astral-sh/ty 0.0.10

on GitHub

Release Notes

Released on 2026-01-07.

Due to an error in our wheel metadata, this release was partially published to PyPI and manually finished. Consequently, PyPI temporarily did not include all of the artifacts and the GitHub Release was published by a maintainer instead of GitHub Actions. The artifacts from GitHub Actions were used without alteration. The GitHub release attestations for the artifacts are not available for this release.

Bug fixes

• Fix stack overflow due to too small stack size (#22433)
• Fix stale semantic tokens after opening the same document with new content (#22414)
• Fix handling of ParamSpec in overloaded functions (#22416)
• Fix comparisons and arithmetic with NewTypes of float (#22105)
• Fix several issues with unannotated function return types (#22425)
• Fix handling of subclasses in Callables (#22411)

LSP server

• Add support for explicit markdown code fences in docstring rendering (#22373, #22408)
• Offer completions for T when a value has type Unknown | T (#22436)
• Sort keyword argument completions higher (#22297)

Core type checking

• Add support for @total_ordering (#22181, #22183)
• Better simplification of intersections of tuples (#22094)
• Support comparisons between variable-length tuples (#21824)
• Emit diagnostics for method definitions and other invalid statements in TypedDict class bodies (#22351)
• Improve type-narrowing in calls to len() (#22330)

CLI

• Add --add-ignore CLI option (#21696)

Configuration

• include = ["myscript"] will now check myscript even though it doesn't have a Python extension (#22243)

Performance

• Optimize intersections with a single negated element (#22344)
• Optimize negated types (#22402)

Documentation

• Link to Callable __name__ FAQ directly from unresolved-attribute diagnostic (#22437)

Contributors

• @dhruvmanila
• @charliermarsh
• @oconnor663
• @BurntSushi
• @RasmusNygren
• @carljm
• @Gankra
• @MichaReiser
• @AlexWaygood

Install ty 0.0.10

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://github.com/astral-sh/ty/releases/download/0.0.10/ty-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://github.com/astral-sh/ty/releases/download/0.0.10/ty-installer.ps1 | iex"

Download ty 0.0.10