’t work

Mocking is a powerful technique for isolating tests from undesired interactions among components. But often people find their mock isn’t taking effect, and it’s not clear why. Hopefully this explanation will clear things up.

Mocking isn’t always the best test isolation technique, but if/when you use it, you might as well use it correctly. Ned’s here to help you do just that.


Hypothesis seeks to automate your test process

This interesting testing tool was pointed out to me by Ned Batchelder when he was on The Changelog.

It combines human understanding of your problem domain with machine intelligence to improve the quality of your testing process while spending less time writing tests.

At its core, Hypothesis is a modern implementation of property based testing, which came out of the Haskell world 20 (!) years ago.

Hypothesis runs your tests against a much wider range of scenarios than a human tester could, finding edge cases in your code that you would otherwise have missed. It then turns them into simple and easy to understand failures that save you time and money compared to fixing them if they slipped through the cracks and a user had run into them instead.


One program written in Python, Go, and Rust

This is a subjective, primarily developer-ergonomics-based comparison of the three languages from the perspective of a Python developer, but you can skip the prose and go to the code samples, the performance comparison if you want some hard numbers, the takeaway for the tl;dr, or the Python, Go, and Rust diffimg implementations.

Not only is this a good way to compare programming languages, but it’s a good way to learn a new language if you’re already familiar with one of the others.

The Changelog The Changelog #351

Maintainer spotlight! Ned Batchelder

In this episode we’re shinning our maintainer spotlight on Ned Batchelder. Ned is one of the lucky ones out there that gets to double-dip — his day job is working on open source at edX, working on the Open edX community team. Ned is also a “single maintainer” of - a tool for measuring code coverage of Python programs. This episode with Ned kicks off the first of many in our maintainer spotlight series where we dig deep into the life of an open source software maintainer. We’re producing this series in partnership with Tidelift. Huge thanks to Tidelift for making this series possible.


Reverse engineering the Dropbox client

Dropbox’ concept is still deceptively simple. Here’s a folder. Put files in it. Now it syncs. Move to another computing device. It syncs. The folder and files are there now too! The amount of work that goes on behind the scenes of such an application is staggering though.

If you’ve ever wondered how Dropbox works, or you’ve always wanted to reverse engineer some code but didn’t know how to get started, read this.

We managed to successfully reverse engineer Dropbox, write decryption and injection tools for it that work with current Dropbox clients based on Python 3.6 releases and successfully reverse engineer features and enable them.

Netflix Technology Blog Icon Netflix Technology Blog

Python at Netflix

From the Netflix Technology Blog on how they’re using Python.

As many of us prepare to go to PyCon, we wanted to share a sampling of how Python is used at Netflix. We use Python through the full content lifecycle, from deciding which content to fund all the way to operating the CDN that serves the final video to 148 million members. We use and contribute to many open-source Python packages, some of which are mentioned below. If any of this interests you, check out the jobs site or find us at PyCon. We have donated a few Netflix Originals posters to the PyLadies Auction and look forward to seeing you all there.

0:00 / 0:00