Your Django project’s startup time impacts how smooth it is to work with. Django has to restart your project every time you run a management command and when runserver reloads. This involves importing all your apps, and thus all the modules that they import.
If you upgrade to Django 4.2, you may see system check warnings like:
I just released django-upgrade 1.13.0. The headline features are some new fixers targeting Django 4.2, which is currently in alpha.
Git hooks are useful for enforcing standards in your repositories. But sometimes, they’re in the way and you gotta skip ’em (locally), such as when writing “WIP” commits, experiments, and even testing hooks. Here are a few techniques for skipping hooks.
The pre-commit framework lists hundreds of hook repositories on its hooks page. You can drop these into your configuration file and get a tool running in seconds. But there are many more tools out there that you might want to use, which you can run with custom configuration.
Since shortly after the launch of my first book, I’ve offered a simple “purchasing power parity” deal: a 50% discount for those outside the top 50 countries by GDP (according to Wikipedia’s table). I really want to make sure my knowledge is accessible by as many people as possible, at a fair price.
POSIX permissions include the execute permission, which allows the file to be executed as a program. The permission can be set for each of the three classes: user, group, and others. So, for example, you can have a file that is executable only by its owning user.
Since December, several of my open source packages have been “lifted” on Tidelift. This means that Tidelift are paying me a portion of their subscription fee for continued, standardized maintenance of these packages. These funds are very appreciated, so thanks to Tidelift subscribers 🫡.
Different filesystems have different case sensitivity, for example:
Here are some potential mistakes made with Django settings that you can avoid.
Here are some Django-related deals for this year’s Black Friday (25th Nov) and Cyber Monday (28th Nov), including my own. For more deals on general Python-related products, see Trey Hunner’s post.
Python 3.11 only made one change to unittest, but it’s a good one: context manager methods. These methods can simplify setup and teardown logic in many cases, such as dynamic use of unittest.mock.
Many Git commands output “advice”, with hints about which commands you could run next. Most notably, git status gives you advice for what to do about files in each state:
There you are, minding your own business, rebasing your branch and… surprise! A merge conflict!
Sometimes error reporting loses details, and you don’t know where an error message comes from. In such cases, I have often found that the fastest way to track down the source is to search through the project and its virtualenv.
pre-commit uses Git’s hook system to run tools when you commit. Unfortunately, Git doesn’t run any hooks when making a commit during a rebase. This can lead to you rebasing a branch and not realizing some code needs fixing, at least not until your CI system runs pre-commit (say, with pre-commit.ci).
Have you ever accidentally committed a bunch of junk created by your OS, like Thumbs.db files from Windows, or .DS_Store files from macOS? Or, have you joined a project, and for one of your first commits, added rules to the .gitignore file for your text editor’s project files? If so, this post is for you! You can avoid such pain or busywork by making a global ignore file.
Imagine you’re part way through making some changes, and you realize that you need to rebase or merge. You can:
Take this code, which prints a shruggy man:
To errr is human, to undo computer can help.
You started a new branch, worked hard on initial commits, and you’re ready to send it for review. You try to push and:
Git hosts offer a “squash merge” option that merges a reviewed branch by combining all its commits into one. This leads to a linear Git history on your main branch, which is easier to understand and refer back to code reviews.
The Git community is gradually moving the default branch name from “master” to “main”, because the term “master” is hurtful to some people as it refers to slavery.
By default, if you mistype a Git command, it will list similar commands that you might have meant:
I just released version 1.11.0 of django-upgrade, a tool for automatically upgrading your Django project code. This release contains a lot of new features and fixes, thanks to new contributors including those at the Djangocon Europe sprints. Let’s look at the top changes.