A guide for solving module importing errors that we face when different Python versions are installed in the same system.

The joy of version control

Concerns over the performance of programs written in Python are often
overstated — for some use cases, at least. But there is no getting around
the problem imposed by the infamous global interpreter lock (GIL), which
severely limits the concurrency of multi…

Django templates have many built-in tags and filters to render content, but they may not meet all your needs. This tutorial covers how to write Django custom template tags and filters, including simple tags, inclusion tags, block tags, and different types…

Deploy your database and develop powerful applications with unprecedented ease with a cloud-native Cassandra-as-a-Service built on Apache Cassandra

In this step-by-step tutorial, you'll learn what Python Zip applications are and how to create them quickly using the zipapp module from the standard library. You'll also learn some alternative tools you can use to build this kind of application manually.

The official home of the Python Programming Language

The interviewer asked me if I know what immutable variables are. I answered no and he asked me to type a code that changed one element in a...

dict keeps insertion order since Python 3.6 (see this).
OrderedDict was developed just for this purpose (before Python 3.6).
Since Python 3.6, is the key order always the same for dict or OrderedDi...

The new structural pattern matching feature in Python 3.10 is a very welcome feature. Is there a way to match inequalities using this statement? Prototype example:
match a:
case < 42:

To understand complex code, it can be helpful to remove abstractions, even if it results in larger functions. This episode walks through a process I use to refactor code that I need to debug and fix, but don't completely understand.

Optimizing Python with FunctionTrace

Get full visibility—without setting up three tools. The platform trusted by developers using Rails, Django, and more.

In this introductory Python course, you'll learn how to take user input from the keyboard with the built-in function input() and how to display output to the console with the built-in function print().

Have you wanted to generate PDFs from your Python project? Many of the current libraries require designing the document down at the pixel level. Would you be interested in a tool that lets you specify the page layout while it handles the specific details…

We’ve spent some time recently thinking about the future of Pyston, our faster implementation of Python, and wanted to share what’s on our mind. For updates please check out our wiki. R…

TL;DR The upcoming Pants 2.8 release has greatly improved support for packaging Python distributions (sdists and wheels), including native extensions, by leveraging PEP 517. Pants has industry-leading support for Python builds - covering steps such as resolving…

This week we welcome Tzu-ping Chung (@uranusjr) as our PyDev of the Week! Tzu-ping is a member of Python Packaging Authority (PyPA) and a maintainer of

> TL;DR Pants makes it easy and efficient to incrementally build and deploy
multiple Docker images from a single repo, with a single command. Each image can
consist of a shared base image plus a single PEX (Python EXecutable) file
containing all the code…

There’s a feature request to add a <a href="https://github.com/nedbat/coveragepy/issues/691" rel="external noopener">per-file threshold</a> to coverage.py. I didn’t add the feature, I wrote a proof-of-concept: <a href="https://github.com/nedbat/coveragep…