ty-types

library0.0.49pypypiunverified

A CLI tool and JSON-RPC server that exposes Python type inference from the 'ty' library. It provides structured type descriptors, callable signature extraction, and support for generics, TypeVar bounds, and ParamSpec. Current version 0.0.31, updated frequently.

type-stubs serialization

pip install ty-types

github ↗package ↗

INSTALL

IMPORT

SIG · TY-TYPES

ty-types

type-stubspythonv0.0.49

Install

1.8s avg

Import

—

Disk

16MB

Pass rate

5/ 10

Env Coverage5 / 10

glibc

3.9–3.13

musl

3.9–3.13

Install & Compatibility

Where this runs

tested against v0.0.49 · pip install

no network on importno background threads

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

py 3.10–3.95 runs

build_error

glibc

py 3.10–3.95 runs

installs and imports cleanly · install 1.8s · import 0.000s · 19MB

16MB installed

● package 16MB

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

TypeDescriptor

✓ from ty_types import TypeDescriptor

✗ from ty_types import TypeDescriptor

Quickstart: import TypeDescriptor and infer types. Also see CLI: `ty-types` command.

from ty_types import TypeDescriptor import os # Infer type of a Python expression expr = '1 + 2' # Replace with actual source code or file path td = TypeDescriptor(expr) # The descriptor will fetch type from 'ty' library print(td) # For JSON-RPC server, use: python -m ty_types.server

ty-types --version

Debug

Known issues

deprecatedThe old `ide_support` module has been removed; use `direct_call` bindings instead.

fix

Replace any imports from `ty_types.ide_support` with `ty_types.direct_call`.

affects: <0.0.19

breakingGeneric descriptors now always serialize type parameters; serialization format changed in 0.0.19.

fix

Update consumers of serialized type data to expect `typeParameters` field always present (even if empty).

affects: >=0.0.19

gotchaThe JSON-RPC server requires Python 3.8 or later; some advanced type features (like ParamSpec) need Python 3.10+.

fix

Ensure runtime environment matches Python version requirements in your project.

affects: >=0.0.31

Upgrade

Version history

0.0.49latest on PyPI · released Jun 12, 2026

Audit

Dependencies

tyrequiredCore type inference engine

Agent activity

28 hits · last 30 days

node

Amazon

OpenAI (training)

Resources

githubhttps://github.com/openrewrite/ty-types ↗

packagehttps://pypi.org/project/ty-types/ ↗