ty 0.0.6

on Python PyPI

Release Notes

Released on 2025-12-23.

Bug fixes

• FIx panic from unexpanded type aliases in implicit tuple aliases (#22015)
• Support type[T] where T is a type alias to a union of types (#22115)
• Support == narrowing for tuples in unions with disjoint types (#22129)
• Respect debug text interpolation in f-strings (#22151)
• Fix panic from unstable union-type ordering in fixed-point iteration (#22070)

LSP server

• Add ty.configuration and ty.configurationFile options (#22053)
• Add diagnosticMode: off to disable diagnostics while retaining Go To Definition, etc. (#22073)
• Set flag to avoid type[T@f] being inserted when you double-click on the inlay (#22139)
• Use Markdown for completions documentation if the LSP client supports it (#21752)

CLI

• Abort printing diagnostics when pressing Ctrl+C (#22083)

Configuration

• Add respect-type-ignore-comments configuration option (#22137)
• Support custom builtins via __builtins__.pyi (#22021)

Other changes

• Bind self with instance in __get__ (#22155)
• Support type inference between protocol instances (#22120)
• Synthesize a precise _fields attribute for NamedTuples (#22163)
• Synthesize a precise _replace method for NamedTuples (#22153)
• Narrow "tagged unions" of TypedDicts (#22104)

Contributors

• @mtshiba
• @charliermarsh
• @Wizzerinus
• @oconnor663
• @MichaReiser
• @ibraheemdev
• @MatthewMckee4

Install ty 0.0.6

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://github.com/astral-sh/ty/releases/download/0.0.6/ty-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://github.com/astral-sh/ty/releases/download/0.0.6/ty-installer.ps1 | iex"

Download ty 0.0.6