ty 0.0.2

on Python PyPI

Release Notes

Released on 2025-12-16.

This is the first Beta release of ty, which we're now ready to recommend to motivated users for
production use. See our blog post for more details.

LSP server

• Improve display of completions to show actual insertion text (#21988)
• Improve highlighting of special type syntax in hovers (#22005)
• Improve syntax highlighting of constants (#22006)

Core type checking

• Infer precise types for isinstance(…) calls involving type variables (#21999)
• Infer TypeVar specializations for Callable types (#21551)
• Propagate classmethod-ness through decorators returning Callables (#21958)
• Improve rendering of default values for function args (#22010)
• Don't use implicit superclass annotation when converting a class constructor into a Callable (#22011)

Other

• Type checking performance improvement (#22000)

Contributors

• @sharkdp
• @carljm
• @Gankra
• @BurntSushi
• @dcreager
• @MichaReiser

Install ty 0.0.2

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://github.com/astral-sh/ty/releases/download/0.0.2/ty-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://github.com/astral-sh/ty/releases/download/0.0.2/ty-installer.ps1 | iex"

Download ty 0.0.2