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Remove datetime generic tzinfo typeshed patch - #22376

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cdce8p wants to merge 2 commits into
python:masterfrom
cdce8p:sync-typeshed
Open

Remove datetime generic tzinfo typeshed patch#22376
cdce8p wants to merge 2 commits into
python:masterfrom
cdce8p:sync-typeshed

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@cdce8p cdce8p commented Nov 5, 2026

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Followup to #22372

@cdce8p
cdce8p requested a review from hauntsaninja November 5, 2026 21:20
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github-actions Bot commented Nov 5, 2026

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Diff from mypy_primer, showing the effect of this PR on open source code:

psycopg (https://github.com/psycopg/psycopg)
+ psycopg/psycopg/types/datetime.py:574: error: Incompatible types in assignment (expression has type "datetime[None]", variable has type "datetime[tzinfo]")  [assignment]

steam.py (https://github.com/Gobot1234/steam.py)
- steam/app.py:463: error: Incompatible types in assignment (expression has type "None", variable has type "datetime")  [assignment]
+ steam/app.py:463: error: Incompatible types in assignment (expression has type "None", variable has type "datetime[Any]")  [assignment]

prefect (https://github.com/PrefectHQ/prefect)
- src/prefect/_internal/schemas/validators.py:231: error: Incompatible return value type (got "datetime", expected "DateTime")  [return-value]
+ src/prefect/_internal/schemas/validators.py:231: error: Incompatible return value type (got "datetime[Any]", expected "DateTime")  [return-value]
- src/prefect/_internal/schemas/validators.py:264: error: Item "None" of "tzinfo | None" has no attribute "name"  [union-attr]
- src/prefect/server/schemas/schedules.py:539: error: Argument 1 to "_next_date" has incompatible type "datetime"; expected "DateTime"  [arg-type]
+ src/prefect/server/schemas/schedules.py:539: error: Argument 1 to "_next_date" has incompatible type "datetime[Any]"; expected "DateTime"  [arg-type]
- src/prefect/server/schemas/schedules.py:552: error: Incompatible types in "yield" (actual type "datetime", expected type "DateTime")  [misc]
+ src/prefect/server/schemas/schedules.py:552: error: Incompatible types in "yield" (actual type "datetime[Any]", expected type "DateTime")  [misc]
- src/prefect/server/schemas/schedules.py:560: error: Argument 1 to "_next_date" has incompatible type "datetime"; expected "DateTime"  [arg-type]
+ src/prefect/server/schemas/schedules.py:560: error: Argument 1 to "_next_date" has incompatible type "datetime[Any]"; expected "DateTime"  [arg-type]
- src/prefect/server/schemas/schedules.py:727: error: Incompatible types in "yield" (actual type "datetime", expected type "DateTime")  [misc]
+ src/prefect/server/schemas/schedules.py:727: error: Incompatible types in "yield" (actual type "datetime[Any]", expected type "DateTime")  [misc]
- src/prefect/server/schemas/schedules.py:881: error: Incompatible default for parameter "start" (default has type "None", parameter has type "datetime")  [assignment]
+ src/prefect/server/schemas/schedules.py:881: error: Incompatible default for parameter "start" (default has type "None", parameter has type "datetime[Any]")  [assignment]
- src/prefect/server/schemas/schedules.py:882: error: Incompatible default for parameter "end" (default has type "None", parameter has type "datetime")  [assignment]
+ src/prefect/server/schemas/schedules.py:882: error: Incompatible default for parameter "end" (default has type "None", parameter has type "datetime[Any]")  [assignment]
- src/prefect/server/schemas/schedules.py:952: error: Incompatible types in "yield" (actual type "datetime", expected type "DateTime")  [misc]
+ src/prefect/server/schemas/schedules.py:952: error: Incompatible types in "yield" (actual type "datetime[tzinfo]", expected type "DateTime")  [misc]
- src/prefect/client/schemas/objects.py:416: error: Incompatible types in assignment (expression has type "datetime", variable has type "DateTime | None")  [assignment]
+ src/prefect/client/schemas/objects.py:416: error: Incompatible types in assignment (expression has type "datetime[Any]", variable has type "DateTime | None")  [assignment]
- src/prefect/states.py:358: error: Argument "expiration" to "create_result_record" of "ResultStore" has incompatible type "datetime | None"; expected "DateTime | None"  [arg-type]
+ src/prefect/states.py:358: error: Argument "expiration" to "create_result_record" of "ResultStore" has incompatible type "datetime[Any] | None"; expected "DateTime | None"  [arg-type]
- src/prefect/states.py:407: error: Argument "expiration" to "create_result_record" of "ResultStore" has incompatible type "datetime | None"; expected "DateTime | None"  [arg-type]
+ src/prefect/states.py:407: error: Argument "expiration" to "create_result_record" of "ResultStore" has incompatible type "datetime[Any] | None"; expected "DateTime | None"  [arg-type]
- src/prefect/states.py:436: error: Argument "expiration" to "create_result_record" of "ResultStore" has incompatible type "datetime | None"; expected "DateTime | None"  [arg-type]
+ src/prefect/states.py:436: error: Argument "expiration" to "create_result_record" of "ResultStore" has incompatible type "datetime[Any] | None"; expected "DateTime | None"  [arg-type]
- src/prefect/server/schemas/states.py:182: error: Incompatible types in assignment (expression has type "datetime", variable has type "DateTime | None")  [assignment]
+ src/prefect/server/schemas/states.py:182: error: Incompatible types in assignment (expression has type "datetime[Any]", variable has type "DateTime | None")  [assignment]
- src/prefect/server/schemas/states.py:329: error: Incompatible types in assignment (expression has type "datetime", variable has type "DateTime | None")  [assignment]
+ src/prefect/server/schemas/states.py:329: error: Incompatible types in assignment (expression has type "datetime[Any]", variable has type "DateTime | None")  [assignment]
- src/prefect/events/related.py:212: error: Incompatible types in assignment (expression has type "tuple[dict[str, str | ObjectBaseModel | None], datetime]", target has type "tuple[dict[str, str | ObjectBaseModel | None], DateTime]")  [assignment]
+ src/prefect/events/related.py:212: error: Incompatible types in assignment (expression has type "tuple[dict[str, str | ObjectBaseModel | None], datetime[Any]]", target has type "tuple[dict[str, str | ObjectBaseModel | None], DateTime]")  [assignment]
- src/prefect/events/clients.py:849: error: Incompatible types in assignment (expression has type "datetime", variable has type "DateTime | None")  [assignment]
+ src/prefect/events/clients.py:849: error: Incompatible types in assignment (expression has type "datetime[Any]", variable has type "DateTime | None")  [assignment]
- src/prefect/_internal/states.py:228: error: Argument "expiration" to "create_result_record" of "ResultStore" has incompatible type "datetime | None"; expected "DateTime | None"  [arg-type]
+ src/prefect/_internal/states.py:228: error: Argument "expiration" to "create_result_record" of "ResultStore" has incompatible type "datetime[Any] | None"; expected "DateTime | None"  [arg-type]
- src/prefect/_internal/states.py:277: error: Argument "expiration" to "create_result_record" of "ResultStore" has incompatible type "datetime | None"; expected "DateTime | None"  [arg-type]
+ src/prefect/_internal/states.py:277: error: Argument "expiration" to "create_result_record" of "ResultStore" has incompatible type "datetime[Any] | None"; expected "DateTime | None"  [arg-type]
- src/prefect/_internal/states.py:306: error: Argument "expiration" to "create_result_record" of "ResultStore" has incompatible type "datetime | None"; expected "DateTime | None"  [arg-type]
+ src/prefect/_internal/states.py:306: error: Argument "expiration" to "create_result_record" of "ResultStore" has incompatible type "datetime[Any] | None"; expected "DateTime | None"  [arg-type]
- src/prefect/server/schemas/responses.py:146: error: Incompatible types in assignment (expression has type "datetime", target has type "None")  [assignment]
+ src/prefect/server/schemas/responses.py:146: error: Incompatible types in assignment (expression has type "datetime[Any]", target has type "None")  [assignment]
- src/prefect/server/events/actions.py:861: error: Argument "scheduled_time" to "Scheduled" has incompatible type "datetime"; expected "DateTime | None"  [arg-type]
+ src/prefect/server/events/actions.py:861: error: Argument "scheduled_time" to "Scheduled" has incompatible type "datetime[tzinfo]"; expected "DateTime | None"  [arg-type]
- src/prefect/deployments/runner.py:1005: error: Argument 1 to "construct_schedule" has incompatible type "**dict[str, str | Any | int | float | timedelta | datetime | None]"; expected "int | float | timedelta | None"  [arg-type]
+ src/prefect/deployments/runner.py:1005: error: Argument 1 to "construct_schedule" has incompatible type "**dict[str, str | Any | int | float | timedelta | datetime[Any] | None]"; expected "int | float | timedelta | None"  [arg-type]
- src/prefect/deployments/runner.py:1005: error: Argument 1 to "construct_schedule" has incompatible type "**dict[str, str | Any | int | float | timedelta | datetime | None]"; expected "datetime | str | None"  [arg-type]
+ src/prefect/deployments/runner.py:1005: error: Argument 1 to "construct_schedule" has incompatible type "**dict[str, str | Any | int | float | timedelta | datetime[Any] | None]"; expected "datetime[Any] | str | None"  [arg-type]
- src/prefect/deployments/runner.py:1005: error: Argument 1 to "construct_schedule" has incompatible type "**dict[str, str | Any | int | float | timedelta | datetime | None]"; expected "str | None"  [arg-type]
+ src/prefect/deployments/runner.py:1005: error: Argument 1 to "construct_schedule" has incompatible type "**dict[str, str | Any | int | float | timedelta | datetime[Any] | None]"; expected "str | None"  [arg-type]
- src/prefect/server/models/variables.py:18: error: Argument 2 to "variable_created_event" has incompatible type "datetime"; expected "DateTime"  [arg-type]
+ src/prefect/server/models/variables.py:18: error: Argument 2 to "variable_created_event" has incompatible type "datetime[Any]"; expected "DateTime"  [arg-type]
- src/prefect/server/models/variables.py:24: error: Argument 2 to "variable_updated_event" has incompatible type "datetime"; expected "DateTime"  [arg-type]
+ src/prefect/server/models/variables.py:24: error: Argument 2 to "variable_updated_event" has incompatible type "datetime[Any]"; expected "DateTime"  [arg-type]
- src/prefect/server/models/variables.py:30: error: Argument 2 to "variable_deleted_event" has incompatible type "datetime"; expected "DateTime"  [arg-type]
+ src/prefect/server/models/variables.py:30: error: Argument 2 to "variable_deleted_event" has incompatible type "datetime[Any]"; expected "DateTime"  [arg-type]
- src/prefect/server/models/flows.py:26: error: Argument 2 to "flow_created_event" has incompatible type "datetime"; expected "DateTime"  [arg-type]
+ src/prefect/server/models/flows.py:26: error: Argument 2 to "flow_created_event" has incompatible type "datetime[Any]"; expected "DateTime"  [arg-type]
- src/prefect/server/models/flows.py:32: error: Argument 2 to "flow_updated_event" has incompatible type "datetime"; expected "DateTime"  [arg-type]
+ src/prefect/server/models/flows.py:32: error: Argument 2 to "flow_updated_event" has incompatible type "datetime[Any]"; expected "DateTime"  [arg-type]
- src/prefect/server/models/flows.py:38: error: Argument 2 to "flow_deleted_event" has incompatible type "datetime"; expected "DateTime"  [arg-type]
+ src/prefect/server/models/flows.py:38: error: Argument 2 to "flow_deleted_event" has incompatible type "datetime[Any]"; expected "DateTime"  [arg-type]
- src/prefect/server/models/concurrency_limits_v2.py:23: error: Argument 2 to "concurrency_limit_v2_created_event" has incompatible type "datetime"; expected "DateTime"  [arg-type]
+ src/prefect/server/models/concurrency_limits_v2.py:23: error: Argument 2 to "concurrency_limit_v2_created_event" has incompatible type "datetime[Any]"; expected "DateTime"  [arg-type]
- src/prefect/server/models/concurrency_limits_v2.py:33: error: Argument 2 to "concurrency_limit_v2_updated_event" has incompatible type "datetime"; expected "DateTime"  [arg-type]
+ src/prefect/server/models/concurrency_limits_v2.py:33: error: Argument 2 to "concurrency_limit_v2_updated_event" has incompatible type "datetime[Any]"; expected "DateTime"  [arg-type]
- src/prefect/server/models/concurrency_limits_v2.py:43: error: Argument 2 to "concurrency_limit_v2_deleted_event" has incompatible type "datetime"; expected "DateTime"  [arg-type]
+ src/prefect/server/models/concurrency_limits_v2.py:43: error: Argument 2 to "concurrency_limit_v2_deleted_event" has incompatible type "datetime[Any]"; expected "DateTime"  [arg-type]
- src/prefect/server/models/concurrency_limits.py:29: error: Argument 2 to "concurrency_limit_created_event" has incompatible type "datetime"; expected "DateTime"  [arg-type]
+ src/prefect/server/models/concurrency_limits.py:29: error: Argument 2 to "concurrency_limit_created_event" has incompatible type "datetime[Any]"; expected "DateTime"  [arg-type]
- src/prefect/server/models/concurrency_limits.py:39: error: Argument 2 to "concurrency_limit_updated_event" has incompatible type "datetime"; expected "DateTime"  [arg-type]
+ src/prefect/server/models/concurrency_limits.py:39: error: Argument 2 to "concurrency_limit_updated_event" has incompatible type "datetime[Any]"; expected "DateTime"  [arg-type]
- src/prefect/server/models/concurrency_limits.py:49: error: Argument 2 to "concurrency_limit_deleted_event" has incompatible type "datetime"; expected "DateTime"  [arg-type]
+ src/prefect/server/models/concurrency_limits.py:49: error: Argument 2 to "concurrency_limit_deleted_event" has incompatible type "datetime[Any]"; expected "DateTime"  [arg-type]
- src/prefect/server/models/artifacts.py:25: error: Argument 2 to "artifact_collection_created_event" has incompatible type "datetime"; expected "DateTime"  [arg-type]
+ src/prefect/server/models/artifacts.py:25: error: Argument 2 to "artifact_collection_created_event" has incompatible type "datetime[Any]"; expected "DateTime"  [arg-type]
- src/prefect/server/models/artifacts.py:35: error: Argument 2 to "artifact_collection_updated_event" has incompatible type "datetime"; expected "DateTime"  [arg-type]
+ src/prefect/server/models/artifacts.py:35: error: Argument 2 to "artifact_collection_updated_event" has incompatible type "datetime[Any]"; expected "DateTime"  [arg-type]
- src/prefect/server/models/artifacts.py:45: error: Argument 2 to "artifact_collection_deleted_event" has incompatible type "datetime"; expected "DateTime"  [arg-type]
+ src/prefect/server/models/artifacts.py:45: error: Argument 2 to "artifact_collection_deleted_event" has incompatible type "datetime[Any]"; expected "DateTime"  [arg-type]
- src/prefect/server/events/counting.py:103: error: Unsupported operand types for + ("datetime" and "int")  [operator]
+ src/prefect/server/events/counting.py:103: error: Unsupported operand types for + ("datetime[tzinfo]" and "int")  [operator]
- src/prefect/server/models/block_types.py:30: error: Argument 2 to "block_type_created_event" has incompatible type "datetime"; expected "DateTime"  [arg-type]
+ src/prefect/server/models/block_types.py:30: error: Argument 2 to "block_type_created_event" has incompatible type "datetime[Any]"; expected "DateTime"  [arg-type]
- src/prefect/server/models/block_types.py:38: error: Argument 2 to "block_type_updated_event" has incompatible type "datetime"; expected "DateTime"  [arg-type]
+ src/prefect/server/models/block_types.py:38: error: Argument 2 to "block_type_updated_event" has incompatible type "datetime[Any]"; expected "DateTime"  [arg-type]
- src/prefect/server/models/block_types.py:46: error: Argument 2 to "block_type_deleted_event" has incompatible type "datetime"; expected "DateTime"  [arg-type]
+ src/prefect/server/models/block_types.py:46: error: Argument 2 to "block_type_deleted_event" has incompatible type "datetime[Any]"; expected "DateTime"  [arg-type]
- src/prefect/server/models/block_documents.py:36: error: Argument 2 to "block_document_created_event" has incompatible type "datetime"; expected "DateTime"  [arg-type]
+ src/prefect/server/models/block_documents.py:36: error: Argument 2 to "block_document_created_event" has incompatible type "datetime[Any]"; expected "DateTime"  [arg-type]
- src/prefect/server/models/block_documents.py:46: error: Argument 2 to "block_document_updated_event" has incompatible type "datetime"; expected "DateTime"  [arg-type]
+ src/prefect/server/models/block_documents.py:46: error: Argument 2 to "block_document_updated_event" has incompatible type "datetime[Any]"; expected "DateTime"  [arg-type]
- src/prefect/server/models/block_documents.py:56: error: Argument 2 to "block_document_deleted_event" has incompatible type "datetime"; expected "DateTime"  [arg-type]
+ src/prefect/server/models/block_documents.py:56: error: Argument 2 to "block_document_deleted_event" has incompatible type "datetime[Any]"; expected "DateTime"  [arg-type]
- src/prefect/server/models/workers.py:455: error: Argument "occurred" to "work_queue_deleted_event" has incompatible type "datetime"; expected "DateTime"  [arg-type]
+ src/prefect/server/models/workers.py:455: error: Argument "occurred" to "work_queue_deleted_event" has incompatible type "datetime[Any]"; expected "DateTime"  [arg-type]
- src/prefect/server/models/workers.py:575: error: Argument "occurred" to "work_queue_created_event" has incompatible type "datetime"; expected "DateTime"  [arg-type]

... (truncated 127 lines) ...

openlibrary (https://github.com/internetarchive/openlibrary)
+ openlibrary/tests/core/test_unmarshal.py:32: error: Unused "type: ignore" comment  [unused-ignore]
+ openlibrary/tests/core/test_unmarshal.py: note: In function "parse_datetime":
+ openlibrary/tests/core/test_unmarshal.py:32: error: No overload variant of "datetime" matches argument type "Generator[int, None, None]"  [call-overload]
+ openlibrary/tests/core/test_unmarshal.py:32: note: Error code "call-overload" not covered by "type: ignore[arg-type]" comment
+ openlibrary/tests/core/test_unmarshal.py:32: note: Possible overload variants:
+ openlibrary/tests/core/test_unmarshal.py:32: note:     def [_TzInfoT: tzinfo | None] datetime(year: SupportsIndex, month: SupportsIndex, day: SupportsIndex, hour: SupportsIndex = ..., minute: SupportsIndex = ..., second: SupportsIndex = ..., microsecond: SupportsIndex = ..., tzinfo: None = ..., *, fold: int = ...) -> datetime[None]
+ openlibrary/tests/core/test_unmarshal.py:32: note:     def [_TzInfoT: tzinfo | None] datetime(year: SupportsIndex, month: SupportsIndex, day: SupportsIndex, hour: SupportsIndex = ..., minute: SupportsIndex = ..., second: SupportsIndex = ..., microsecond: SupportsIndex = ..., *, tzinfo: tzinfo, fold: int = ...) -> datetime[tzinfo]
+ openlibrary/tests/core/test_unmarshal.py:32: note:     def [_TzInfoT: tzinfo | None] datetime(year: SupportsIndex, month: SupportsIndex, day: SupportsIndex, hour: SupportsIndex, minute: SupportsIndex, second: SupportsIndex, microsecond: SupportsIndex, tzinfo: tzinfo, *, fold: int = ...) -> datetime[tzinfo]
- openlibrary/tests/core/test_layout.py:32: error: Argument 1 to "ShellUser" has incompatible type "**dict[str, int | bool | str | Any | None]"; expected "datetime | None"  [arg-type]
+ openlibrary/tests/core/test_layout.py:32: error: Argument 1 to "ShellUser" has incompatible type "**dict[str, int | bool | str | Any | None]"; expected "datetime[Any] | None"  [arg-type]

aiohttp (https://github.com/aio-libs/aiohttp)
+ aiohttp/web_request.py:542:5: error: Type of decorated function contains type "Any" ("under_cached_property[datetime[Any] | None]")  [misc]
+ aiohttp/web_request.py:550:5: error: Type of decorated function contains type "Any" ("under_cached_property[datetime[Any] | None]")  [misc]
+ aiohttp/web_request.py:604:5: error: Type of decorated function contains type "Any" ("under_cached_property[datetime[Any] | ETag | None]")  [misc]

zulip (https://github.com/zulip/zulip)
+ zerver/tests/test_timestamp.py:80: error: Incompatible types in assignment (expression has type "datetime[None]", variable has type "datetime[tzinfo]")  [assignment]

core (https://github.com/home-assistant/core)
+ homeassistant/components/braviatv/coordinator.py:254: error: Statement is unreachable  [unreachable]
+ homeassistant/components/tibber/coordinator.py:340: error: Incompatible types in assignment (expression has type "datetime[tzinfo]", variable has type "datetime[None]")  [assignment]
- homeassistant/components/xbox/coordinator.py:318: error: Returning Any from function declared to return "datetime | None"  [no-any-return]
+ homeassistant/components/xbox/coordinator.py:318: error: Returning Any from function declared to return "datetime[Any] | None"  [no-any-return]
- homeassistant/components/xbox/coordinator.py:320: error: Returning Any from function declared to return "datetime | None"  [no-any-return]
+ homeassistant/components/xbox/coordinator.py:320: error: Returning Any from function declared to return "datetime[Any] | None"  [no-any-return]
+ homeassistant/components/recorder/models/state.py:73: error: Unused "type: ignore" comment  [unused-ignore]
+ homeassistant/components/recorder/models/state.py:81: error: Unused "type: ignore" comment  [unused-ignore]
+ homeassistant/components/ubus/coordinator.py:100: error: Incompatible types in assignment (expression has type "datetime[None]", variable has type "datetime[tzinfo]")  [assignment]
+ homeassistant/components/data_grand_lyon/sensor.py:44: error: Returning Any from function declared to return "datetime[Any]"  [no-any-return]
+ homeassistant/components/data_grand_lyon/sensor.py:45: error: Returning Any from function declared to return "datetime[Any]"  [no-any-return]
+ homeassistant/components/icloud/account.py:980: error: Need type annotation for "age"  [var-annotated]
- homeassistant/components/jewish_calendar/sensor.py:305: error: Returning Any from function declared to return "datetime | None"  [no-any-return]
- homeassistant/components/alexa_devices/media_player.py:209: error: Returning Any from function declared to return "datetime | None"  [no-any-return]
- homeassistant/components/data_grand_lyon/sensor.py:44: error: Returning Any from function declared to return "datetime"  [no-any-return]
- homeassistant/components/data_grand_lyon/sensor.py:45: error: Returning Any from function declared to return "datetime"  [no-any-return]
- homeassistant/components/russound_rio/media_player.py:197: error: Returning Any from function declared to return "datetime"  [no-any-return]
+ homeassistant/components/easyenergy/services.py:161: error: Returning Any from function declared to return "list[dict[str, float | datetime[Any]]]"  [no-any-return]
+ homeassistant/components/alexa_devices/media_player.py:209: error: Returning Any from function declared to return "datetime[Any] | None"  [no-any-return]
- homeassistant/components/easyenergy/services.py:161: error: Returning Any from function declared to return "list[dict[str, float | datetime]]"  [no-any-return]
+ homeassistant/components/jewish_calendar/sensor.py:305: error: Returning Any from function declared to return "datetime[Any] | None"  [no-any-return]
+ homeassistant/components/russound_rio/media_player.py:197: error: Returning Any from function declared to return "datetime[Any]"  [no-any-return]
+ homeassistant/components/statistics/sensor.py:1078: error: Incompatible types in assignment (expression has type "datetime[tzinfo]", variable has type "datetime[None]")  [assignment]
- homeassistant/components/unifiprotect/sensor.py:100: error: Returning Any from function declared to return "datetime | None"  [no-any-return]
+ homeassistant/components/unifiprotect/sensor.py:100: error: Returning Any from function declared to return "datetime[Any] | None"  [no-any-return]
- homeassistant/components/unifiprotect/sensor.py:610: error: Returning Any from function declared to return "datetime | None"  [no-any-return]
+ homeassistant/components/unifiprotect/sensor.py:610: error: Returning Any from function declared to return "datetime[Any] | None"  [no-any-return]
+ homeassistant/components/cambridge_audio/media_player.py:188: error: Returning Any from function declared to return "datetime[Any]"  [no-any-return]
- homeassistant/components/hortimax/sensor.py:276: error: Returning Any from function declared to return "float | str | datetime | None"  [no-any-return]
+ homeassistant/components/hortimax/sensor.py:276: error: Returning Any from function declared to return "float | str | datetime[Any] | None"  [no-any-return]
+ homeassistant/components/onvif/device.py:293: error: Need type annotation for "dt_diff"  [var-annotated]
- homeassistant/components/cambridge_audio/media_player.py:188: error: Returning Any from function declared to return "datetime"  [no-any-return]
+ homeassistant/components/discovergy/sensor.py:37: error: Returning Any from function declared to return "datetime[Any] | float | None"  [no-any-return]
- homeassistant/components/discovergy/sensor.py:37: error: Returning Any from function declared to return "datetime | float | None"  [no-any-return]
- homeassistant/components/my_pv/sensor.py:258: error: Returning Any from function declared to return "str | int | float | None | date | datetime | Decimal"  [no-any-return]
+ homeassistant/components/my_pv/sensor.py:258: error: Returning Any from function declared to return "str | int | float | None | date | datetime[Any] | Decimal"  [no-any-return]
- homeassistant/components/ecowitt/sensor.py:368: error: Returning Any from function declared to return "str | int | float | None | datetime"  [no-any-return]
+ homeassistant/components/ecowitt/sensor.py:368: error: Returning Any from function declared to return "str | int | float | None | datetime[Any]"  [no-any-return]
+ homeassistant/components/roku/media_player.py:235: error: Returning Any from function declared to return "datetime[Any] | None"  [no-any-return]
- homeassistant/components/roku/media_player.py:235: error: Returning Any from function declared to return "datetime | None"  [no-any-return]
- homeassistant/components/local_calendar/calendar.py:283: note:     def __sub__(self, datetime, /) -> timedelta
+ homeassistant/components/local_calendar/calendar.py:283: note:     def __sub__(self, datetime[tzinfo] | datetime[tzinfo | None], /) -> timedelta
+ homeassistant/components/local_calendar/calendar.py:283: note:     def __sub__(self, datetime[None] | datetime[tzinfo | None], /) -> timedelta
- homeassistant/components/local_calendar/calendar.py:283: note:     def __sub__(self, timedelta, /) -> datetime
+ homeassistant/components/local_calendar/calendar.py:283: note:     def __sub__(self, datetime[Any], /) -> Never
+ homeassistant/components/local_calendar/calendar.py:283: note:     def __sub__(self, timedelta, /) -> datetime[Any]
- homeassistant/components/vallox/sensor.py:69: error: Returning Any from function declared to return "str | int | float | None | datetime"  [no-any-return]
+ homeassistant/components/vallox/sensor.py:69: error: Returning Any from function declared to return "str | int | float | None | datetime[Any]"  [no-any-return]
- homeassistant/components/wattwaechter/sensor.py:697: error: Returning Any from function declared to return "datetime | None"  [no-any-return]
+ homeassistant/components/wattwaechter/sensor.py:697: error: Returning Any from function declared to return "datetime[Any] | None"  [no-any-return]
- homeassistant/components/habitica/calendar.py:100: error: Returning Any from function declared to return "list[datetime]"  [no-any-return]
+ homeassistant/components/habitica/calendar.py:100: error: Returning Any from function declared to return "list[datetime[Any]]"  [no-any-return]
+ homeassistant/components/esphome/sensor.py:119: error: Returning Any from function declared to return "datetime[Any] | int | float | None"  [no-any-return]
+ homeassistant/components/esphome/sensor.py:150: error: Returning Any from function declared to return "str | datetime[Any] | date | None"  [no-any-return]
- homeassistant/components/esphome/sensor.py:119: error: Returning Any from function declared to return "datetime | int | float | None"  [no-any-return]
- homeassistant/components/esphome/sensor.py:150: error: Returning Any from function declared to return "str | datetime | date | None"  [no-any-return]
- homeassistant/components/nest/camera.py:236: error: Returning Any from function declared to return "datetime | None"  [no-any-return]
+ homeassistant/components/nest/camera.py:236: error: Returning Any from function declared to return "datetime[Any] | None"  [no-any-return]
- homeassistant/components/nest/camera.py:283: error: Returning Any from function declared to return "datetime | None"  [no-any-return]
+ homeassistant/components/nest/camera.py:283: error: Returning Any from function declared to return "datetime[Any] | None"  [no-any-return]
- homeassistant/components/yoto/media_player.py:128: error: Returning Any from function declared to return "datetime | None"  [no-any-return]
+ homeassistant/components/yoto/media_player.py:128: error: Returning Any from function declared to return "datetime[Any] | None"  [no-any-return]
- homeassistant/components/nest/sensor.py:143: error: Returning Any from function declared to return "datetime | None"  [no-any-return]
- homeassistant/components/knx/datetime.py:97: error: Returning Any from function declared to return "datetime | None"  [no-any-return]
+ homeassistant/components/knx/datetime.py:97: error: Returning Any from function declared to return "datetime[Any] | None"  [no-any-return]
+ homeassistant/components/nest/sensor.py:143: error: Returning Any from function declared to return "datetime[Any] | None"  [no-any-return]
- homeassistant/components/dlna_dmr/media_player.py:986: error: Returning Any from function declared to return "datetime | None"  [no-any-return]
+ homeassistant/components/dlna_dmr/media_player.py:986: error: Returning Any from function declared to return "datetime[Any] | None"  [no-any-return]
- homeassistant/components/lyngdorf/media_player.py:414: error: Returning Any from function declared to return "datetime | None"  [no-any-return]
+ homeassistant/components/lyngdorf/media_player.py:414: error: Returning Any from function declared to return "datetime[Any] | None"  [no-any-return]

discord.py (https://github.com/Rapptz/discord.py)
- discord/embeds.py:362: error: Incompatible types in assignment (expression has type "None", variable has type "datetime")  [assignment]
+ discord/embeds.py:362: error: Incompatible types in assignment (expression has type "None", variable has type "datetime[tzinfo] | datetime[Any]")  [assignment]
- discord/member.py:154: note:     def parse_time(timestamp: str) -> datetime
+ discord/member.py:154: note:     def parse_time(timestamp: str) -> datetime[Any]
- discord/member.py:154: note:     def parse_time(timestamp: str | None) -> datetime | None
+ discord/member.py:154: note:     def parse_time(timestamp: str | None) -> datetime[Any] | None
- discord/guild.py:4712: note:     def parse_time(timestamp: str) -> datetime
+ discord/guild.py:4712: note:     def parse_time(timestamp: str) -> datetime[Any]
- discord/guild.py:4712: note:     def parse_time(timestamp: str | None) -> datetime | None
+ discord/guild.py:4712: note:     def parse_time(timestamp: str | None) -> datetime[Any] | None
- discord/guild.py:4723: note:     def parse_time(timestamp: str) -> datetime
+ discord/guild.py:4723: note:     def parse_time(timestamp: str) -> datetime[Any]
- discord/guild.py:4723: note:     def parse_time(timestamp: str | None) -> datetime | None
+ discord/guild.py:4723: note:     def parse_time(timestamp: str | None) -> datetime[Any] | None
- discord/ext/tasks/__init__.py:213: error: Incompatible types in assignment (expression has type "datetime", variable has type "None")  [assignment]
+ discord/ext/tasks/__init__.py:213: error: Incompatible types in assignment (expression has type "datetime[Any]", variable has type "None")  [assignment]
- discord/ext/tasks/__init__.py:215: error: Incompatible types in assignment (expression has type "datetime", variable has type "None")  [assignment]
+ discord/ext/tasks/__init__.py:215: error: Incompatible types in assignment (expression has type "datetime[tzinfo]", variable has type "None")  [assignment]
- discord/ext/tasks/__init__.py:223: error: Argument 1 to "_try_sleep_until" of "Loop" has incompatible type "None"; expected "datetime"  [arg-type]
+ discord/ext/tasks/__init__.py:223: error: Argument 1 to "_try_sleep_until" of "Loop" has incompatible type "None"; expected "datetime[Any]"  [arg-type]
- discord/ext/tasks/__init__.py:225: error: Incompatible types in assignment (expression has type "None", variable has type "datetime")  [assignment]
+ discord/ext/tasks/__init__.py:225: error: Incompatible types in assignment (expression has type "None", variable has type "datetime[Any]")  [assignment]
- discord/ext/tasks/__init__.py:226: error: Incompatible types in assignment (expression has type "datetime", variable has type "None")  [assignment]
+ discord/ext/tasks/__init__.py:226: error: Incompatible types in assignment (expression has type "datetime[Any]", variable has type "None")  [assignment]
- discord/ext/tasks/__init__.py:232: error: Unsupported operand types for >= ("datetime" and "None")  [operator]
+ discord/ext/tasks/__init__.py:232: error: No overload variant of "__ge__" of "datetime" matches argument type "None"  [operator]
+ discord/ext/tasks/__init__.py:232: note: Possible overload variants:
+ discord/ext/tasks/__init__.py:232: note:     def __ge__(self, datetime[tzinfo] | datetime[tzinfo | None], /) -> bool
+ discord/ext/tasks/__init__.py:232: note:     def __ge__(self, datetime[None] | datetime[tzinfo | None], /) -> bool
+ discord/ext/tasks/__init__.py:232: note:     def __ge__(self, datetime[Any], /) -> Never
- discord/ext/tasks/__init__.py:243: error: Argument 1 to "_try_sleep_until" of "Loop" has incompatible type "None"; expected "datetime"  [arg-type]
+ discord/ext/tasks/__init__.py:243: error: Argument 1 to "_try_sleep_until" of "Loop" has incompatible type "None"; expected "datetime[Any]"  [arg-type]
- discord/ext/tasks/__init__.py:244: error: Incompatible types in assignment (expression has type "datetime", variable has type "None")  [assignment]
+ discord/ext/tasks/__init__.py:244: error: Incompatible types in assignment (expression has type "datetime[Any]", variable has type "None")  [assignment]
- discord/ext/tasks/__init__.py:267: error: Argument 1 to "_try_sleep_until" of "Loop" has incompatible type "None"; expected "datetime"  [arg-type]
+ discord/ext/tasks/__init__.py:267: error: Argument 1 to "_try_sleep_until" of "Loop" has incompatible type "None"; expected "datetime[Any]"  [arg-type]
- discord/ext/tasks/__init__.py:791: error: Incompatible types in assignment (expression has type "datetime", variable has type "None")  [assignment]
+ discord/ext/tasks/__init__.py:791: error: Incompatible types in assignment (expression has type "datetime[Any]", variable has type "None")  [assignment]
- discord/ext/tasks/__init__.py:794: error: Argument 1 to "recalculate" of "SleepHandle" has incompatible type "None"; expected "datetime"  [arg-type]
+ discord/ext/tasks/__init__.py:794: error: Argument 1 to "recalculate" of "SleepHandle" has incompatible type "None"; expected "datetime[Any]"  [arg-type]

Tanjun (https://github.com/FasterSpeeding/Tanjun)
+ tanjun/schedules.py:1094: error: Need type annotation for "result"  [var-annotated]
+ tanjun/schedules.py:1096: error: Statement is unreachable  [unreachable]

pandera (https://github.com/pandera-dev/pandera)
- pandera/engines/pandas_engine.py:171: note:     def array(data: Sequence[Just[float] | str | datetime | datetime64[Any] | NaTType | None] | ndarray[tuple[Any, ...], dtype[Any]] | DatetimeArray, dtype: DatetimeTZDtype | Literal['datetime64[s, UTC]', 'datetime64[ms, UTC]', 'datetime64[us, UTC]', 'datetime64[ns, UTC]'] | dtype[datetime64[Any]] | Literal['datetime64[s]', 'datetime64[ms]', 'datetime64[us]', 'datetime64[ns]', 'M8[s]', 'M8[ms]', 'M8[us]', 'M8[ns]', '<M8[s]', '<M8[ms]', '<M8[us]', '<M8[ns]'] | dtype[datetime64[Any]], copy: bool = ...) -> DatetimeArray
+ pandera/engines/pandas_engine.py:171: note:     def array(data: Sequence[Just[float] | str | datetime[Any] | datetime64[Any] | NaTType | None] | ndarray[tuple[Any, ...], dtype[Any]] | DatetimeArray, dtype: DatetimeTZDtype | Literal['datetime64[s, UTC]', 'datetime64[ms, UTC]', 'datetime64[us, UTC]', 'datetime64[ns, UTC]'] | dtype[datetime64[Any]] | Literal['datetime64[s]', 'datetime64[ms]', 'datetime64[us]', 'datetime64[ns]', 'M8[s]', 'M8[ms]', 'M8[us]', 'M8[ns]', '<M8[s]', '<M8[ms]', '<M8[us]', '<M8[ns]'] | dtype[datetime64[Any]], copy: bool = ...) -> DatetimeArray
- pandera/engines/pandas_engine.py:171: note:     def array(data: Sequence[datetime | datetime64[Any] | NaTType | None] | ndarray[tuple[Any, ...], dtype[datetime64[Any]]] | DatetimeArray, dtype: None = ..., copy: bool = ...) -> DatetimeArray
+ pandera/engines/pandas_engine.py:171: note:     def array(data: Sequence[datetime[Any] | datetime64[Any] | NaTType | None] | ndarray[tuple[Any, ...], dtype[datetime64[Any]]] | DatetimeArray, dtype: None = ..., copy: bool = ...) -> DatetimeArray
- pandera/engines/pandas_engine.py:171: note:     def array(data: Sequence[datetime | datetime64[Any] | NaTType | None] | ndarray[tuple[Any, ...], dtype[datetime64[Any]]] | DatetimeArray | DatetimeIndex | Series[Timestamp], dtype: Literal['datetime64[s, UTC]', 'datetime64[ms, UTC]', 'datetime64[us, UTC]', 'datetime64[ns, UTC]'] | Literal['datetime64[s]', 'datetime64[ms]', 'datetime64[us]', 'datetime64[ns]', 'M8[s]', 'M8[ms]', 'M8[us]', 'M8[ns]', '<M8[s]', '<M8[ms]', '<M8[us]', '<M8[ns]'] | dtype[datetime64[Any]] | None = ..., copy: bool = ...) -> DatetimeArray
+ pandera/engines/pandas_engine.py:171: note:     def array(data: Sequence[datetime[Any] | datetime64[Any] | NaTType | None] | ndarray[tuple[Any, ...], dtype[datetime64[Any]]] | DatetimeArray | DatetimeIndex | Series[Timestamp], dtype: Literal['datetime64[s, UTC]', 'datetime64[ms, UTC]', 'datetime64[us, UTC]', 'datetime64[ns, UTC]'] | Literal['datetime64[s]', 'datetime64[ms]', 'datetime64[us]', 'datetime64[ns]', 'M8[s]', 'M8[ms]', 'M8[us]', 'M8[ns]', '<M8[s]', '<M8[ms]', '<M8[us]', '<M8[ns]'] | dtype[datetime64[Any]] | None = ..., copy: bool = ...) -> DatetimeArray
- pandera/strategies/pandas_strategies.py:74: note:     def mask(self, cond: Series[Any] | Series[builtins.bool] | ndarray[tuple[Any, ...], dtype[numpy.bool[builtins.bool]]] | Callable[[Series[Any]], Series[builtins.bool]] | Callable[[Any], builtins.bool], other: str | bytes | date | datetime | timedelta | <14 more items> | None = ..., *, inplace: Literal[True], axis: Literal['index', 0] | None = ..., level: Hashable | None = ...) -> None
+ pandera/strategies/pandas_strategies.py:74: note:     def mask(self, cond: Series[Any] | Series[builtins.bool] | ndarray[tuple[Any, ...], dtype[numpy.bool[builtins.bool]]] | Callable[[Series[Any]], Series[builtins.bool]] | Callable[[Any], builtins.bool], other: str | bytes | date | datetime[Any] | timedelta | <14 more items> | None = ..., *, inplace: Literal[True], axis: Literal['index', 0] | None = ..., level: Hashable | None = ...) -> None
- pandera/strategies/pandas_strategies.py:74: note:     def [S2: str | bytes | bool | int | float | complex | <6 more items> | type[str] | list[str] | date | time | datetime | timedelta] mask(self, cond: Series[Any] | Series[builtins.bool] | ndarray[tuple[Any, ...], dtype[numpy.bool[builtins.bool]]] | Callable[[Series[Any]], Series[builtins.bool]] | Callable[[Any], builtins.bool], other: S2 | Series[S2] | Callable[..., S2], *, inplace: Literal[False] = ..., axis: Literal['index', 0] | None = ..., level: Hashable | None = ...) -> Series[S2]
+ pandera/strategies/pandas_strategies.py:74: note:     def [S2: str | bytes | bool | int | float | complex | <6 more items> | type[str] | list[str] | date | time | datetime[Any] | timedelta] mask(self, cond: Series[Any] | Series[builtins.bool] | ndarray[tuple[Any, ...], dtype[numpy.bool[builtins.bool]]] | Callable[[Series[Any]], Series[builtins.bool]] | Callable[[Any], builtins.bool], other: S2 | Series[S2] | Callable[..., S2], *, inplace: Literal[False] = ..., axis: Literal['index', 0] | None = ..., level: Hashable | None = ...) -> Series[S2]
- pandera/strategies/pandas_strategies.py:76: note:     def mask(self, cond: Series[Any] | Series[builtins.bool] | ndarray[tuple[Any, ...], dtype[numpy.bool[builtins.bool]]] | Callable[[Series[Any]], Series[builtins.bool]] | Callable[[Any], builtins.bool], other: str | bytes | date | datetime | timedelta | <14 more items> | None = ..., *, inplace: Literal[True], axis: Literal['index', 0] | None = ..., level: Hashable | None = ...) -> None
+ pandera/strategies/pandas_strategies.py:76: note:     def mask(self, cond: Series[Any] | Series[builtins.bool] | ndarray[tuple[Any, ...], dtype[numpy.bool[builtins.bool]]] | Callable[[Series[Any]], Series[builtins.bool]] | Callable[[Any], builtins.bool], other: str | bytes | date | datetime[Any] | timedelta | <14 more items> | None = ..., *, inplace: Literal[True], axis: Literal['index', 0] | None = ..., level: Hashable | None = ...) -> None
- pandera/strategies/pandas_strategies.py:76: note:     def [S2: str | bytes | bool | int | float | complex | <6 more items> | type[str] | list[str] | date | time | datetime | timedelta] mask(self, cond: Series[Any] | Series[builtins.bool] | ndarray[tuple[Any, ...], dtype[numpy.bool[builtins.bool]]] | Callable[[Series[Any]], Series[builtins.bool]] | Callable[[Any], builtins.bool], other: S2 | Series[S2] | Callable[..., S2], *, inplace: Literal[False] = ..., axis: Literal['index', 0] | None = ..., level: Hashable | None = ...) -> Series[S2]
+ pandera/strategies/pandas_strategies.py:76: note:     def [S2: str | bytes | bool | int | float | complex | <6 more items> | type[str] | list[str] | date | time | datetime[Any] | timedelta] mask(self, cond: Series[Any] | Series[builtins.bool] | ndarray[tuple[Any, ...], dtype[numpy.bool[builtins.bool]]] | Callable[[Series[Any]], Series[builtins.bool]] | Callable[[Any], builtins.bool], other: S2 | Series[S2] | Callable[..., S2], *, inplace: Literal[False] = ..., axis: Literal['index', 0] | None = ..., level: Hashable | None = ...) -> Series[S2]
- pandera/strategies/pandas_strategies.py:77: note:     def mask(self, cond: Series[Any] | Series[builtins.bool] | ndarray[tuple[Any, ...], dtype[numpy.bool[builtins.bool]]] | Callable[[Series[Any]], Series[builtins.bool]] | Callable[[Any], builtins.bool], other: str | bytes | date | datetime | timedelta | <14 more items> | None = ..., *, inplace: Literal[True], axis: Literal['index', 0] | None = ..., level: Hashable | None = ...) -> None
+ pandera/strategies/pandas_strategies.py:77: note:     def mask(self, cond: Series[Any] | Series[builtins.bool] | ndarray[tuple[Any, ...], dtype[numpy.bool[builtins.bool]]] | Callable[[Series[Any]], Series[builtins.bool]] | Callable[[Any], builtins.bool], other: str | bytes | date | datetime[Any] | timedelta | <14 more items> | None = ..., *, inplace: Literal[True], axis: Literal['index', 0] | None = ..., level: Hashable | None = ...) -> None
- pandera/strategies/pandas_strategies.py:77: note:     def [S2: str | bytes | bool | int | float | complex | <6 more items> | type[str] | list[str] | date | time | datetime | timedelta] mask(self, cond: Series[Any] | Series[builtins.bool] | ndarray[tuple[Any, ...], dtype[numpy.bool[builtins.bool]]] | Callable[[Series[Any]], Series[builtins.bool]] | Callable[[Any], builtins.bool], other: S2 | Series[S2] | Callable[..., S2], *, inplace: Literal[False] = ..., axis: Literal['index', 0] | None = ..., level: Hashable | None = ...) -> Series[S2]
+ pandera/strategies/pandas_strategies.py:77: note:     def [S2: str | bytes | bool | int | float | complex | <6 more items> | type[str] | list[str] | date | time | datetime[Any] | timedelta] mask(self, cond: Series[Any] | Series[builtins.bool] | ndarray[tuple[Any, ...], dtype[numpy.bool[builtins.bool]]] | Callable[[Series[Any]], Series[builtins.bool]] | Callable[[Any], builtins.bool], other: S2 | Series[S2] | Callable[..., S2], *, inplace: Literal[False] = ..., axis: Literal['index', 0] | None = ..., level: Hashable | None = ...) -> Series[S2]

pandas-stubs (https://github.com/pandas-dev/pandas-stubs)
+ pandas-stubs/_libs/tslibs/timestamps.pyi:276: error: Signatures of "__rsub__" of "Timestamp" and "__sub__" of "datetime[Any] | datetime64[Any]" are unsafely overlapping  [misc]
- tests/frame/test_indexing.py:907: error: Invalid index type "tuple[slice[None, None, None], set[str]]" for "_LocIndexerFrame[DataFrame]"; expected type "tuple[tuple[IndexOpsMixin[Any, Any] | Series[builtins.bool] | ndarray[tuple[Any, ...], dtype[numpy.bool[builtins.bool]]] | list[builtins.bool] | str | bytes | date | datetime | timedelta | <7 more items> | complex | integer[Any] | floating[Any] | complexfloating[Any, Any] | Sequence[str | bytes | date | datetime | timedelta | <7 more items> | complex | integer[Any] | floating[Any] | complexfloating[Any, Any]] | slice[Any, Any, Any], ...], Hashable]"  [index]
+ tests/frame/test_indexing.py:907: error: Invalid index type "tuple[slice[None, None, None], set[str]]" for "_LocIndexerFrame[DataFrame]"; expected type "tuple[tuple[IndexOpsMixin[Any, Any] | Series[builtins.bool] | ndarray[tuple[Any, ...], dtype[numpy.bool[builtins.bool]]] | list[builtins.bool] | str | bytes | date | datetime[Any] | timedelta | <7 more items> | complex | integer[Any] | floating[Any] | complexfloating[Any, Any] | Sequence[str | bytes | date | datetime[Any] | timedelta | <7 more items> | complex | integer[Any] | floating[Any] | complexfloating[Any, Any]] | slice[Any, Any, Any], ...], Hashable]"  [index]
- tests/frame/test_indexing.py:908: error: Invalid index type "tuple[slice[None, None, None], dict[str, int]]" for "_LocIndexerFrame[DataFrame]"; expected type "tuple[tuple[IndexOpsMixin[Any, Any] | Series[builtins.bool] | ndarray[tuple[Any, ...], dtype[numpy.bool[builtins.bool]]] | list[builtins.bool] | str | bytes | date | datetime | timedelta | <7 more items> | complex | integer[Any] | floating[Any] | complexfloating[Any, Any] | Sequence[str | bytes | date | datetime | timedelta | <7 more items> | complex | integer[Any] | floating[Any] | complexfloating[Any, Any]] | slice[Any, Any, Any], ...], Hashable]"  [index]
+ tests/frame/test_indexing.py:908: error: Invalid index type "tuple[slice[None, None, None], dict[str, int]]" for "_LocIndexerFrame[DataFrame]"; expected type "tuple[tuple[IndexOpsMixin[Any, Any] | Series[builtins.bool] | ndarray[tuple[Any, ...], dtype[numpy.bool[builtins.bool]]] | list[builtins.bool] | str | bytes | date | datetime[Any] | timedelta | <7 more items> | complex | integer[Any] | floating[Any] | complexfloating[Any, Any] | Sequence[str | bytes | date | datetime[Any] | timedelta | <7 more items> | complex | integer[Any] | floating[Any] | complexfloating[Any, Any]] | slice[Any, Any, Any], ...], Hashable]"  [index]
+ tests/test_timefuncs.py:907: error: Expression is of type "datetime[None]", not "datetime[Any]"  [assert-type]
+ tests/scalars/test_scalars.py:555: error: Expression is of type "datetime[None]", not "datetime[Any]"  [assert-type]
+ tests/scalars/test_scalars.py:596: error: Expression is of type "datetime[None]", not "datetime[Any]"  [assert-type]
+ tests/scalars/test_scalars.py:1062: error: Expression is of type "Any", not "tzinfo | None"  [assert-type]
+ tests/arrays/test_datetime_array.py:94: error: Expression is of type "Any", not "DatetimeArray"  [assert-type]
+ tests/arrays/test_datetime_array.py:321: error: Expression is of type "Any", not "DatetimeArray"  [assert-type]
+ tests/arrays/test_datetime_array.py:326: error: Expression is of type "Any", not "DatetimeArray"  [assert-type]
+ tests/arrays/test_datetime_array.py:327: error: Expression is of type "Any", not "DatetimeArray"  [assert-type]

cloud-init (https://github.com/canonical/cloud-init)
+ cloudinit/distros/alpine.py:347: error: Need type annotation for "days"  [var-annotated]

bokeh (https://github.com/bokeh/bokeh)
- src/bokeh/util/serialization.py:177:1: error: Argument 1 to "convert_datetime_type" becomes "Any | Any | Any | datetime | date | time | datetime64[Any]" due to an unfollowed import  [no-any-unimported]
+ src/bokeh/util/serialization.py:177:1: error: Argument 1 to "convert_datetime_type" becomes "Any | Any | Any | datetime[Any] | date | time | datetime64[Any]" due to an unfollowed import  [no-any-unimported]

tornado (https://github.com/tornadoweb/tornado)
+ tornado/test/locale_test.py:103: error: Unsupported operand types for - ("object" and "timedelta")  [operator]
+ tornado/test/locale_test.py:103: error: Argument 1 to "format_date" of "Locale" has incompatible type "timedelta"; expected "int | float | datetime[Any]"  [arg-type]
+ tornado/test/locale_test.py:109: error: Unsupported operand types for - ("object" and "timedelta")  [operator]
+ tornado/test/locale_test.py:109: error: Argument 1 to "format_date" of "Locale" has incompatible type "timedelta"; expected "int | float | datetime[Any]"  [arg-type]
+ tornado/test/locale_test.py:115: error: Unsupported operand types for - ("object" and "timedelta")  [operator]
+ tornado/test/locale_test.py:115: error: Argument 1 to "format_date" of "Locale" has incompatible type "timedelta"; expected "int | float | datetime[Any]"  [arg-type]
+ tornado/test/locale_test.py:122: error: Unsupported operand types for - ("object" and "timedelta")  [operator]
+ tornado/test/locale_test.py:122: error: Argument 1 to "format_date" of "Locale" has incompatible type "timedelta"; expected "int | float | datetime[Any]"  [arg-type]
+ tornado/test/locale_test.py:129: error: Unsupported operand types for - ("object" and "timedelta")  [operator]
+ tornado/test/locale_test.py:129: error: Incompatible types in assignment (expression has type "timedelta", variable has type "datetime[None]")  [assignment]
+ tornado/test/locale_test.py:135: error: Unsupported operand types for - ("object" and "timedelta")  [operator]

... (truncated 187 lines) ...```

@hauntsaninja

hauntsaninja commented Nov 5, 2026

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Looked through a little of primer, some of the "need type annotation" ones seem bad:

import datetime as dt
a = dt.datetime.fromisoformat("2026-01-02")
b = dt.datetime.fromisoformat("2026-01-01")
reveal_type(a - b)  # Never

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@hauntsaninja hauntsaninja Awaiting requested review from hauntsaninja

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@cdce8p @hauntsaninja