ty
==

`ty <https://github.com/astral-sh/ty>`_ is an extremely fast Python type checker
written in Rust. It performs gradual type checking, validating type annotations
where they exist without requiring full type coverage.

Run Locally
-----------

The mozlint integration of ty can be run using mach:

.. parsed-literal::

   $ mach lint --linter ty <file paths>


Configuration
-------------

ty is configured in the root `pyproject.toml`_ file under the ``[tool.ty]``
section. The exclude patterns from ruff's configuration are also applied to ty
to reduce duplication. For more details on configuration
options, see the `ty documentation`_.

Sources
-------

* `Configuration (YAML) <https://searchfox.org/mozilla-central/source/tools/lint/ty.yml>`_
* `Source <https://searchfox.org/mozilla-central/source/tools/lint/python/ty.py>`_

.. _pyproject.toml: https://searchfox.org/mozilla-central/source/pyproject.toml
.. _ty documentation: https://github.com/astral-sh/ty