History

David Peter a9be810c38 [ty] Type inference for `@asynccontextmanager` (#21876 ) ## Summary This PR adds special handling for `asynccontextmanager` calls as a temporary solution for https://github.com/astral-sh/ty/issues/1804. We will be able to remove this soon once we have support for generic protocols in the solver. closes https://github.com/astral-sh/ty/issues/1804 ## Ecosystem ```diff + tests/test_downloadermiddleware.py:305:56: error[invalid-argument-type] Argument to bound method `download` is incorrect: Expected `Spider`, found `Unknown \| Spider \| None` + tests/test_downloadermiddleware.py:305:56: warning[possibly-missing-attribute] Attribute `spider` may be missing on object of type `Crawler \| None` ``` These look like true positives ```diff + pymongo/asynchronous/database.py:1021:35: error[invalid-assignment] Object of type `(AsyncClientSession & ~AlwaysTruthy & ~AlwaysFalsy) \| (_ServerMode & ~AlwaysFalsy) \| Unknown \| Primary` is not assignable to `_ServerMode \| None` + pymongo/asynchronous/database.py:1025:17: error[invalid-argument-type] Argument to bound method `_conn_for_reads` is incorrect: Expected `_ServerMode`, found `_ServerMode \| None` ``` Known problems or true positives, just caused by the new type for `session` ```diff - src/integrations/prefect-sqlalchemy/prefect_sqlalchemy/database.py:269:16: error[invalid-return-type] Return type does not match returned value: expected `Connection \| AsyncConnection`, found `_GeneratorContextManager[Unknown, None, None] \| _AsyncGeneratorContextManager[Unknown, None] \| Connection \| AsyncConnection` + src/integrations/prefect-sqlalchemy/prefect_sqlalchemy/database.py:269:16: error[invalid-return-type] Return type does not match returned value: expected `Connection \| AsyncConnection`, found `_GeneratorContextManager[Unknown, None, None] \| _AsyncGeneratorContextManager[AsyncConnection, None] \| Connection \| AsyncConnection` ``` Just a more concrete type ```diff - src/prefect/flow_engine.py:1277:24: error[missing-argument] No argument provided for required parameter `cls` - src/prefect/server/api/server.py:696:49: error[missing-argument] No argument provided for required parameter `cls` - src/prefect/task_engine.py:1426:24: error[missing-argument] No argument provided for required parameter `cls` ``` Good ## Test Plan * Adapted and newly added Markdown tests * Tested on internal codebase		2025-12-09 22:49:00 +01:00
..
README.md	[ty] mdtests with external dependencies (#20904 )	2025-12-08 11:44:20 +01:00
attrs.md	[ty] mdtests with external dependencies (#20904 )	2025-12-08 11:44:20 +01:00
numpy.md	[ty] mdtests with external dependencies (#20904 )	2025-12-08 11:44:20 +01:00
pydantic.md	[ty] mdtests with external dependencies (#20904 )	2025-12-08 11:44:20 +01:00
pytest.md	[ty] mdtests with external dependencies (#20904 )	2025-12-08 11:44:20 +01:00
sqlalchemy.md	[ty] Infer type variables within generic unions (#21862 )	2025-12-09 16:22:59 +01:00
sqlmodel.md	[ty] Type inference for `@asynccontextmanager` (#21876 )	2025-12-09 22:49:00 +01:00
strawberry.md	[ty] mdtests with external dependencies (#20904 )	2025-12-08 11:44:20 +01:00

README.md

mdtests with external dependencies

This directory contains mdtests that make use of external packages. See the mdtest README.md for more information.