Contributing to Weblate modules

Besides the main repository, Weblate consists of several Python modules. All these follow same structure and this documentation covers them all.

For example, this covers:

Coding guidelines

Any code for Weblate should be written with Security by Design Principles in mind.

Any code should come with documentation explaining the behavior. Don’t forget documenting methods, complex code blocks, or user visible features.

Any new code should utilize PEP 484 type hints. We’re not checking this in our CI yet as existing code does not yet include them.

Git commits should follow Conventional Commits specification.

Running tests

The tests are executed using py.test. First you need to install test requirements:

uv pip install -e '.[dev]'

You can then execute the testsuite in the repository checkout:

py.test

See also

The CI integration is very similar to Weblate testsuite and continuous integration.

Coding standard and linting the code

The code should follow PEP-8 coding guidelines and should be formatted using ruff code formatter.

To check the code quality, you can use ruff, its configuration is stored in pyproject.toml.

The easiest approach to enforce all this is to install pre-commit. The repository contains configuration for it to verify the committed files are sane. After installing it (it is already included in the pyproject.toml) turn it on by running pre-commit install in Weblate checkout. This way all your changes will be automatically checked.

You can also trigger check manually, to check all files run:

pre-commit run --all