Recommend Django's built-in test runner for predictable, minimal magic testing; use parameterized for inputs and switch to pytest only when required.
How to switch project type checking from mypy to Astral's ty, including installation, configuration via pyproject.toml, CI GitHub Actions, and pre-commit workarounds.
Practical toolchain and workflows for making Python packages ready for production: reproducible installs, testing, linting, type checking, security scans, CI, and documentation.
Indexing a QuerySet can return nondeterministic rows because slicing does not add ordering, unlike first, which orders by primary key.