[ty] WIP: sort union types during cycle recovery to stabilize output #21722

mtshiba · 2025-12-01T10:59:03Z

Summary

This PR addresses the issue of non-deterministic execution order of salsa queries causing the order of elements in union types in the output to fluctuate randomly.

We already have a comparison function for sorting union types, union_or_intersection_elements_ordering, but this probably won't solve the problem, since it compares based on salsa IDs rather than the contents of the interned structs.

Instead, we use the structural_type_ordering function, which performs comparisons by deep traversing the type's contents.

Test Plan

…l types

…_impl` method

…-union

astral-sh-bot · 2025-12-01T11:01:24Z

Diagnostic diff on typing conformance tests

No changes detected when running ty on typing conformance tests ✅

astral-sh-bot · 2025-12-01T11:02:58Z

`mypy_primer` results

Changes were detected when running on open source projects

parso (https://github.com/davidhalter/parso)
- parso/python/pep8.py:258:16: warning[possibly-missing-attribute] Attribute `type` may be missing on object of type `Unknown | None | IndentationNode`
+ parso/python/pep8.py:258:16: warning[possibly-missing-attribute] Attribute `type` may be missing on object of type `IndentationNode | None | Unknown`
- parso/python/pep8.py:259:41: warning[possibly-missing-attribute] Attribute `parent` may be missing on object of type `Unknown | None | IndentationNode`
+ parso/python/pep8.py:259:41: warning[possibly-missing-attribute] Attribute `parent` may be missing on object of type `IndentationNode | None | Unknown`
- parso/python/pep8.py:263:17: warning[possibly-missing-attribute] Attribute `indentation` may be missing on object of type `Unknown | None | IndentationNode`
+ parso/python/pep8.py:263:17: warning[possibly-missing-attribute] Attribute `indentation` may be missing on object of type `IndentationNode | None | Unknown`
- parso/python/pep8.py:270:20: warning[possibly-missing-attribute] Attribute `type` may be missing on object of type `Unknown | None | IndentationNode`
+ parso/python/pep8.py:270:20: warning[possibly-missing-attribute] Attribute `type` may be missing on object of type `IndentationNode | None | Unknown`
- parso/python/pep8.py:271:37: warning[possibly-missing-attribute] Attribute `parent` may be missing on object of type `Unknown | None | IndentationNode`
+ parso/python/pep8.py:271:37: warning[possibly-missing-attribute] Attribute `parent` may be missing on object of type `IndentationNode | None | Unknown`
- parso/python/pep8.py:276:16: warning[possibly-missing-attribute] Attribute `type` may be missing on object of type `Unknown | None | IndentationNode`
+ parso/python/pep8.py:276:16: warning[possibly-missing-attribute] Attribute `type` may be missing on object of type `IndentationNode | None | Unknown`
- parso/python/pep8.py:277:41: warning[possibly-missing-attribute] Attribute `parent` may be missing on object of type `Unknown | None | IndentationNode`
+ parso/python/pep8.py:277:41: warning[possibly-missing-attribute] Attribute `parent` may be missing on object of type `IndentationNode | None | Unknown`
- parso/python/pep8.py:290:22: warning[possibly-missing-attribute] Attribute `get_latest_suite_node` may be missing on object of type `Unknown | None | IndentationNode`
+ parso/python/pep8.py:290:22: warning[possibly-missing-attribute] Attribute `get_latest_suite_node` may be missing on object of type `IndentationNode | None | Unknown`
- parso/python/pep8.py:362:17: warning[possibly-missing-attribute] Attribute `type` may be missing on object of type `Unknown | None | IndentationNode`
+ parso/python/pep8.py:362:17: warning[possibly-missing-attribute] Attribute `type` may be missing on object of type `IndentationNode | None | Unknown`
- parso/python/pep8.py:363:37: warning[possibly-missing-attribute] Attribute `parent` may be missing on object of type `Unknown | None | IndentationNode`
+ parso/python/pep8.py:363:37: warning[possibly-missing-attribute] Attribute `parent` may be missing on object of type `IndentationNode | None | Unknown`
- parso/python/pep8.py:385:37: warning[possibly-missing-attribute] Attribute `parent` may be missing on object of type `Unknown | None | IndentationNode`
+ parso/python/pep8.py:385:37: warning[possibly-missing-attribute] Attribute `parent` may be missing on object of type `IndentationNode | None | Unknown`
- parso/python/pep8.py:414:16: warning[possibly-missing-attribute] Attribute `type` may be missing on object of type `Unknown | None | IndentationNode`
+ parso/python/pep8.py:414:16: warning[possibly-missing-attribute] Attribute `type` may be missing on object of type `IndentationNode | None | Unknown`
- parso/python/pep8.py:415:20: warning[possibly-missing-attribute] Attribute `type` may be missing on object of type `Unknown | None | IndentationNode`
+ parso/python/pep8.py:415:20: warning[possibly-missing-attribute] Attribute `type` may be missing on object of type `IndentationNode | None | Unknown`
- parso/python/pep8.py:418:35: warning[possibly-missing-attribute] Attribute `indentation` may be missing on object of type `Unknown | None | IndentationNode`
+ parso/python/pep8.py:418:35: warning[possibly-missing-attribute] Attribute `indentation` may be missing on object of type `IndentationNode | None | Unknown`
- parso/python/pep8.py:419:54: warning[possibly-missing-attribute] Attribute `type` may be missing on object of type `Unknown | None | IndentationNode`
+ parso/python/pep8.py:419:54: warning[possibly-missing-attribute] Attribute `type` may be missing on object of type `IndentationNode | None | Unknown`
- parso/python/pep8.py:431:16: warning[possibly-missing-attribute] Attribute `type` may be missing on object of type `Unknown | None | IndentationNode`
+ parso/python/pep8.py:431:16: warning[possibly-missing-attribute] Attribute `type` may be missing on object of type `IndentationNode | None | Unknown`
- parso/python/pep8.py:432:25: warning[possibly-missing-attribute] Attribute `type` may be missing on object of type `Unknown | None`
+ parso/python/pep8.py:432:25: warning[possibly-missing-attribute] Attribute `type` may be missing on object of type `None | Unknown`
- parso/python/pep8.py:433:41: warning[possibly-missing-attribute] Attribute `parent` may be missing on object of type `Unknown | None | IndentationNode`
+ parso/python/pep8.py:433:41: warning[possibly-missing-attribute] Attribute `parent` may be missing on object of type `IndentationNode | None | Unknown`
- parso/python/pep8.py:436:41: warning[possibly-missing-attribute] Attribute `indentation` may be missing on object of type `Unknown | None | IndentationNode`
+ parso/python/pep8.py:436:41: warning[possibly-missing-attribute] Attribute `indentation` may be missing on object of type `IndentationNode | None | Unknown`
- parso/python/pep8.py:441:51: warning[possibly-missing-attribute] Attribute `indentation` may be missing on object of type `Unknown | IndentationNode | None`
+ parso/python/pep8.py:441:51: warning[possibly-missing-attribute] Attribute `indentation` may be missing on object of type `IndentationNode | None | Unknown`
- parso/python/pep8.py:444:49: warning[possibly-missing-attribute] Attribute `indentation` may be missing on object of type `Unknown | IndentationNode | None`
+ parso/python/pep8.py:444:49: warning[possibly-missing-attribute] Attribute `indentation` may be missing on object of type `IndentationNode | None | Unknown`
- parso/python/pep8.py:449:29: warning[possibly-missing-attribute] Attribute `parent` may be missing on object of type `Unknown | IndentationNode | None`
+ parso/python/pep8.py:449:29: warning[possibly-missing-attribute] Attribute `parent` may be missing on object of type `IndentationNode | None | Unknown`
- parso/python/pep8.py:460:49: warning[possibly-missing-attribute] Attribute `bracket_indentation` may be missing on object of type `Unknown | None | IndentationNode`
+ parso/python/pep8.py:460:49: warning[possibly-missing-attribute] Attribute `bracket_indentation` may be missing on object of type `IndentationNode | None | Unknown`
- parso/python/pep8.py:462:49: warning[possibly-missing-attribute] Attribute `indentation` may be missing on object of type `Unknown | None | IndentationNode`
+ parso/python/pep8.py:462:49: warning[possibly-missing-attribute] Attribute `indentation` may be missing on object of type `IndentationNode | None | Unknown`
- parso/python/pep8.py:464:29: warning[possibly-missing-attribute] Attribute `get_latest_suite_node` may be missing on object of type `Unknown | None | IndentationNode`
+ parso/python/pep8.py:464:29: warning[possibly-missing-attribute] Attribute `get_latest_suite_node` may be missing on object of type `IndentationNode | None | Unknown`
- parso/python/pep8.py:471:36: warning[possibly-missing-attribute] Attribute `type` may be missing on object of type `Unknown | None | IndentationNode`
+ parso/python/pep8.py:471:36: warning[possibly-missing-attribute] Attribute `type` may be missing on object of type `IndentationNode | None | Unknown`
- parso/python/pep8.py:486:40: warning[possibly-missing-attribute] Attribute `type` may be missing on object of type `Unknown | None | IndentationNode`
+ parso/python/pep8.py:486:40: warning[possibly-missing-attribute] Attribute `type` may be missing on object of type `IndentationNode | None | Unknown`
- parso/python/pep8.py:492:42: warning[possibly-missing-attribute] Attribute `type` may be missing on object of type `Unknown | None | IndentationNode`
+ parso/python/pep8.py:492:42: warning[possibly-missing-attribute] Attribute `type` may be missing on object of type `IndentationNode | None | Unknown`
- parso/python/pep8.py:498:42: warning[possibly-missing-attribute] Attribute `type` may be missing on object of type `Unknown | None | IndentationNode`
+ parso/python/pep8.py:498:42: warning[possibly-missing-attribute] Attribute `type` may be missing on object of type `IndentationNode | None | Unknown`
- parso/python/pep8.py:507:40: warning[possibly-missing-attribute] Attribute `type` may be missing on object of type `Unknown | None | IndentationNode`
+ parso/python/pep8.py:507:40: warning[possibly-missing-attribute] Attribute `type` may be missing on object of type `IndentationNode | None | Unknown`
- parso/python/pep8.py:513:42: warning[possibly-missing-attribute] Attribute `type` may be missing on object of type `Unknown | None | IndentationNode`
+ parso/python/pep8.py:513:42: warning[possibly-missing-attribute] Attribute `type` may be missing on object of type `IndentationNode | None | Unknown`
- parso/python/pep8.py:537:24: warning[possibly-missing-attribute] Attribute `type` may be missing on object of type `Unknown | None | IndentationNode`
+ parso/python/pep8.py:537:24: warning[possibly-missing-attribute] Attribute `type` may be missing on object of type `IndentationNode | None | Unknown`
- parso/python/pep8.py:538:41: warning[possibly-missing-attribute] Attribute `parent` may be missing on object of type `Unknown | None | IndentationNode`
+ parso/python/pep8.py:538:41: warning[possibly-missing-attribute] Attribute `parent` may be missing on object of type `IndentationNode | None | Unknown`
- parso/python/pep8.py:541:27: warning[possibly-missing-attribute] Attribute `indentation` may be missing on object of type `Unknown | None | IndentationNode`
+ parso/python/pep8.py:541:27: warning[possibly-missing-attribute] Attribute `indentation` may be missing on object of type `IndentationNode | None | Unknown`

kornia (https://github.com/kornia/kornia)
- kornia/geometry/camera/pinhole.py:179:5: error[invalid-argument-type] Argument to bound method `setter` is incorrect: Expected `(Any, Any, /) -> None`, found `def tx(self, value: Unknown | int | float) -> PinholeCamera`
+ kornia/geometry/camera/pinhole.py:179:5: error[invalid-argument-type] Argument to bound method `setter` is incorrect: Expected `(Any, Any, /) -> None`, found `def tx(self, value: float | int | Unknown) -> PinholeCamera`
- kornia/geometry/camera/pinhole.py:195:5: error[invalid-argument-type] Argument to bound method `setter` is incorrect: Expected `(Any, Any, /) -> None`, found `def ty(self, value: Unknown | int | float) -> PinholeCamera`
+ kornia/geometry/camera/pinhole.py:195:5: error[invalid-argument-type] Argument to bound method `setter` is incorrect: Expected `(Any, Any, /) -> None`, found `def ty(self, value: float | int | Unknown) -> PinholeCamera`
- kornia/geometry/camera/pinhole.py:211:5: error[invalid-argument-type] Argument to bound method `setter` is incorrect: Expected `(Any, Any, /) -> None`, found `def tz(self, value: Unknown | int | float) -> PinholeCamera`
+ kornia/geometry/camera/pinhole.py:211:5: error[invalid-argument-type] Argument to bound method `setter` is incorrect: Expected `(Any, Any, /) -> None`, found `def tz(self, value: float | int | Unknown) -> PinholeCamera`

spack (https://github.com/spack/spack)
- lib/spack/spack/config.py:675:17: error[invalid-assignment] Object of type `ConfigScope` is not assignable to `str | None`
+ lib/spack/spack/config.py:675:17: error[invalid-assignment] Object of type `ConfigScope` is not assignable to `None | str`
- lib/spack/spack/config.py:678:40: error[unresolved-attribute] Object of type `str | None` has no attribute `sections`
+ lib/spack/spack/config.py:678:40: error[unresolved-attribute] Object of type `None | str` has no attribute `sections`
- lib/spack/spack/config.py:678:59: error[unresolved-attribute] Object of type `str | None` has no attribute `sections`
+ lib/spack/spack/config.py:678:59: error[unresolved-attribute] Object of type `None | str` has no attribute `sections`
- lib/spack/spack/config.py:680:47: error[unresolved-attribute] Object of type `str | None` has no attribute `sections`
+ lib/spack/spack/config.py:680:47: error[unresolved-attribute] Object of type `None | str` has no attribute `sections`
- lib/spack/spack/config.py:683:9: error[unresolved-attribute] Object of type `str | None` has no attribute `sections`
+ lib/spack/spack/config.py:683:9: error[unresolved-attribute] Object of type `None | str` has no attribute `sections`
- lib/spack/spack/config.py:685:32: error[unresolved-attribute] Object of type `str | None` has no attribute `sections`
+ lib/spack/spack/config.py:685:32: error[unresolved-attribute] Object of type `None | str` has no attribute `sections`
- lib/spack/spack/config.py:687:9: error[unresolved-attribute] Object of type `str | None` has no attribute `_write_section`
+ lib/spack/spack/config.py:687:9: error[unresolved-attribute] Object of type `None | str` has no attribute `_write_section`
- lib/spack/spack/mirrors/mirror.py:114:16: error[invalid-return-type] Return type does not match returned value: expected `bool`, found `Literal[True] | Unknown | str | Divergent`
+ lib/spack/spack/mirrors/mirror.py:114:16: error[invalid-return-type] Return type does not match returned value: expected `bool`, found `Literal[True] | Unknown | Divergent | str`
- lib/spack/spack/mirrors/mirror.py:120:16: error[invalid-return-type] Return type does not match returned value: expected `bool`, found `Unknown | str | Divergent`
+ lib/spack/spack/mirrors/mirror.py:120:16: error[invalid-return-type] Return type does not match returned value: expected `bool`, found `Unknown | Divergent | str`
- lib/spack/spack/mirrors/mirror.py:263:45: error[invalid-argument-type] Argument to bound method `_update_connection_dict` is incorrect: Expected `dict[Unknown, Unknown]`, found `@Todo | str | Divergent`
+ lib/spack/spack/mirrors/mirror.py:263:45: error[invalid-argument-type] Argument to bound method `_update_connection_dict` is incorrect: Expected `dict[Unknown, Unknown]`, found `Unknown | Divergent | str`
- lib/spack/spack/spec.py:3142:21: warning[possibly-missing-attribute] Attribute `intersects` may be missing on object of type `Unknown | None | ArchSpec`
+ lib/spack/spack/spec.py:3142:21: warning[possibly-missing-attribute] Attribute `intersects` may be missing on object of type `ArchSpec | None | Unknown`
- lib/spack/spack/spec.py:3163:24: warning[possibly-missing-attribute] Attribute `constrain` may be missing on object of type `Unknown | None | ArchSpec`
+ lib/spack/spack/spec.py:3163:24: warning[possibly-missing-attribute] Attribute `constrain` may be missing on object of type `ArchSpec | None | Unknown`
- lib/spack/spack/spec.py:4626:16: warning[possibly-missing-attribute] Attribute `platform` may be missing on object of type `Unknown | None | ArchSpec`
+ lib/spack/spack/spec.py:4626:16: warning[possibly-missing-attribute] Attribute `platform` may be missing on object of type `ArchSpec | None | Unknown`
- lib/spack/spack/spec.py:4630:16: warning[possibly-missing-attribute] Attribute `os` may be missing on object of type `Unknown | None | ArchSpec`
+ lib/spack/spack/spec.py:4630:16: warning[possibly-missing-attribute] Attribute `os` may be missing on object of type `ArchSpec | None | Unknown`
- lib/spack/spack/spec.py:4634:16: warning[possibly-missing-attribute] Attribute `target` may be missing on object of type `Unknown | None | ArchSpec`
+ lib/spack/spack/spec.py:4634:16: warning[possibly-missing-attribute] Attribute `target` may be missing on object of type `ArchSpec | None | Unknown`
- lib/spack/spack/util/gcs.py:92:20: warning[possibly-missing-attribute] Attribute `get_blob` may be missing on object of type `Unknown | None`
+ lib/spack/spack/util/gcs.py:92:20: warning[possibly-missing-attribute] Attribute `get_blob` may be missing on object of type `None | Unknown`
- lib/spack/spack/util/gcs.py:97:20: warning[possibly-missing-attribute] Attribute `blob` may be missing on object of type `Unknown | None`
+ lib/spack/spack/util/gcs.py:97:20: warning[possibly-missing-attribute] Attribute `blob` may be missing on object of type `None | Unknown`
- lib/spack/spack/util/gcs.py:116:25: warning[possibly-missing-attribute] Attribute `list_blobs` may be missing on object of type `Unknown | None`
+ lib/spack/spack/util/gcs.py:116:25: warning[possibly-missing-attribute] Attribute `list_blobs` may be missing on object of type `None | Unknown`
- lib/spack/spack/vendor/jinja2/environment.py:725:10: error[invalid-return-type] Function can implicitly return `None`, which is not assignable to return type `str | CodeType`
+ lib/spack/spack/vendor/jinja2/environment.py:725:10: error[invalid-return-type] Function can implicitly return `None`, which is not assignable to return type `CodeType | str`
- lib/spack/spack/vendor/macholib/MachO.py:411:13: error[unsupported-operator] Operator `+` is unsupported between objects of type `Unknown | None` and `Unknown | None | Literal[0]`
+ lib/spack/spack/vendor/macholib/MachO.py:411:13: error[unsupported-operator] Operator `+` is unsupported between objects of type `None | Unknown` and `Unknown | None | Literal[0]`
- lib/spack/spack/vendor/macholib/MachO.py:419:21: error[unsupported-operator] Operator `+` is unsupported between objects of type `Unknown | None` and `Unknown | None | Literal[0]`
+ lib/spack/spack/vendor/macholib/MachO.py:419:21: error[unsupported-operator] Operator `+` is unsupported between objects of type `None | Unknown` and `Unknown | None | Literal[0]`
- lib/spack/spack/vendor/pyrsistent/_plist.py:22:13: error[invalid-assignment] Object of type `Unknown` is not assignable to attribute `rest` on type `(Unknown & ~AlwaysFalsy) | (_EmptyPList & ~AlwaysFalsy)`
+ lib/spack/spack/vendor/pyrsistent/_plist.py:22:13: error[invalid-assignment] Object of type `Unknown` is not assignable to attribute `rest` on type `(_EmptyPList & ~AlwaysFalsy) | (Unknown & ~AlwaysFalsy)`
- lib/spack/spack/vendor/ruamel/yaml/emitter.py:806:26: warning[possibly-missing-attribute] Attribute `empty` may be missing on object of type `Unknown | None`
+ lib/spack/spack/vendor/ruamel/yaml/emitter.py:806:26: warning[possibly-missing-attribute] Attribute `empty` may be missing on object of type `None | Unknown`
- lib/spack/spack/vendor/ruamel/yaml/emitter.py:807:25: warning[possibly-missing-attribute] Attribute `multiline` may be missing on object of type `Unknown | None`
+ lib/spack/spack/vendor/ruamel/yaml/emitter.py:807:25: warning[possibly-missing-attribute] Attribute `multiline` may be missing on object of type `None | Unknown`

jinja (https://github.com/pallets/jinja)
- tests/test_loader.py:240:17: warning[possibly-missing-attribute] Attribute `get_template` may be missing on object of type `Unknown | None | Environment`
+ tests/test_loader.py:240:17: warning[possibly-missing-attribute] Attribute `get_template` may be missing on object of type `Environment | None | Unknown`
- tests/test_loader.py:244:17: warning[possibly-missing-attribute] Attribute `get_template` may be missing on object of type `Unknown | None | Environment`
+ tests/test_loader.py:244:17: warning[possibly-missing-attribute] Attribute `get_template` may be missing on object of type `Environment | None | Unknown`
- tests/test_loader.py:261:9: warning[possibly-missing-attribute] Attribute `get_template` may be missing on object of type `Unknown | None | Environment`
+ tests/test_loader.py:261:9: warning[possibly-missing-attribute] Attribute `get_template` may be missing on object of type `Environment | None | Unknown`
- tests/test_loader.py:263:16: warning[possibly-missing-attribute] Attribute `loader` may be missing on object of type `Unknown | None | Environment`
+ tests/test_loader.py:263:16: warning[possibly-missing-attribute] Attribute `loader` may be missing on object of type `Environment | None | Unknown`
- tests/test_loader.py:263:16: warning[possibly-missing-attribute] Attribute `module` may be missing on object of type `Unknown | BaseLoader | None`
+ tests/test_loader.py:263:16: warning[possibly-missing-attribute] Attribute `module` may be missing on object of type `BaseLoader | None | Unknown`
- tests/test_loader.py:265:24: warning[possibly-missing-attribute] Attribute `loader` may be missing on object of type `Unknown | None | Environment`
+ tests/test_loader.py:265:24: warning[possibly-missing-attribute] Attribute `loader` may be missing on object of type `Environment | None | Unknown`
- tests/test_loader.py:265:24: warning[possibly-missing-attribute] Attribute `module` may be missing on object of type `Unknown | BaseLoader | None`
+ tests/test_loader.py:265:24: warning[possibly-missing-attribute] Attribute `module` may be missing on object of type `BaseLoader | None | Unknown`
- tests/test_loader.py:282:9: error[invalid-assignment] Object of type `ChoiceLoader` is not assignable to attribute `loader` on type `Unknown | None | Environment`
+ tests/test_loader.py:282:9: error[invalid-assignment] Object of type `ChoiceLoader` is not assignable to attribute `loader` on type `Environment | None | Unknown`
- tests/test_loader.py:283:13: error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `Sequence[BaseLoader]`, found `list[Unknown | BaseLoader | None]`
+ tests/test_loader.py:283:13: error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `Sequence[BaseLoader]`, found `list[BaseLoader | None | Unknown]`
- tests/test_loader.py:283:14: warning[possibly-missing-attribute] Attribute `loader` may be missing on object of type `Unknown | None | Environment`
+ tests/test_loader.py:283:14: warning[possibly-missing-attribute] Attribute `loader` may be missing on object of type `Environment | None | Unknown`
- tests/test_loader.py:285:17: warning[possibly-missing-attribute] Attribute `get_template` may be missing on object of type `Unknown | None | Environment`
+ tests/test_loader.py:285:17: warning[possibly-missing-attribute] Attribute `get_template` may be missing on object of type `Environment | None | Unknown`
- tests/test_loader.py:287:17: warning[possibly-missing-attribute] Attribute `get_template` may be missing on object of type `Unknown | None | Environment`
+ tests/test_loader.py:287:17: warning[possibly-missing-attribute] Attribute `get_template` may be missing on object of type `Environment | None | Unknown`
- tests/test_loader.py:292:9: error[invalid-assignment] Object of type `PrefixLoader` is not assignable to attribute `loader` on type `Unknown | None | Environment`
+ tests/test_loader.py:292:9: error[invalid-assignment] Object of type `PrefixLoader` is not assignable to attribute `loader` on type `Environment | None | Unknown`
- tests/test_loader.py:293:13: error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `Mapping[str, BaseLoader]`, found `dict[Unknown | str, Unknown | BaseLoader | None]`
+ tests/test_loader.py:293:13: error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `Mapping[str, BaseLoader]`, found `dict[Unknown | str, BaseLoader | None | Unknown]`
- tests/test_loader.py:294:24: warning[possibly-missing-attribute] Attribute `loader` may be missing on object of type `Unknown | None | Environment`
+ tests/test_loader.py:294:24: warning[possibly-missing-attribute] Attribute `loader` may be missing on object of type `Environment | None | Unknown`
- tests/test_loader.py:298:17: warning[possibly-missing-attribute] Attribute `get_template` may be missing on object of type `Unknown | None | Environment`
+ tests/test_loader.py:298:17: warning[possibly-missing-attribute] Attribute `get_template` may be missing on object of type `Environment | None | Unknown`
- tests/test_loader.py:300:17: warning[possibly-missing-attribute] Attribute `get_template` may be missing on object of type `Unknown | None | Environment`
+ tests/test_loader.py:300:17: warning[possibly-missing-attribute] Attribute `get_template` may be missing on object of type `Environment | None | Unknown`
- tests/test_loader.py:306:20: warning[possibly-missing-attribute] Attribute `loader` may be missing on object of type `Unknown | None | Environment`
+ tests/test_loader.py:306:20: warning[possibly-missing-attribute] Attribute `loader` may be missing on object of type `Environment | None | Unknown`
- tests/test_loader.py:306:20: warning[possibly-missing-attribute] Attribute `module` may be missing on object of type `Unknown | BaseLoader | None`
+ tests/test_loader.py:306:20: warning[possibly-missing-attribute] Attribute `module` may be missing on object of type `BaseLoader | None | Unknown`
- tests/test_loader.py:315:20: warning[possibly-missing-attribute] Attribute `loader` may be missing on object of type `Unknown | None | Environment`
+ tests/test_loader.py:315:20: warning[possibly-missing-attribute] Attribute `loader` may be missing on object of type `Environment | None | Unknown`
- tests/test_loader.py:315:20: warning[possibly-missing-attribute] Attribute `module` may be missing on object of type `Unknown | BaseLoader | None`
+ tests/test_loader.py:315:20: warning[possibly-missing-attribute] Attribute `module` may be missing on object of type `BaseLoader | None | Unknown`

paasta (https://github.com/yelp/paasta)
- paasta_tools/config_utils.py:196:18: error[invalid-argument-type] Argument to function `chdir` is incorrect: Expected `int | str | bytes | PathLike[str] | PathLike[bytes]`, found `Unknown | str | None`
+ paasta_tools/config_utils.py:196:18: error[invalid-argument-type] Argument to function `chdir` is incorrect: Expected `int | str | bytes | PathLike[str] | PathLike[bytes]`, found `None | str | Unknown`
- paasta_tools/config_utils.py:232:13: error[invalid-argument-type] Argument to function `write_auto_config_data` is incorrect: Expected `str`, found `Unknown | str | None`
+ paasta_tools/config_utils.py:232:13: error[invalid-argument-type] Argument to function `write_auto_config_data` is incorrect: Expected `str`, found `None | str | Unknown`
- paasta_tools/kubernetes/application/controller_wrappers.py:125:56: warning[possibly-missing-attribute] Attribute `get_namespace` may be missing on object of type `Unknown | None | KubernetesDeploymentConfig`
+ paasta_tools/kubernetes/application/controller_wrappers.py:125:56: warning[possibly-missing-attribute] Attribute `get_namespace` may be missing on object of type `KubernetesDeploymentConfig | None | Unknown`
- paasta_tools/kubernetes/application/controller_wrappers.py:140:12: warning[possibly-missing-attribute] Attribute `get_iam_role` may be missing on object of type `Unknown | None | KubernetesDeploymentConfig`
+ paasta_tools/kubernetes/application/controller_wrappers.py:140:12: warning[possibly-missing-attribute] Attribute `get_iam_role` may be missing on object of type `KubernetesDeploymentConfig | None | Unknown`
- paasta_tools/kubernetes/application/controller_wrappers.py:142:26: warning[possibly-missing-attribute] Attribute `get_iam_role` may be missing on object of type `Unknown | None | KubernetesDeploymentConfig`
+ paasta_tools/kubernetes/application/controller_wrappers.py:142:26: warning[possibly-missing-attribute] Attribute `get_iam_role` may be missing on object of type `KubernetesDeploymentConfig | None | Unknown`
- paasta_tools/kubernetes/application/controller_wrappers.py:143:27: warning[possibly-missing-attribute] Attribute `get_namespace` may be missing on object of type `Unknown | None | KubernetesDeploymentConfig`
+ paasta_tools/kubernetes/application/controller_wrappers.py:143:27: warning[possibly-missing-attribute] Attribute `get_namespace` may be missing on object of type `KubernetesDeploymentConfig | None | Unknown`
- paasta_tools/kubernetes/application/controller_wrappers.py:179:38: warning[possibly-missing-attribute] Attribute `config_dict` may be missing on object of type `Unknown | None | KubernetesDeploymentConfig`
+ paasta_tools/kubernetes/application/controller_wrappers.py:179:38: warning[possibly-missing-attribute] Attribute `config_dict` may be missing on object of type `KubernetesDeploymentConfig | None | Unknown`
- paasta_tools/kubernetes/application/controller_wrappers.py:181:29: warning[possibly-missing-attribute] Attribute `get_bounce_margin_factor` may be missing on object of type `Unknown | None | KubernetesDeploymentConfig`
+ paasta_tools/kubernetes/application/controller_wrappers.py:181:29: warning[possibly-missing-attribute] Attribute `get_bounce_margin_factor` may be missing on object of type `KubernetesDeploymentConfig | None | Unknown`
- paasta_tools/kubernetes/application/controller_wrappers.py:186:47: warning[possibly-missing-attribute] Attribute `config_dict` may be missing on object of type `Unknown | None | KubernetesDeploymentConfig`
+ paasta_tools/kubernetes/application/controller_wrappers.py:186:47: warning[possibly-missing-attribute] Attribute `config_dict` may be missing on object of type `KubernetesDeploymentConfig | None | Unknown`
- paasta_tools/kubernetes/application/controller_wrappers.py:188:17: warning[possibly-missing-attribute] Attribute `get_unhealthy_pod_eviction_policy` may be missing on object of type `Unknown | None | KubernetesDeploymentConfig`
+ paasta_tools/kubernetes/application/controller_wrappers.py:188:17: warning[possibly-missing-attribute] Attribute `get_unhealthy_pod_eviction_policy` may be missing on object of type `KubernetesDeploymentConfig | None | Unknown`
- paasta_tools/kubernetes/application/controller_wrappers.py:296:23: warning[possibly-missing-attribute] Attribute `get_namespace` may be missing on object of type `Unknown | None | KubernetesDeploymentConfig`
+ paasta_tools/kubernetes/application/controller_wrappers.py:296:23: warning[possibly-missing-attribute] Attribute `get_namespace` may be missing on object of type `KubernetesDeploymentConfig | None | Unknown`
- paasta_tools/kubernetes/application/controller_wrappers.py:298:56: warning[possibly-missing-attribute] Attribute `get_namespace` may be missing on object of type `Unknown | None | KubernetesDeploymentConfig`
+ paasta_tools/kubernetes/application/controller_wrappers.py:298:56: warning[possibly-missing-attribute] Attribute `get_namespace` may be missing on object of type `KubernetesDeploymentConfig | None | Unknown`
- paasta_tools/kubernetes/application/controller_wrappers.py:307:23: warning[possibly-missing-attribute] Attribute `get_namespace` may be missing on object of type `Unknown | None | KubernetesDeploymentConfig`
+ paasta_tools/kubernetes/application/controller_wrappers.py:307:23: warning[possibly-missing-attribute] Attribute `get_namespace` may be missing on object of type `KubernetesDeploymentConfig | None | Unknown`
- paasta_tools/kubernetes/application/controller_wrappers.py:319:28: warning[possibly-missing-attribute] Attribute `get_autoscaling_metric_spec` may be missing on object of type `Unknown | None | KubernetesDeploymentConfig`
+ paasta_tools/kubernetes/application/controller_wrappers.py:319:28: warning[possibly-missing-attribute] Attribute `get_autoscaling_metric_spec` may be missing on object of type `KubernetesDeploymentConfig | None | Unknown`
- paasta_tools/kubernetes/application/controller_wrappers.py:321:21: warning[possibly-missing-attribute] Attribute `cluster` may be missing on object of type `Unknown | None | KubernetesDeploymentConfig`
+ paasta_tools/kubernetes/application/controller_wrappers.py:321:21: warning[possibly-missing-attribute] Attribute `cluster` may be missing on object of type `KubernetesDeploymentConfig | None | Unknown`
- paasta_tools/kubernetes/application/controller_wrappers.py:441:23: warning[possibly-missing-attribute] Attribute `get_namespace` may be missing on object of type `Unknown | None | KubernetesDeploymentConfig`
+ paasta_tools/kubernetes/application/controller_wrappers.py:441:23: warning[possibly-missing-attribute] Attribute `get_namespace` may be missing on object of type `KubernetesDeploymentConfig | None | Unknown`
- paasta_tools/kubernetes/application/controller_wrappers.py:443:56: warning[possibly-missing-attribute] Attribute `get_namespace` may be missing on object of type `Unknown | None | KubernetesDeploymentConfig`
+ paasta_tools/kubernetes/application/controller_wrappers.py:443:56: warning[possibly-missing-attribute] Attribute `get_namespace` may be missing on object of type `KubernetesDeploymentConfig | None | Unknown`
- paasta_tools/kubernetes/application/controller_wrappers.py:449:23: warning[possibly-missing-attribute] Attribute `get_namespace` may be missing on object of type `Unknown | None | KubernetesDeploymentConfig`
+ paasta_tools/kubernetes/application/controller_wrappers.py:449:23: warning[possibly-missing-attribute] Attribute `get_namespace` may be missing on object of type `KubernetesDeploymentConfig | None | Unknown`
- paasta_tools/kubernetes/application/controller_wrappers.py:496:23: warning[possibly-missing-attribute] Attribute `get_namespace` may be missing on object of type `Unknown | None | KubernetesDeploymentConfig`
+ paasta_tools/kubernetes/application/controller_wrappers.py:496:23: warning[possibly-missing-attribute] Attribute `get_namespace` may be missing on object of type `KubernetesDeploymentConfig | None | Unknown`
- paasta_tools/setup_kubernetes_job.py:440:24: warning[possibly-missing-attribute] Attribute `get_bounce_method` may be missing on object of type `Unknown | None | KubernetesDeploymentConfig`
+ paasta_tools/setup_kubernetes_job.py:440:24: warning[possibly-missing-attribute] Attribute `get_bounce_method` may be missing on object of type `KubernetesDeploymentConfig | None | Unknown`

pip (https://github.com/pypa/pip)
- src/pip/_vendor/rich/table.py:359:5: error[invalid-argument-type] Argument to bound method `setter` is incorrect: Expected `(Any, Any, /) -> None`, found `def padding(self, padding: int | tuple[int] | tuple[int, int] | tuple[int, int, int, int]) -> Table`
+ src/pip/_vendor/rich/table.py:359:5: error[invalid-argument-type] Argument to bound method `setter` is incorrect: Expected `(Any, Any, /) -> None`, found `def padding(self, padding: tuple[int] | tuple[int, int] | tuple[int, int, int, int] | int) -> Table`
- src/pip/_vendor/urllib3/connectionpool.py:276:20: warning[possibly-missing-attribute] Attribute `get` may be missing on object of type `Unknown | LifoQueue | None`
+ src/pip/_vendor/urllib3/connectionpool.py:276:20: warning[possibly-missing-attribute] Attribute `get` may be missing on object of type `LifoQueue | None | Unknown`
- src/pip/_vendor/urllib3/connectionpool.py:316:13: warning[possibly-missing-attribute] Attribute `put` may be missing on object of type `Unknown | LifoQueue | None`
+ src/pip/_vendor/urllib3/connectionpool.py:316:13: warning[possibly-missing-attribute] Attribute `put` may be missing on object of type `LifoQueue | None | Unknown`
- src/pip/_vendor/urllib3/connectionpool.py:326:17: warning[possibly-missing-attribute] Attribute `qsize` may be missing on object of type `Unknown | LifoQueue | None`
+ src/pip/_vendor/urllib3/connectionpool.py:326:17: warning[possibly-missing-attribute] Attribute `qsize` may be missing on object of type `LifoQueue | None | Unknown`

black (https://github.com/psf/black)
- src/black/linegen.py:1821:25: warning[possibly-missing-attribute] Attribute `value` may be missing on object of type `Node | Leaf`
+ src/black/linegen.py:1821:25: warning[possibly-missing-attribute] Attribute `value` may be missing on object of type `Leaf | Node`

aiortc (https://github.com/aiortc/aiortc)
- src/aiortc/rtcpeerconnection.py:580:21: error[invalid-argument-type] Argument to function `create_media_description_for_transceiver` is incorrect: Expected `str`, found `str | None | @Todo`
+ src/aiortc/rtcpeerconnection.py:580:21: error[invalid-argument-type] Argument to function `create_media_description_for_transceiver` is incorrect: Expected `str`, found `None | str | @Todo`
- src/aiortc/rtcpeerconnection.py:1223:13: error[invalid-argument-type] Argument is incorrect: Expected `str`, found `str | None`
+ src/aiortc/rtcpeerconnection.py:1223:13: error[invalid-argument-type] Argument is incorrect: Expected `str`, found `None | str`

alerta (https://github.com/alerta/alerta)
- alerta/auth/basic.py:31:48: error[invalid-argument-type] Argument to function `not_authorized` is incorrect: Expected `list[str]`, found `list[str | None]`
+ alerta/auth/basic.py:31:48: error[invalid-argument-type] Argument to function `not_authorized` is incorrect: Expected `list[str]`, found `list[None | str]`
- alerta/auth/github.py:85:115: error[invalid-argument-type] Argument to function `not_authorized` is incorrect: Expected `list[str]`, found `list[str | None]`
+ alerta/auth/github.py:85:115: error[invalid-argument-type] Argument to function `not_authorized` is incorrect: Expected `list[str]`, found `list[None | str]`
- alerta/auth/oidc.py:192:95: error[invalid-argument-type] Argument to function `not_authorized` is incorrect: Expected `list[str]`, found `list[str | None]`
+ alerta/auth/oidc.py:192:95: error[invalid-argument-type] Argument to function `not_authorized` is incorrect: Expected `list[str]`, found `list[None | str]`
- alerta/auth/saml.py:100:98: error[invalid-argument-type] Argument to function `not_authorized` is incorrect: Expected `list[str]`, found `list[str | None]`
+ alerta/auth/saml.py:100:98: error[invalid-argument-type] Argument to function `not_authorized` is incorrect: Expected `list[str]`, found `list[None | str]`
- alerta/tasks.py:23:80: error[invalid-argument-type] Argument to function `process_action` is incorrect: Expected `int`, found `int | None`
+ alerta/tasks.py:23:80: error[invalid-argument-type] Argument to function `process_action` is incorrect: Expected `int`, found `None | int`
- alerta/views/users.py:33:48: error[invalid-argument-type] Argument to function `not_authorized` is incorrect: Expected `list[str]`, found `list[str | None]`
+ alerta/views/users.py:33:48: error[invalid-argument-type] Argument to function `not_authorized` is incorrect: Expected `list[str]`, found `list[None | str]`

sockeye (https://github.com/awslabs/sockeye)
- sockeye/lr_scheduler.py:138:29: warning[possibly-missing-attribute] Attribute `param_groups` may be missing on object of type `Unknown | None`
+ sockeye/lr_scheduler.py:138:29: warning[possibly-missing-attribute] Attribute `param_groups` may be missing on object of type `None | Unknown`
- sockeye/lr_scheduler.py:168:29: warning[possibly-missing-attribute] Attribute `param_groups` may be missing on object of type `Unknown | None`
+ sockeye/lr_scheduler.py:168:29: warning[possibly-missing-attribute] Attribute `param_groups` may be missing on object of type `None | Unknown`
- sockeye/lr_scheduler.py:236:29: warning[possibly-missing-attribute] Attribute `param_groups` may be missing on object of type `Unknown | None`
+ sockeye/lr_scheduler.py:236:29: warning[possibly-missing-attribute] Attribute `param_groups` may be missing on object of type `None | Unknown`

rich (https://github.com/Textualize/rich)
- rich/table.py:359:5: error[invalid-argument-type] Argument to bound method `setter` is incorrect: Expected `(Any, Any, /) -> None`, found `def padding(self, padding: int | tuple[int] | tuple[int, int] | tuple[int, int, int, int]) -> Table`
+ rich/table.py:359:5: error[invalid-argument-type] Argument to bound method `setter` is incorrect: Expected `(Any, Any, /) -> None`, found `def padding(self, padding: tuple[int] | tuple[int, int] | tuple[int, int, int, int] | int) -> Table`
- tests/test_console.py:173:16: error[invalid-return-type] Return type does not match returned value: expected `tuple[int, int]`, found `(Unknown & ~<class 'ValueError'>) | tuple[int, int] | (type[ValueError] & ~<class 'ValueError'>)`
+ tests/test_console.py:173:16: error[invalid-return-type] Return type does not match returned value: expected `tuple[int, int]`, found `(type[ValueError] & ~<class 'ValueError'>) | tuple[int, int] | (Unknown & ~<class 'ValueError'>)`

ignite (https://github.com/pytorch/ignite)
- ignite/handlers/lr_finder.py:186:16: error[unsupported-operator] Operator `<` is not supported for types `int` and `None`, in comparing `Unknown | int | float` with `Unknown | None | int | float`
+ ignite/handlers/lr_finder.py:186:16: error[unsupported-operator] Operator `<` is not supported for types `int` and `None`, in comparing `Unknown | int | float` with `None | float | int | Unknown`
- tests/ignite/handlers/test_checkpoint.py:1429:17: error[invalid-argument-type] Argument to function `__new__` is incorrect: Expected `str | PathLike[str]`, found `str | Path | None`
+ tests/ignite/handlers/test_checkpoint.py:1429:17: error[invalid-argument-type] Argument to function `__new__` is incorrect: Expected `str | PathLike[str]`, found `None | Path | str`
- tests/ignite/handlers/test_checkpoint.py:1812:25: error[invalid-argument-type] Argument to function `__new__` is incorrect: Expected `str | PathLike[str]`, found `str | Path | None`
+ tests/ignite/handlers/test_checkpoint.py:1812:25: error[invalid-argument-type] Argument to function `__new__` is incorrect: Expected `str | PathLike[str]`, found `None | Path | str`
- tests/ignite/handlers/test_checkpoint.py:1814:25: error[invalid-argument-type] Argument to function `__new__` is incorrect: Expected `str | PathLike[str]`, found `str | Path | None`
+ tests/ignite/handlers/test_checkpoint.py:1814:25: error[invalid-argument-type] Argument to function `__new__` is incorrect: Expected `str | PathLike[str]`, found `None | Path | str`

ppb-vector (https://github.com/ppb/ppb-vector)
- ppb_vector/__init__.py:567:16: error[invalid-return-type] Return type does not match returned value: expected `Vector`, found `int | float`
+ ppb_vector/__init__.py:567:16: error[invalid-return-type] Return type does not match returned value: expected `Vector`, found `float | int`
- tests/test_length.py:41:20: error[unresolved-attribute] Object of type `int | float` has no attribute `length`
+ tests/test_length.py:41:20: error[unresolved-attribute] Object of type `float | int` has no attribute `length`
- tests/test_project.py:50:8: error[unresolved-attribute] Object of type `int | float` has no attribute `isclose`
+ tests/test_project.py:50:8: error[unresolved-attribute] Object of type `float | int` has no attribute `isclose`
- tests/test_scalar_multiplication.py:10:28: error[unresolved-attribute] Object of type `int | float` has no attribute `x`
+ tests/test_scalar_multiplication.py:10:28: error[unresolved-attribute] Object of type `float | int` has no attribute `x`
- tests/test_scalar_multiplication.py:11:28: error[unresolved-attribute] Object of type `int | float` has no attribute `y`
+ tests/test_scalar_multiplication.py:11:28: error[unresolved-attribute] Object of type `float | int` has no attribute `y`
- tests/test_scalar_multiplication.py:19:12: error[unresolved-attribute] Object of type `int | float` has no attribute `isclose`
+ tests/test_scalar_multiplication.py:19:12: error[unresolved-attribute] Object of type `float | int` has no attribute `isclose`
- tests/test_scalar_multiplication.py:24:12: error[unresolved-attribute] Object of type `int | float` has no attribute `isclose`
+ tests/test_scalar_multiplication.py:24:12: error[unresolved-attribute] Object of type `float | int` has no attribute `isclose`
- tests/test_scalar_multiplication.py:32:20: error[unresolved-attribute] Object of type `int | float` has no attribute `length`
+ tests/test_scalar_multiplication.py:32:20: error[unresolved-attribute] Object of type `float | int` has no attribute `length`

optuna (https://github.com/optuna/optuna)
- optuna/importance/_fanova/_tree.py:45:16: error[invalid-return-type] Return type does not match returned value: expected `int | float`, found `(Unknown & ~None) | floating[Any]`
+ optuna/importance/_fanova/_tree.py:45:16: error[invalid-return-type] Return type does not match returned value: expected `int | float`, found `floating[Any] | (Unknown & ~None)`
- tutorial/20_recipes/005_user_defined_sampler.py:88:29: warning[possibly-missing-attribute] Attribute `params` may be missing on object of type `Unknown | None`
+ tutorial/20_recipes/005_user_defined_sampler.py:88:29: warning[possibly-missing-attribute] Attribute `params` may be missing on object of type `None | Unknown`

tornado (https://github.com/tornadoweb/tornado)
- tornado/iostream.py:1343:13: warning[possibly-missing-attribute] Attribute `getpeername` may be missing on object of type `Unknown | None | socket`
+ tornado/iostream.py:1343:13: warning[possibly-missing-attribute] Attribute `getpeername` may be missing on object of type `None | socket | Unknown`
- tornado/iostream.py:1363:13: warning[possibly-missing-attribute] Attribute `do_handshake` may be missing on object of type `Unknown | None | socket`
+ tornado/iostream.py:1363:13: warning[possibly-missing-attribute] Attribute `do_handshake` may be missing on object of type `None | socket | Unknown`
- tornado/iostream.py:1375:28: warning[possibly-missing-attribute] Attribute `getpeername` may be missing on object of type `Unknown | None | socket`
+ tornado/iostream.py:1375:28: warning[possibly-missing-attribute] Attribute `getpeername` may be missing on object of type `None | socket | Unknown`
- tornado/iostream.py:1379:47: warning[possibly-missing-attribute] Attribute `fileno` may be missing on object of type `Unknown | None | socket`
+ tornado/iostream.py:1379:47: warning[possibly-missing-attribute] Attribute `fileno` may be missing on object of type `None | socket | Unknown`
- tornado/iostream.py:1461:37: error[invalid-argument-type] Argument to bound method `remove_handler` is incorrect: Expected `int | _Selectable`, found `Unknown | None | socket`
+ tornado/iostream.py:1461:37: error[invalid-argument-type] Argument to bound method `remove_handler` is incorrect: Expected `int | _Selectable`, found `None | socket | Unknown`
- tornado/iostream.py:1466:13: error[invalid-argument-type] Argument to function `ssl_wrap_socket` is incorrect: Expected `socket`, found `Unknown | None | socket`
+ tornado/iostream.py:1466:13: error[invalid-argument-type] Argument to function `ssl_wrap_socket` is incorrect: Expected `socket`, found `None | socket | Unknown`
- tornado/iostream.py:1542:24: warning[possibly-missing-attribute] Attribute `recv_into` may be missing on object of type `Unknown | None | socket`
+ tornado/iostream.py:1542:24: warning[possibly-missing-attribute] Attribute `recv_into` may be missing on object of type `None | socket | Unknown`
- tornado/test/iostream_test.py:1128:34: warning[possibly-missing-attribute] Attribute `cipher` may be missing on object of type `Unknown | None | socket`
+ tornado/test/iostream_test.py:1128:34: warning[possibly-missing-attribute] Attribute `cipher` may be missing on object of type `None | socket | Unknown`

schemathesis (https://github.com/schemathesis/schemathesis)
- src/schemathesis/generation/hypothesis/builder.py:137:30: warning[possibly-missing-attribute] Attribute `verbosity` may be missing on object of type `settings | None`
+ src/schemathesis/generation/hypothesis/builder.py:137:30: warning[possibly-missing-attribute] Attribute `verbosity` may be missing on object of type `None | settings`

pandera (https://github.com/pandera-dev/pandera)
- tests/pandas/test_decorators.py:1093:9: error[invalid-argument-type] Argument to function `get_star_kwargs_keys_dataframe` is incorrect: Expected `DataFrame[InSchema] | None`, found `DataFrame`
+ tests/pandas/test_decorators.py:1093:9: error[invalid-argument-type] Argument to function `get_star_kwargs_keys_dataframe` is incorrect: Expected `None | DataFrame[InSchema]`, found `DataFrame`
- tests/pandas/test_decorators.py:1097:9: error[invalid-argument-type] Argument to function `get_star_kwargs_keys_dataframe` is incorrect: Expected `DataFrame[InSchema] | None`, found `DataFrame`
+ tests/pandas/test_decorators.py:1097:9: error[invalid-argument-type] Argument to function `get_star_kwargs_keys_dataframe` is incorrect: Expected `None | DataFrame[InSchema]`, found `DataFrame`
- tests/pandas/test_decorators.py:1108:13: error[invalid-argument-type] Argument to function `get_star_kwargs_keys_dataframe` is incorrect: Expected `DataFrame[InSchema] | None`, found `DataFrame`
+ tests/pandas/test_decorators.py:1108:13: error[invalid-argument-type] Argument to function `get_star_kwargs_keys_dataframe` is incorrect: Expected `None | DataFrame[InSchema]`, found `DataFrame`

mitmproxy (https://github.com/mitmproxy/mitmproxy)
- examples/contrib/sslstrip.py:39:29: warning[possibly-missing-attribute] Attribute `replace` may be missing on object of type `bytes | None`
+ examples/contrib/sslstrip.py:39:29: warning[possibly-missing-attribute] Attribute `replace` may be missing on object of type `None | bytes`
- examples/contrib/webscanner_helper/urlinjection.py:71:27: warning[possibly-missing-attribute] Attribute `decode` may be missing on object of type `bytes | None`
+ examples/contrib/webscanner_helper/urlinjection.py:71:27: warning[possibly-missing-attribute] Attribute `decode` may be missing on object of type `None | bytes`
- mitmproxy/http.py:383:54: error[invalid-argument-type] Argument to function `len` is incorrect: Expected `Sized`, 

... (truncated 1236 lines) ...

No memory usage changes detected ✅

astral-sh-bot · 2025-12-01T11:17:39Z

`ruff-ecosystem` results

Linter (stable)

✅ ecosystem check detected no linter changes.

Linter (preview)

✅ ecosystem check detected no linter changes.

mtshiba · 2025-12-01T11:37:23Z

Hmm, at least, this approach alone doesn't seem to eliminate the instability of the diagnostic itself, rather than the instability of the output type.

1st: https://github.com/astral-sh/ruff/actions/runs/19820273428/job/56780817916?pr=21722

scikit-build-core (https://github.com/scikit-build/scikit-build-core)
+ src/scikit_build_core/_logging.py:153:13: warning[unsupported-base] Unsupported class base with type `<class 'Mapping[str, Style]'> | <class 'Mapping[str, Divergent]'>`
- Found 41 diagnostics
+ Found 42 diagnostics

2nd: https://github.com/astral-sh/ruff/actions/runs/19820836584/job/56782606719?pr=21722

scikit-build-core (https://github.com/scikit-build/scikit-build-core)
- src/scikit_build_core/_logging.py:153:13: warning[unsupported-base] Unsupported class base with type `<class 'Mapping[str, Style]'> | <class 'Mapping[str, Divergent]'>`
- Found 42 diagnostics
+ Found 41 diagnostics

MichaReiser · 2025-12-01T11:39:45Z

Hmm, at least, this approach alone doesn't seem to eliminate the instability of the diagnostic itself, rather than the instability of the output type.

I think you need to create a PR targeting this PR to verify your change because mypy primer compares main vs this branch. What you want is to compare the branch to itself to see if there are any remaining instabilities

mtshiba · 2025-12-01T11:46:42Z

I think you need to create a PR targeting this PR to verify your change because mypy primer compares main vs this branch. What you want is to compare the branch to itself to see if there are any remaining instabilities

Ah, I see, main is unstable, so it can't be used for comparison.

…cycle recovery functions

mtshiba added 7 commits November 30, 2025 00:05

[ty] accelerate fixed-point convergence of recursively-defined litera…

13f1258

…l types

[ty] remove the visitor parameter in the `recursive_type_normalized…

d434aed

…_impl` method

Merge branch 'refactor-recursive-type-normalized' into sort-recursive…

d3cdc5a

…-union

sort recursive union types

b8d3fee

add structural_type_ordering

ffffe97

Merge branch 'main' into sort-recursive-union

d921202

Update module.rs

56d3173

AlexWaygood added the ty Multi-file analysis & type inference label Dec 1, 2025

mtshiba closed this Dec 1, 2025

mtshiba reopened this Dec 1, 2025

mtshiba mentioned this pull request Dec 1, 2025

[ty] experiment: sort union types during cycle recovery to stabilize output (for comparison with #21722) #21725

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sort union types originating from recursive queries, even outside of …

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…cycle recovery functions

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[ty] WIP: sort union types during cycle recovery to stabilize output #21722

[ty] WIP: sort union types during cycle recovery to stabilize output #21722

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mtshiba commented Dec 1, 2025

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[ty] WIP: sort union types during cycle recovery to stabilize output #21722

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mtshiba commented Dec 1, 2025

Summary

Test Plan

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Diagnostic diff on typing conformance tests

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mypy_primer results

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