ty 0.0.10

on Python PyPI

Release Notes

Released on 2026-01-07.

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