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AlwaysTruthy | bool is equivalent to AlwaysTruthy | Literal[False]

bugSomething isn't workingSomething isn't working

set-theoretic typesunions, intersections and moreunions, intersections and more

Status: Open.

#216 In astral-sh/ty;

· AlexWaygood opened on Jan 15, 2025

Check the return type of dunder methods

runtime semanticsAccurate modeling of how Python's semantics work at runtimeAccurate modeling of how Python's semantics work at runtime

Status: Open.

#196 In astral-sh/ty;

· MichaReiser opened on Feb 19, 2025

Warn about too old python-version

configurationRelated to settings and configurationRelated to settings and configuration

Status: Open.

Feature

#201 In astral-sh/ty;

· MichaReiser opened on Feb 11, 2025

tuple & AlwaysFalsy should simplify to tuple[()]

bugSomething isn't workingSomething isn't working

set-theoretic typesunions, intersections and moreunions, intersections and more

type propertiessubtyping, assignability, equivalence, and moresubtyping, assignability, equivalence, and more

Status: Open.

#215 In astral-sh/ty;

· AlexWaygood opened on Jan 16, 2025

Auto-import should have some rudimentary support for evaluating conditionals

completionsBugs or features relating to autocomplete suggestionsBugs or features relating to autocomplete suggestions

serverRelated to the LSP serverRelated to the LSP server

Status: Open.

#1754 In astral-sh/ty;

· BurntSushi opened on Dec 4, 2025

Non deterministic diagnostics

bugSomething isn't workingSomething isn't working

Status: Open.

Bug

#1670 In astral-sh/ty;

· MichaReiser opened on Nov 28, 2025

Auto Import: Add support for namespace packages

completionsBugs or features relating to autocomplete suggestionsBugs or features relating to autocomplete suggestions

importsModule resolution, site-packages discovery, import-related diagnosticsModule resolution, site-packages discovery, import-related diagnostics

serverRelated to the LSP serverRelated to the LSP server

Status: Open.

Feature

#2273 In astral-sh/ty;

· Zhmjharmgal opened on Dec 30, 2025

Non-deterministic overload matching failure

bugSomething isn't workingSomething isn't working

Status: Open.

#1389 In astral-sh/ty;

· mtshiba opened on Oct 17, 2025

Support functools.partial

Status: Open.

Feature

#1536 In astral-sh/ty;

· carljm opened on Nov 13, 2025

Advanced TypedDict support

conformance

typeddict

typing semanticstyping-module features, spec compliance, etctyping-module features, spec compliance, etc

Status: Open.

Feature

#154 In astral-sh/ty;

· carljm opened on Mar 26, 2025

Is there some way we can support setuptools-style editable installs?

importsModule resolution, site-packages discovery, import-related diagnosticsModule resolution, site-packages discovery, import-related diagnostics

Status: Open.

#475 In astral-sh/ty;

· pythonweb2 opened on May 21, 2025

Improve diagnostics (and documentation) for unresolved imports caused by editable installs that use setuptools as their build backend

importsModule resolution, site-packages discovery, import-related diagnosticsModule resolution, site-packages discovery, import-related diagnostics

Status: Open.

#585 In astral-sh/ty;

· SoftwareApe opened on Jun 5, 2025

Autocomplete prioritizes nested classes over properties

completionsBugs or features relating to autocomplete suggestionsBugs or features relating to autocomplete suggestions

serverRelated to the LSP serverRelated to the LSP server

Status: Open.

#2029 In astral-sh/ty;

· steved-stripe opened on Dec 17, 2025

Add option to limit auto-import completions to direct dependencies

completionsBugs or features relating to autocomplete suggestionsBugs or features relating to autocomplete suggestions

serverRelated to the LSP serverRelated to the LSP server

Status: Open.

Feature

#2366 In astral-sh/ty;

· BurntSushi opened on Jan 6, 2026

Reconsider whether showing sub-types (for an LSP type hierarchy request) should include the entire environment or just first party code

questionAsking for support or clarificationAsking for support or clarification

serverRelated to the LSP serverRelated to the LSP server

Status: Open.

Feature

#2958 In astral-sh/ty;

· BurntSushi opened on Mar 4, 2026

Make it easier for users to select rules based on strictness (profiles, rule categories)

serverRelated to the LSP serverRelated to the LSP server

Status: Open.

#2129 In astral-sh/ty;

· OEvortex opened on Dec 20, 2025

Server: Mono-repo support

serverRelated to the LSP serverRelated to the LSP server

Status: Open.

Feature

#2410 In astral-sh/ty;

· MichaReiser opened on May 25, 2025

Change Type::member to return a Result and rename it to try_member

internalAn internal refactor or improvementAn internal refactor or improvement

Status: Open.

Task

#194 In astral-sh/ty;

· MichaReiser opened on Feb 21, 2025

Renaming in non first-party files

serverRelated to the LSP serverRelated to the LSP server

Status: Open.

Feature

#3370 In astral-sh/ty;

· MichaReiser opened on Apr 28, 2026

Display of overloaded definitions

diagnosticsRelated to reporting of diagnostics.Related to reporting of diagnostics.

needs-designNeeds further design before implementationNeeds further design before implementation

overloads

Status: Open.

#102 In astral-sh/ty;

· dhruvmanila opened on May 1, 2025

improve diagnostics for C extension modules without stubs

diagnosticsRelated to reporting of diagnostics.Related to reporting of diagnostics.

importsModule resolution, site-packages discovery, import-related diagnosticsModule resolution, site-packages discovery, import-related diagnostics

Status: Open.

#487 In astral-sh/ty;

· johnniemorrow opened on May 22, 2025

improve diagnostics for other sources of failed calls to overloaded routines

callsIssues relating to call-signature checking and diagnosticsIssues relating to call-signature checking and diagnostics

diagnosticsRelated to reporting of diagnostics.Related to reporting of diagnostics.

overloads

Status: Open.

#409 In astral-sh/ty;

· BurntSushi opened on May 15, 2025

improve diagnostic context for unsupported-operator

diagnosticsRelated to reporting of diagnostics.Related to reporting of diagnostics.

Status: Open.

#391 In astral-sh/ty;

· carljm opened on May 14, 2025

Enable LRU for parsed_module, semantic_index and maybe more queries

memoryrelated to memory usagerelated to memory usage

Status: Open.

#789 In astral-sh/ty;

· MichaReiser opened on Jul 9, 2025

ty fails to lookup relative imports if the relative path from the nearest import root includes an invalid module name

importsModule resolution, site-packages discovery, import-related diagnosticsModule resolution, site-packages discovery, import-related diagnostics

Status: Open.

#839 In astral-sh/ty;

· MichaReiser opened on Jul 17, 2025