[ty] Use partially qualified names when reporting diagnostics regarding bad calls to methods by AlexWaygood · Pull Request #24560 · astral-sh/ruff

AlexWaygood · 2026-04-11T14:49:19Z

Summary

Currently if you do this:

class Foo: ...

Foo(x=42)

Our concise diagnostic is this:

foo.py:3:5: error[unknown-argument] Argument `x` does not match any known parameter of bound method `__init__`

Which is a bit baffling for a user. What __init__ method, defined on which superclass?

If you use our default output format, we tell you which file and line the __init__ method is defined in, but it's still pretty hard to figure out what class that method is defined in unless you're in an IDE and can jump there:

error[unknown-argument]: Argument `x` does not match any known parameter of bound method `__init__`
 --> foo.py:3:5
  |
1 | class Foo: ...
2 |
3 | Foo(x=42)
  |     ^^^^
  |
info: Method signature here
   --> stdlib/builtins.pyi:136:9
    |
134 |     @__class__.setter
135 |     def __class__(self, type: type[Self], /) -> None: ...
136 |     def __init__(self) -> None: ...
    |         ^^^^^^^^^^^^^^^^^^^^^^
137 |     def __new__(cls) -> Self: ...
138 |     # N.B. `object.__setattr__` and `object.__delattr__` are heavily special-cased by type checkers.
    |

This PR adjusts our call-binding machinery to use partially qualified names when reporting bad calls to methods. I think this makes our diagnostics significantly more comprehensible, and helps a lot with astral-sh/ty#2482. It should also hopefully make some of the diagnostics in #24550 less bafflingly worded.

Test Plan

mdtests and snapshots updated.

astral-sh-bot · 2026-04-11T14:51:03Z

Typing conformance results

The percentage of diagnostics emitted that were expected errors held steady at 87.94%. The percentage of expected errors that received a diagnostic held steady at 83.21%. The number of fully passing files held steady at 79/133.

Summary

How are test cases classified?

Each test case represents one expected error annotation or a group of annotations sharing a tag. Counts are per test case, not per diagnostic — multiple diagnostics on the same line count as one. Required annotations (E) are true positives when ty flags the expected location and false negatives when it does not. Optional annotations (E?) are true positives when flagged but true negatives (not false negatives) when not. Tagged annotations (E[tag]) require ty to flag exactly one of the tagged lines; tagged multi-annotations (E[tag+]) allow any number up to the tag count. Flagging unexpected locations counts as a false positive.

Metric	Old	New	Diff
True Positives	882	882	+0
False Positives	121	121	+0
False Negatives	178	178	+0
Total Diagnostics	1053	1053	+0
Precision	87.94%	87.94%	+0.00%
Recall	83.21%	83.21%	+0.00%
Passing Files	79/133	79/133	+0

True positives changed (27)

27 diagnostics

Test case	Diff
constructors_call_init.py:130	-error[too-many-positional-arguments] Too many positional arguments to bound method `__init__`: expected 1, got 2 +error[too-many-positional-arguments] Too many positional arguments to `object.__init__`: expected 1, got 2
constructors_call_init.py:21	-error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `int`, found `float` +error[invalid-argument-type] Argument to `Class1.__init__` is incorrect: Expected `int`, found `float`
constructors_call_init.py:56	-error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `Class4[int]`, found `Class4[str]` +error[invalid-argument-type] Argument to `Class4.__init__` is incorrect: Expected `Class4[int]`, found `Class4[str]`
constructors_call_metaclass.py:54	-error[missing-argument] No argument provided for required parameter `x` of function `__new__` +error[missing-argument] No argument provided for required parameter `x` of constructor `Class3.__new__`
constructors_call_metaclass.py:68	-error[missing-argument] No argument provided for required parameter `x` of function `__new__` +error[missing-argument] No argument provided for required parameter `x` of constructor `Class4.__new__`
constructors_call_new.py:148	-error[invalid-argument-type] Argument to function `__new__` is incorrect: Expected `type[Class11[int]]`, found `<class 'Class11[str]'>` +error[invalid-argument-type] Argument to constructor `Class11.__new__` is incorrect: Expected `type[Class11[int]]`, found `<class 'Class11[str]'>`
constructors_call_new.py:21	-error[invalid-argument-type] Argument to function `__new__` is incorrect: Expected `int`, found `float` +error[invalid-argument-type] Argument to constructor `Class1.__new__` is incorrect: Expected `int`, found `float`
constructors_call_type.py:30	-error[missing-argument] No arguments provided for required parameters `x`, `y` of bound method `__call__` +error[missing-argument] No arguments provided for required parameters `x`, `y` of bound method `Meta1.__call__`
constructors_call_type.py:40	-error[missing-argument] No arguments provided for required parameters `x`, `y` of function `__new__` +error[missing-argument] No arguments provided for required parameters `x`, `y` of constructor `Class2.__new__`
constructors_call_type.py:50	-error[missing-argument] No arguments provided for required parameters `x`, `y` of bound method `__init__` +error[missing-argument] No arguments provided for required parameters `x`, `y` of `Class3.__init__`
constructors_call_type.py:59	-error[too-many-positional-arguments] Too many positional arguments to bound method `__init__`: expected 1, got 2 +error[too-many-positional-arguments] Too many positional arguments to `object.__init__`: expected 1, got 2
constructors_call_type.py:72	-error[missing-argument] No arguments provided for required parameters `x`, `y` of bound method `__call__` +error[missing-argument] No arguments provided for required parameters `x`, `y` of bound method `Meta1.__call__`
constructors_call_type.py:81	-error[missing-argument] No argument provided for required parameter `y` of function `__new__` +error[missing-argument] No argument provided for required parameter `y` of constructor `Class2.__new__`
constructors_call_type.py:82	-error[invalid-argument-type] Argument to function `__new__` is incorrect: Expected `str`, found `Literal[2]` +error[invalid-argument-type] Argument to constructor `Class2.__new__` is incorrect: Expected `str`, found `Literal[2]`
dataclasses_usage.py:130	-error[missing-argument] No argument provided for required parameter `y` of bound method `__init__` +error[missing-argument] No argument provided for required parameter `y` of `DC8.__init__`
dataclasses_usage.py:179	-error[too-many-positional-arguments] Too many positional arguments to bound method `__init__`: expected 1, got 2 +error[too-many-positional-arguments] Too many positional arguments to `object.__init__`: expected 1, got 2
generics_defaults_referential.py:37	-error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `int`, found `str` +error[invalid-argument-type] Argument to `Foo.__init__` is incorrect: Expected `int`, found `str`
generics_defaults_referential.py:38	-error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `int`, found `str` +error[invalid-argument-type] Argument to `Foo.__init__` is incorrect: Expected `int`, found `str`
generics_scoping.py:34	-error[invalid-argument-type] Argument to bound method `meth_2` is incorrect: Expected `int`, found `Literal["a"]` +error[invalid-argument-type] Argument to bound method `MyClass.meth_2` is incorrect: Expected `int`, found `Literal["a"]`
generics_type_erasure.py:38	-error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `int \| None`, found `Literal[""]` +error[invalid-argument-type] Argument to `Node.__init__` is incorrect: Expected `int \| None`, found `Literal[""]`
generics_type_erasure.py:40	-error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `str \| None`, found `Literal[0]` +error[invalid-argument-type] Argument to `Node.__init__` is incorrect: Expected `str \| None`, found `Literal[0]`
generics_typevartuple_basic.py:42	-error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `tuple[@Todo(TypeVarTuple), ...]`, found `Height` +error[invalid-argument-type] Argument to `Array.__init__` is incorrect: Expected `tuple[@Todo(TypeVarTuple), ...]`, found `Height`
generics_typevartuple_basic.py:65	-error[unknown-argument] Argument `covariant` does not match any known parameter of function `__new__` +error[unknown-argument] Argument `covariant` does not match any known parameter of constructor `TypeVarTuple.__new__`
generics_typevartuple_basic.py:66	-error[too-many-positional-arguments] Too many positional arguments to function `__new__`: expected 2, got 4 +error[too-many-positional-arguments] Too many positional arguments to constructor `TypeVarTuple.__new__`: expected 2, got 4
generics_typevartuple_basic.py:67	-error[unknown-argument] Argument `bound` does not match any known parameter of function `__new__` +error[unknown-argument] Argument `bound` does not match any known parameter of constructor `TypeVarTuple.__new__`
historical_positional.py:59	-error[positional-only-parameter-as-kwarg] Positional-only parameter 2 (`__x`) passed as keyword argument of bound method `m1` +error[positional-only-parameter-as-kwarg] Positional-only parameter 2 (`__x`) passed as keyword argument of bound method `A.m1`
literals_literalstring.py:133	-error[invalid-assignment] Object of type `Container[T@Container]` is not assignable to `Container[LiteralString]` -error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Argument type `str` does not satisfy upper bound `LiteralString` of type variable `T` -error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `LiteralString`, found `str` +error[invalid-assignment] Object of type `Container[T@Container]` is not assignable to `Container[LiteralString]` +error[invalid-argument-type] Argument to `Container.__init__` is incorrect: Argument type `str` does not satisfy upper bound `LiteralString` of type variable `T` +error[invalid-argument-type] Argument to `Container.__init__` is incorrect: Expected `LiteralString`, found `str`

astral-sh-bot · 2026-04-11T14:51:48Z

Memory usage report

Memory usage unchanged ✅

astral-sh-bot · 2026-04-11T14:53:00Z

`ecosystem-analyzer` results

Lint rule	Added	Removed	Changed
`invalid-argument-type`	0	339	9,100
`unknown-argument`	0	0	1,490
`no-matching-overload`	111	0	1,160
`too-many-positional-arguments`	0	0	407
`missing-argument`	0	0	383
`parameter-already-assigned`	0	0	35
`positional-only-parameter-as-kwarg`	0	0	1
Total	111	339	12,576

Showing a random sample of 164 of 13026 changes. See the HTML report for the full diff.

Raw diff sample (164 of 13026 changes)

alerta (https://github.com/alerta/alerta)
- alerta/auth/decorators.py:51:47 error[invalid-argument-type] Argument to bound method `is_in_scope` is incorrect: Expected `str`, found `Unknown | None`
+ alerta/auth/decorators.py:51:47 error[invalid-argument-type] Argument to bound method `Permission.is_in_scope` is incorrect: Expected `str`, found `Unknown | None`

apprise (https://github.com/caronc/apprise)
- tests/test_api.py:881:31 error[invalid-argument-type] Argument to function `schemas` is incorrect: Expected `URLBase`, found `<class 'HtmlNotification'>`
+ tests/test_api.py:881:31 error[invalid-argument-type] Argument to function `URLBase.schemas` is incorrect: Expected `URLBase`, found `<class 'HtmlNotification'>`
- tests/test_escapes.py:231:21 error[invalid-argument-type] Argument to bound method `notify` is incorrect: Expected `str | bytes`, found `None`
+ tests/test_escapes.py:231:21 error[invalid-argument-type] Argument to bound method `Apprise.notify` is incorrect: Expected `str | bytes`, found `None`
- tests/test_plugin_custom_form.py:428:36 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `str | list[str | AttachBase | AppriseAttachment] | None`, found `tuple[str, str, str]`
+ tests/test_plugin_custom_form.py:428:36 error[invalid-argument-type] Argument to `AppriseAttachment.__init__` is incorrect: Expected `str | list[str | AttachBase | AppriseAttachment] | None`, found `tuple[str, str, str]`
- tests/test_plugin_xmpp.py:811:9 error[unknown-argument] Argument `secure` does not match any known parameter of bound method `__init__`
+ tests/test_plugin_xmpp.py:811:9 error[unknown-argument] Argument `secure` does not match any known parameter of `object.__init__`
- tests/test_plugin_xmpp.py:1825:9 error[unknown-argument] Argument `verify_certificate` does not match any known parameter of bound method `__init__`
+ tests/test_plugin_xmpp.py:1825:9 error[unknown-argument] Argument `verify_certificate` does not match any known parameter of `object.__init__`
- tests/test_plugin_xmpp.py:1965:9 error[unknown-argument] Argument `verify_certificate` does not match any known parameter of bound method `__init__`
+ tests/test_plugin_xmpp.py:1965:9 error[unknown-argument] Argument `verify_certificate` does not match any known parameter of `object.__init__`
- tests/test_plugin_xmpp.py:2191:9 error[unknown-argument] Argument `verify_certificate` does not match any known parameter of bound method `__init__`
+ tests/test_plugin_xmpp.py:2191:9 error[unknown-argument] Argument `verify_certificate` does not match any known parameter of `object.__init__`

bokeh (https://github.com/bokeh/bokeh)
- src/bokeh/models/glyphs.py:823:40 error[too-many-positional-arguments] Too many positional arguments to bound method `__init__`: expected 1, got 2
+ src/bokeh/models/glyphs.py:823:40 error[too-many-positional-arguments] Too many positional arguments to `LinearColorMapper.__init__`: expected 1, got 2

cloud-init (https://github.com/canonical/cloud-init)
- cloudinit/analyze/__init__.py:224:24 error[no-matching-overload] No overload of function `__new__` matches arguments
+ cloudinit/analyze/__init__.py:224:24 error[no-matching-overload] No overload of constructor `filter.__new__` matches arguments

core (https://github.com/home-assistant/core)
- homeassistant/components/media_player/__init__.py:1027:52 error[invalid-argument-type] Argument to bound method `async_add_executor_job` is incorrect: Expected `(...) -> Unknown`, found `object`
+ homeassistant/components/media_player/__init__.py:1027:52 error[invalid-argument-type] Argument to bound method `HomeAssistant.async_add_executor_job` is incorrect: Expected `(...) -> Unknown`, found `object`
- homeassistant/components/onvif/device.py:508:30 error[no-matching-overload] No overload of bound method `get` matches arguments
+ homeassistant/components/onvif/device.py:508:30 error[no-matching-overload] No overload of bound method `dict.get` matches arguments
- homeassistant/components/plex/media_browser.py:373:24 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `bool`, found `Unknown | str | bool`
+ homeassistant/components/plex/media_browser.py:373:24 error[invalid-argument-type] Argument to `BrowseMedia.__init__` is incorrect: Expected `bool`, found `Unknown | str | bool`
- homeassistant/components/recorder/db_schema.py:676:13 error[unknown-argument] Argument `mean_weight` does not match any known parameter of bound method `__init__`
+ homeassistant/components/recorder/db_schema.py:676:13 error[unknown-argument] Argument `mean_weight` does not match any known parameter of `object.__init__`
- homeassistant/components/recorder/executor.py:54:19 error[invalid-argument-type] Argument to bound method `put` is incorrect: Expected `_WorkItem[Any]`, found `None`
+ homeassistant/components/recorder/executor.py:54:19 error[invalid-argument-type] Argument to bound method `SimpleQueue.put` is incorrect: Expected `_WorkItem[Any]`, found `None`
- homeassistant/util/hass_dict.pyi:165:18 error[invalid-argument-type] Argument to bound method `setdefault` is incorrect: Expected `str`, found `HassKey[int]`
+ homeassistant/util/hass_dict.pyi:165:18 error[invalid-argument-type] Argument to bound method `HassDict.setdefault` is incorrect: Expected `str`, found `HassKey[int]`

cryptography (https://github.com/pyca/cryptography)
- tests/hazmat/primitives/test_ec.py:200:43 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `EllipticCurvePublicNumbers`, found `None`
+ tests/hazmat/primitives/test_ec.py:200:43 error[invalid-argument-type] Argument to `EllipticCurvePrivateNumbers.__init__` is incorrect: Expected `EllipticCurvePublicNumbers`, found `None`
- tests/hazmat/primitives/test_ec.py:1059:17 error[invalid-argument-type] Argument to bound method `private_bytes` is incorrect: Expected `KeySerializationEncryption`, found `Literal["notanencalg"]`
+ tests/hazmat/primitives/test_ec.py:1059:17 error[invalid-argument-type] Argument to bound method `EllipticCurvePrivateKey.private_bytes` is incorrect: Expected `KeySerializationEncryption`, found `Literal["notanencalg"]`
- tests/hazmat/primitives/test_ed448.py:208:17 error[invalid-argument-type] Argument to bound method `private_bytes` is incorrect: Expected `KeySerializationEncryption`, found `None`
+ tests/hazmat/primitives/test_ed448.py:208:17 error[invalid-argument-type] Argument to bound method `Ed448PrivateKey.private_bytes` is incorrect: Expected `KeySerializationEncryption`, found `None`
- tests/hazmat/primitives/test_hpke.py:53:19 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `KEM`, found `Literal["not a kem"]`
+ tests/hazmat/primitives/test_hpke.py:53:19 error[invalid-argument-type] Argument to `Suite.__init__` is incorrect: Expected `KEM`, found `Literal["not a kem"]`
- tests/hazmat/primitives/test_kbkdf.py:702:17 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `int | None`, found `Literal[b"l"]`
+ tests/hazmat/primitives/test_kbkdf.py:702:17 error[invalid-argument-type] Argument to `KBKDFCMAC.__init__` is incorrect: Expected `int | None`, found `Literal[b"l"]`
- tests/hazmat/primitives/test_x25519.py:183:26 error[invalid-argument-type] Argument to bound method `exchange` is incorrect: Expected `X25519PublicKey`, found `object`
+ tests/hazmat/primitives/test_x25519.py:183:26 error[invalid-argument-type] Argument to bound method `X25519PrivateKey.exchange` is incorrect: Expected `X25519PublicKey`, found `object`
- tests/x509/test_x509.py:5462:17 error[invalid-argument-type] Argument to bound method `sign` is incorrect: Expected `PSS | PKCS1v15 | None`, found `Literal[b"notapadding"]`
+ tests/x509/test_x509.py:5462:17 error[invalid-argument-type] Argument to bound method `CertificateSigningRequestBuilder.sign` is incorrect: Expected `PSS | PKCS1v15 | None`, found `Literal[b"notapadding"]`
- tests/x509/test_x509_ext.py:7284:17 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `Iterable[Admission]`, found `list[None]`
+ tests/x509/test_x509_ext.py:7284:17 error[invalid-argument-type] Argument to `Admissions.__init__` is incorrect: Expected `Iterable[Admission]`, found `list[None]`

dd-trace-py (https://github.com/DataDog/dd-trace-py)
- benchmarks/recursive_computation/scenario.py:36:45 error[invalid-argument-type] Argument to bound method `set_tag` is incorrect: Expected `str | None`, found `int`
+ benchmarks/recursive_computation/scenario.py:36:45 error[invalid-argument-type] Argument to bound method `Span.set_tag` is incorrect: Expected `str | None`, found `int`
- ddtrace/appsec/_common_module_patches.py:195:45 error[invalid-argument-type] Argument to function `__new__` is incorrect: Expected `FrameType`, found `FrameType | None`
+ ddtrace/appsec/_common_module_patches.py:195:45 error[invalid-argument-type] Argument to constructor `TracebackType.__new__` is incorrect: Expected `FrameType`, found `FrameType | None`
- ddtrace/appsec/_iast/_ast/visitor.py:460:21 error[unknown-argument] Argument `col_offset` does not match any known parameter of bound method `__init__`
+ ddtrace/appsec/_iast/_ast/visitor.py:460:21 error[unknown-argument] Argument `col_offset` does not match any known parameter of `alias.__init__`
- ddtrace/contrib/internal/aiobotocore/patch.py:44:33 error[no-matching-overload] No overload of bound method `get` matches arguments
+ ddtrace/contrib/internal/aiobotocore/patch.py:44:33 error[no-matching-overload] No overload of bound method `Mapping.get` matches arguments
- ddtrace/contrib/internal/botocore/patch.py:109:39 error[no-matching-overload] No overload of bound method `get` matches arguments
+ ddtrace/contrib/internal/botocore/patch.py:109:39 error[no-matching-overload] No overload of bound method `Mapping.get` matches arguments
- ddtrace/contrib/internal/graphql/patch.py:71:34 error[no-matching-overload] No overload of bound method `get` matches arguments
+ ddtrace/contrib/internal/graphql/patch.py:71:34 error[no-matching-overload] No overload of bound method `Mapping.get` matches arguments
- ddtrace/contrib/internal/subprocess/patch.py:30:30 error[no-matching-overload] No overload of bound method `get` matches arguments
+ ddtrace/contrib/internal/subprocess/patch.py:30:30 error[no-matching-overload] No overload of bound method `Mapping.get` matches arguments
- ddtrace/debugging/_signal/snapshot.py:99:24 error[missing-argument] No argument provided for required parameter `self` of function `trickling`
+ ddtrace/debugging/_signal/snapshot.py:99:24 error[missing-argument] No argument provided for required parameter `self` of function `HourGlass.trickling`
- ddtrace/internal/ci_visibility/recorder.py:491:23 error[no-matching-overload] No overload of bound method `get` matches arguments
+ ddtrace/internal/ci_visibility/recorder.py:491:23 error[no-matching-overload] No overload of bound method `Mapping.get` matches arguments
- ddtrace/internal/telemetry/writer.py:383:46 error[invalid-argument-type] Argument to bound method `flush` is incorrect: Expected `int`, found `EnvVariable[int]`
+ ddtrace/internal/telemetry/writer.py:383:46 error[invalid-argument-type] Argument to bound method `HttpEndPointsCollection.flush` is incorrect: Expected `int`, found `EnvVariable[int]`
- ddtrace/vendor/psutil/setup.py:396:9 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `str | None`, found `bool | Unknown`
- tests/ci_visibility/test_encoder.py:629:40 error[invalid-argument-type] Argument to function `__new__` is incorrect: Expected `str | Buffer | SupportsInt | SupportsIndex | SupportsTrunc`, found `str | None`
+ tests/ci_visibility/test_encoder.py:629:40 error[invalid-argument-type] Argument to constructor `int.__new__` is incorrect: Expected `str | Buffer | SupportsInt | SupportsIndex | SupportsTrunc`, found `str | None`
- tests/contrib/dbapi/test_dbapi.py:247:51 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `Pin | None`, found `dict[Unknown, Unknown]`
+ tests/contrib/dbapi/test_dbapi.py:247:51 error[invalid-argument-type] Argument to `TracedCursor.__init__` is incorrect: Expected `Pin | None`, found `dict[Unknown, Unknown]`
- tests/contrib/grpc/test_grpc.py:637:17 error[invalid-argument-type] Argument to function `__new__` is incorrect: Expected `str`, found `None`
+ tests/contrib/grpc/test_grpc.py:637:17 error[invalid-argument-type] Argument to constructor `SpanData.__new__` is incorrect: Expected `str`, found `None`
- tests/contrib/wsgi/test_wsgi.py:319:74 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `bool`, found `None`
+ tests/contrib/wsgi/test_wsgi.py:319:74 error[invalid-argument-type] Argument to `_DDWSGIMiddlewareBase.__init__` is incorrect: Expected `bool`, found `None`
- tests/tracer/test_span.py:676:38 error[invalid-argument-type] Argument to bound method `set_exc_info` is incorrect: Expected `BaseException`, found `BaseException | None`
+ tests/tracer/test_span.py:676:38 error[invalid-argument-type] Argument to bound method `Span.set_exc_info` is incorrect: Expected `BaseException`, found `BaseException | None`
- tests/tracer/test_span_tags.py:120:25 error[invalid-argument-type] Argument to bound method `set_metric` is incorrect: Expected `int | float`, found `None | dict[Unknown, Unknown] | list[Unknown] | ... omitted 5 union elements`
+ tests/tracer/test_span_tags.py:120:25 error[invalid-argument-type] Argument to bound method `Span.set_metric` is incorrect: Expected `int | float`, found `None | dict[Unknown, Unknown] | list[Unknown] | ... omitted 5 union elements`

discord.py (https://github.com/Rapptz/discord.py)
- discord/ext/commands/flags.py:388:18 error[no-matching-overload] No overload of bound method `join` matches arguments
+ discord/ext/commands/flags.py:388:18 error[no-matching-overload] No overload of bound method `str.join` matches arguments
- discord/interactions.py:260:92 error[invalid-argument-type] Argument to bound method `format_map` is incorrect: Expected `_FormatMapMapping`, found `TextChannel | NewsChannel | VoiceChannel | ... omitted 7 union elements`
+ discord/interactions.py:260:92 error[invalid-argument-type] Argument to bound method `str.format_map` is incorrect: Expected `_FormatMapMapping`, found `TextChannel | NewsChannel | VoiceChannel | ... omitted 7 union elements`
- discord/state.py:1119:32 error[invalid-argument-type] Argument to function `store_user` is incorrect: Expected `Self@parse_guild_member_remove`, found `User`
+ discord/state.py:1119:32 error[invalid-argument-type] Argument to function `ConnectionState.store_user` is incorrect: Expected `Self@parse_guild_member_remove`, found `User`

graphql-core (https://github.com/graphql-python/graphql-core)
- src/graphql/language/parser.py:763:13 error[unknown-argument] Argument `description` does not match any known parameter of bound method `__init__`
+ src/graphql/language/parser.py:763:13 error[unknown-argument] Argument `description` does not match any known parameter of `object.__init__`
- src/graphql/utilities/value_from_ast.py:139:46 error[invalid-argument-type] Argument to function `parse_literal` is incorrect: Expected `GraphQLScalarType`, found `ValueNode & ~AlwaysFalsy & ~VariableNode & ~NullValueNode`
+ src/graphql/utilities/value_from_ast.py:139:46 error[invalid-argument-type] Argument to function `GraphQLScalarType.parse_literal` is incorrect: Expected `GraphQLScalarType`, found `ValueNode & ~AlwaysFalsy & ~VariableNode & ~NullValueNode`
- tests/utilities/test_type_info.py:346:25 error[unknown-argument] Argument `arguments` does not match any known parameter of bound method `__init__`
+ tests/utilities/test_type_info.py:346:25 error[unknown-argument] Argument `arguments` does not match any known parameter of `object.__init__`

hydpy (https://github.com/hydpy-dev/hydpy)
- hydpy/core/testtools.py:3118:9 error[invalid-argument-type] Argument to bound method `update_devices` is incorrect: Expected `Element | Iterable[Element | str] | None`, found `tuple[Device, Device, Device, Device, Device, Device, Device, Device, Device, Device, Device]`
+ hydpy/core/testtools.py:3118:9 error[invalid-argument-type] Argument to bound method `HydPy.update_devices` is incorrect: Expected `Element | Iterable[Element | str] | None`, found `tuple[Device, Device, Device, Device, Device, Device, Device, Device, Device, Device, Device]`

ibis (https://github.com/ibis-project/ibis)
- ibis/backends/athena/__init__.py:536:47 error[invalid-argument-type] Argument to bound method `compile` is incorrect: Expected `Mapping[Expr, Any] | None`, found `Mapping[Scalar, Any] | None`
+ ibis/backends/athena/__init__.py:536:47 error[invalid-argument-type] Argument to bound method `SQLBackend.compile` is incorrect: Expected `Mapping[Expr, Any] | None`, found `Mapping[Scalar, Any] | None`
- ibis/backends/pyspark/__init__.py:1183:66 error[invalid-argument-type] Argument to bound method `compile` is incorrect: Expected `int | None`, found `str | None`
+ ibis/backends/pyspark/__init__.py:1183:66 error[invalid-argument-type] Argument to bound method `SQLBackend.compile` is incorrect: Expected `int | None`, found `str | None`
- ibis/backends/sql/tests/test_compiler.py:17:17 error[positional-only-parameter-as-kwarg] Positional-only parameter 2 (`fraction`) passed as keyword argument of bound method `sample`
+ ibis/backends/sql/tests/test_compiler.py:17:17 error[positional-only-parameter-as-kwarg] Positional-only parameter 2 (`fraction`) passed as keyword argument of bound method `Table.sample`
- ibis/expr/types/core.py:425:32 error[invalid-argument-type] Argument to bound method `execute` is incorrect: Expected `Mapping[Scalar, Any] | None`, found `Mapping[Value, Any] | None`
+ ibis/expr/types/core.py:425:32 error[invalid-argument-type] Argument to bound method `BaseBackend.execute` is incorrect: Expected `Mapping[Scalar, Any] | None`, found `Mapping[Value, Any] | None`
- ibis/expr/types/relations.py:1640:56 error[invalid-argument-type] Argument to bound method `aggregate` is incorrect: Expected `Sequence[BooleanValue] | None`, found `(t) -> Unknown`
+ ibis/expr/types/relations.py:1640:56 error[invalid-argument-type] Argument to bound method `Table.aggregate` is incorrect: Expected `Sequence[BooleanValue] | None`, found `(t) -> Unknown`
- ibis/tests/expr/test_window_frames.py:253:9 error[parameter-already-assigned] Multiple values provided for parameter `how` of bound method `__init__`
+ ibis/tests/expr/test_window_frames.py:253:9 error[parameter-already-assigned] Multiple values provided for parameter `how` of `WindowFunction.__init__`

ignite (https://github.com/pytorch/ignite)
- tests/ignite/handlers/test_checkpoint.py:568:17 error[invalid-argument-type] Argument to bound method `__call__` is incorrect: Expected `Mapping[Unknown, Unknown]`, found `list[Unknown]`
+ tests/ignite/handlers/test_checkpoint.py:568:17 error[invalid-argument-type] Argument to bound method `ModelCheckpoint.__call__` is incorrect: Expected `Mapping[Unknown, Unknown]`, found `list[Unknown]`
- tests/ignite/handlers/test_early_stopping.py:151:7 error[invalid-argument-type] Argument to bound method `__call__` is incorrect: Expected `Engine`, found `None`
+ tests/ignite/handlers/test_early_stopping.py:151:7 error[invalid-argument-type] Argument to bound method `EarlyStopping.__call__` is incorrect: Expected `Engine`, found `None`
- tests/ignite/handlers/test_state_param_scheduler.py:358:32 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `bool`, found `str | list[tuple[int, int]] | int | ... omitted 3 union elements`
+ tests/ignite/handlers/test_state_param_scheduler.py:358:32 error[invalid-argument-type] Argument to `LambdaStateScheduler.__init__` is incorrect: Expected `bool`, found `str | list[tuple[int, int]] | int | ... omitted 3 union elements`

jax (https://github.com/google/jax)
- jax/_src/core.py:655:35 error[invalid-argument-type] Argument to function `bind_with_trace` is incorrect: Expected `Primitive`, found `Trace | None`
+ jax/_src/core.py:655:35 error[invalid-argument-type] Argument to function `Primitive.bind_with_trace` is incorrect: Expected `Primitive`, found `Trace | None`
- jax/_src/pallas/fuser/block_spec.py:2576:33 error[invalid-argument-type] Argument to function `__new__` is incorrect: Expected `Iterable[Element | Squeezed | Blocked | ... omitted 3 union elements]`, found `Sequence[Element | Squeezed | Blocked | ... omitted 3 union elements] | None`
+ jax/_src/pallas/fuser/block_spec.py:2576:33 error[invalid-argument-type] Argument to constructor `enumerate.__new__` is incorrect: Expected `Iterable[Element | Squeezed | Blocked | ... omitted 3 union elements]`, found `Sequence[Element | Squeezed | Blocked | ... omitted 3 union elements] | None`

manticore (https://github.com/trailofbits/manticore)
- manticore/core/state_pb2.py:355:25 error[invalid-argument-type] Argument to bound method `RegisterMessage` is incorrect: Expected `type[Message] | Message`, found `GeneratedProtocolMessageType`
+ manticore/core/state_pb2.py:355:25 error[invalid-argument-type] Argument to bound method `SymbolDatabase.RegisterMessage` is incorrect: Expected `type[Message] | Message`, found `GeneratedProtocolMessageType`
- manticore/wasm/executor.py:267:43 error[too-many-positional-arguments] Too many positional arguments to bound method `i32_rotl`: expected 3, got 4
+ manticore/wasm/executor.py:267:43 error[too-many-positional-arguments] Too many positional arguments to bound method `Executor.i32_rotl`: expected 3, got 4
- server/manticore_server/ManticoreServer_pb2.py:42:25 error[invalid-argument-type] Argument to bound method `RegisterMessage` is incorrect: Expected `type[Message] | Message`, found `GeneratedProtocolMessageType`
+ server/manticore_server/ManticoreServer_pb2.py:42:25 error[invalid-argument-type] Argument to bound method `SymbolDatabase.RegisterMessage` is incorrect: Expected `type[Message] | Message`, found `GeneratedProtocolMessageType`

meson (https://github.com/mesonbuild/meson)
- mesonbuild/backend/ninjabackend.py:2132:65 error[invalid-argument-type] Argument to function `_get_rust_dependency_name` is incorrect: Expected `SharedLibrary | StaticLibrary | CustomTarget | CustomTargetIndex`, found `BuildTarget | CustomTarget | CustomTargetIndex`
+ mesonbuild/backend/ninjabackend.py:2132:65 error[invalid-argument-type] Argument to function `NinjaBackend._get_rust_dependency_name` is incorrect: Expected `SharedLibrary | StaticLibrary | CustomTarget | CustomTargetIndex`, found `BuildTarget | CustomTarget | CustomTargetIndex`
- mesonbuild/backend/ninjabackend.py:2512:75 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `RSPFileSyntax`, found `bool | RSPFileSyntax`
+ mesonbuild/backend/ninjabackend.py:2512:75 error[invalid-argument-type] Argument to `NinjaRule.__init__` is incorrect: Expected `RSPFileSyntax`, found `bool | RSPFileSyntax`
- mesonbuild/compilers/detect.py:1380:35 error[invalid-argument-type] Argument to bound method `add_lang_args` is incorrect: Expected `Literal["c", "cpp", "cuda", "fortran", "d", ... omitted 11 literals]`, found `str`
+ mesonbuild/compilers/detect.py:1380:35 error[invalid-argument-type] Argument to bound method `Environment.add_lang_args` is incorrect: Expected `Literal["c", "cpp", "cuda", "fortran", "d", ... omitted 11 literals]`, found `str`
- mesonbuild/dependencies/python.py:429:24 error[invalid-argument-type] Argument to function `__new__` is incorrect: Expected `str | PathLike[str]`, found `str | None`
+ mesonbuild/dependencies/python.py:429:24 error[invalid-argument-type] Argument to constructor `Path.__new__` is incorrect: Expected `str | PathLike[str]`, found `str | None`
- mesonbuild/linkers/detect.py:83:63 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `str | list[str]`, found `None | str | list[str]`
+ mesonbuild/linkers/detect.py:83:63 error[invalid-argument-type] Argument to `ClangClDynamicLinker.__init__` is incorrect: Expected `str | list[str]`, found `None | str | list[str]`
- unittests/datatests.py:248:30 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `Build`, found `FakeBuild`
+ unittests/datatests.py:248:30 error[invalid-argument-type] Argument to `Interpreter.__init__` is incorrect: Expected `Build`, found `FakeBuild`

mitmproxy (https://github.com/mitmproxy/mitmproxy)
- test/mitmproxy/proxy/layers/http/test_http.py:163:25 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `Connection`, found `Server | _Placeholder[Server]`
+ test/mitmproxy/proxy/layers/http/test_http.py:163:25 error[invalid-argument-type] Argument to `ConnectionCommand.__init__` is incorrect: Expected `Connection`, found `Server | _Placeholder[Server]`
- test/mitmproxy/proxy/layers/http/test_http2.py:808:21 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `Connection`, found `Server | _Placeholder[Server]`
+ test/mitmproxy/proxy/layers/http/test_http2.py:808:21 error[invalid-argument-type] Argument to `SendData.__init__` is incorrect: Expected `Connection`, found `Server | _Placeholder[Server]`
- test/mitmproxy/proxy/layers/http/test_http2.py:1286:29 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `bytes`, found `bytes | _Placeholder[bytes]`
+ test/mitmproxy/proxy/layers/http/test_http2.py:1286:29 error[invalid-argument-type] Argument to `SendData.__init__` is incorrect: Expected `bytes`, found `bytes | _Placeholder[bytes]`
- test/mitmproxy/proxy/layers/test_modes.py:98:27 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `Connection`, found `Server | _Placeholder[Server]`
+ test/mitmproxy/proxy/layers/test_modes.py:98:27 error[invalid-argument-type] Argument to `ConnectionCommand.__init__` is incorrect: Expected `Connection`, found `Server | _Placeholder[Server]`
- test/mitmproxy/proxy/layers/test_modes.py:102:31 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `bytes`, found `bytes | _Placeholder[bytes]`
+ test/mitmproxy/proxy/layers/test_modes.py:102:31 error[invalid-argument-type] Argument to `SendData.__init__` is incorrect: Expected `bytes`, found `bytes | _Placeholder[bytes]`
- test/mitmproxy/test_types.py:158:43 error[invalid-argument-type] Argument to bound method `parse` is incorrect: Expected `Choice`, found `<class 'Marker'>`
+ test/mitmproxy/test_types.py:158:43 error[invalid-argument-type] Argument to bound method `_MarkerType.parse` is incorrect: Expected `Choice`, found `<class 'Marker'>`

optuna (https://github.com/optuna/optuna)
- tests/gp_tests/test_acqf.py:72:23 error[invalid-argument-type] Argument to bound method `update` is incorrect: Expected `GPRegressor | SearchSpace`, found `float`
+ tests/gp_tests/test_acqf.py:72:23 error[invalid-argument-type] Argument to bound method `MutableMapping.update` is incorrect: Expected `GPRegressor | SearchSpace`, found `float`
- tests/samplers_tests/test_nsgaii.py:857:40 error[invalid-argument-type] Argument to bound method `to_internal_repr` is incorrect: Expected `None | int | float | str`, found `ndarray[Unknown, dtype[Any]]`
+ tests/samplers_tests/test_nsgaii.py:857:40 error[invalid-argument-type] Argument to bound method `CategoricalDistribution.to_internal_repr` is incorrect: Expected `None | int | float | str`, found `ndarray[Unknown, dtype[Any]]`

pandas (https://github.com/pandas-dev/pandas)
- pandas/core/indexes/multi.py:4727:49 error[invalid-argument-type] Argument to bound method `from_tuples` is incorrect: Expected `Iterable[tuple[Hashable, ...]]`, found `(Unknown & ~Generator[object, None, None] & ~MultiIndex) | (list[object] & ~MultiIndex)`
+ pandas/core/indexes/multi.py:4727:49 error[invalid-argument-type] Argument to bound method `MultiIndex.from_tuples` is incorrect: Expected `Iterable[tuple[Hashable, ...]]`, found `(Unknown & ~Generator[object, None, None] & ~MultiIndex) | (list[object] & ~MultiIndex)`
- pandas/io/pytables.py:2040:55 error[invalid-argument-type] Argument to bound method `_create_storer` is incorrect: Expected `str`, found `Unknown | None`
+ pandas/io/pytables.py:2040:55 error[invalid-argument-type] Argument to bound method `HDFStore._create_storer` is incorrect: Expected `str`, found `Unknown | None`
- pandas/io/pytables.py:3231:35 error[invalid-argument-type] Argument to bound method `write_array` is incorrect: Expected `ExtensionArray | ndarray[tuple[Any, ...], dtype[Any]] | Index | Series`, found `Unknown | None`
+ pandas/io/pytables.py:3231:35 error[invalid-argument-type] Argument to bound method `GenericFixed.write_array` is incorrect: Expected `ExtensionArray | ndarray[tuple[Any, ...], dtype[Any]] | Index | Series`, found `Unknown | None`
- pandas/tests/arrays/sparse/test_libsparse.py:392:40 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `ndarray[tuple[Any, ...], dtype[Any]]`, found `list[int]`
+ pandas/tests/arrays/sparse/test_libsparse.py:392:40 error[invalid-argument-type] Argument to `BlockIndex.__init__` is incorrect: Expected `ndarray[tuple[Any, ...], dtype[Any]]`, found `list[int]`
- pandas/tests/arrays/test_datetimes.py:655:30 error[invalid-argument-type] Argument to bound method `searchsorted` is incorrect: Expected `int | float | complex | ... omitted 7 union elements`, found `Period | Timestamp | Timedelta | NaTType`
+ pandas/tests/arrays/test_datetimes.py:655:30 error[invalid-argument-type] Argument to bound method `NDArrayBackedExtensionArray.searchsorted` is incorrect: Expected `int | float | complex | ... omitted 7 union elements`, found `Period | Timestamp | Timedelta | NaTType`
+ pandas/tests/frame/constructors/test_from_dict.py:82:13 error[no-matching-overload] No overload of `dict.__init__` matches arguments
- pandas/tests/frame/methods/test_dropna.py:274:33 error[invalid-argument-type] Argument to bound method `dropna` is incorrect: Expected `int | _NoDefault`, found `None`
+ pandas/tests/frame/methods/test_dropna.py:274:33 error[invalid-argument-type] Argument to bound method `DataFrame.dropna` is incorrect: Expected `int | _NoDefault`, found `None`
- pandas/tests/groupby/methods/test_quantile.py:102:51 error[invalid-argument-type] Argument to bound method `quantile` is incorrect: Expected `int | float | ExtensionArray | ... omitted 3 union elements`, found `list[int | float]`
+ pandas/tests/groupby/methods/test_quantile.py:102:51 error[invalid-argument-type] Argument to bound method `GroupBy.quantile` is incorrect: Expected `int | float | ExtensionArray | ... omitted 3 union elements`, found `list[int | float]`
- pandas/tests/io/json/test_pandas.py:543:44 error[invalid-argument-type] Argument to function `__new__` is incorrect: Expected `str | BaseOffset | _NoDefault`, found `None`
+ pandas/tests/io/json/test_pandas.py:543:44 error[invalid-argument-type] Argument to constructor `DatetimeIndex.__new__` is incorrect: Expected `str | BaseOffset | _NoDefault`, found `None`
- pandas/tests/io/parser/test_textreader.py:75:65 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `bytes | str | None`, found `set[Unknown]`
- pandas/tests/io/parser/test_textreader.py:75:65 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `int`, found `set[Unknown]`
- pandas/tests/io/parser/test_textreader.py:187:17 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `int`, found `set[Unknown]`
- pandas/tests/io/test_stata.py:1044:39 error[invalid-argument-type] Argument to bound method `to_stata` is incorrect: Expected `dict[Hashable, str] | None`, found `dict[str, str]`
+ pandas/tests/io/test_stata.py:1044:39 error[invalid-argument-type] Argument to bound method `DataFrame.to_stata` is incorrect: Expected `dict[Hashable, str] | None`, found `dict[str, str]`
- pandas/tests/series/methods/test_reindex.py:387:29 error[parameter-already-assigned] Multiple values provided for parameter `index` of bound method `reindex`
+ pandas/tests/series/methods/test_reindex.py:387:29 error[parameter-already-assigned] Multiple values provided for parameter `index` of bound method `Series.reindex`
- pandas/tests/tseries/offsets/test_business_day.py:128:37 error[invalid-argument-type] Argument to bound method `rollforward` is incorrect: Expected `datetime`, found `date`
+ pandas/tests/tseries/offsets/test_business_day.py:128:37 error[invalid-argument-type] Argument to bound method `BaseOffset.rollforward` is incorrect: Expected `datetime`, found `date`
- pandas/tests/tseries/offsets/test_offsets.py:682:32 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `bool`, found `int`
+ pandas/tests/tseries/offsets/test_offsets.py:682:32 error[invalid-argument-type] Argument to `RelativeDeltaOffset.__init__` is incorrect: Expected `bool`, found `int`
- pandas/tests/window/test_win_type.py:634:15 error[invalid-argument-type] Argument to bound method `mean` is incorrect: Expected `bool`, found `int | float`
+ pandas/tests/window/test_win_type.py:634:15 error[invalid-argument-type] Argument to bound method `Rolling.mean` is incorrect: Expected `bool`, found `int | float`

pandas-stubs (https://github.com/pandas-dev/pandas-stubs)
- tests/frame/test_frame.py:2642:14 error[no-matching-overload] No overload of bound method `rename` matches arguments
+ tests/frame/test_frame.py:2642:14 error[no-matching-overload] No overload of bound method `DataFrame.rename` matches arguments
- tests/series/complex/test_mul.py:115:21 error[no-matching-overload] No overload of bound method `rmul` matches arguments
+ tests/series/complex/test_mul.py:115:21 error[no-matching-overload] No overload of bound method `Series.rmul` matches arguments
- tests/series/str/test_mul.py:115:9 error[no-matching-overload] No overload of bound method `rmul` matches arguments
+ tests/series/str/test_mul.py:115:9 error[no-matching-overload] No overload of bound method `Series.rmul` matches arguments
- tests/series/timedelta/test_sub.py:162:9 error[no-matching-overload] No overload of bound method `sub` matches arguments
+ tests/series/timedelta/test_sub.py:162:9 error[no-matching-overload] No overload of bound method `Series.sub` matches arguments
- tests/series/timedelta/test_truediv.py:88:23 error[no-matching-overload] No overload of bound method `rtruediv` matches arguments
+ tests/series/timedelta/test_truediv.py:88:23 error[no-matching-overload] No overload of bound method `Series.rtruediv` matches arguments

pandera (https://github.com/pandera-dev/pandera)
- tests/pandas/test_logical_dtypes.py:269:9 error[invalid-argument-type] Argument to bound method `check` is incorrect: Expected `pandera.engines.pandas_engine.DataType`, found `pandera.dtypes.DataType`
+ tests/pandas/test_logical_dtypes.py:269:9 error[invalid-argument-type] Argument to bound method `Decimal.check` is incorrect: Expected `pandera.engines.pandas_engine.DataType`, found `pandera.dtypes.DataType`

parso (https://github.com/davidhalter/parso)
- parso/pgen2/generator.py:279:20 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `str`, found `None | str`
+ parso/pgen2/generator.py:279:20 error[invalid-argument-type] Argument to `Grammar.__init__` is incorrect: Expected `str`, found `None | str`

prefect (https://github.com/PrefectHQ/prefect)
- src/integrations/prefect-dbt/tests/core/test_orchestrator_cache.py:544:39 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `int | None`, found `object`
+ src/integrations/prefect-dbt/tests/core/test_orchestrator_cache.py:544:39 error[invalid-argument-type] Argument to `PrefectDbtOrchestrator.__init__` is incorrect: Expected `int | None`, found `object`
- src/prefect/task_engine.py:1762:47 error[invalid-argument-type] Argument to bound method `handle_success` is incorrect: Expected `R@run_generator_task_sync`, found `None`
+ src/prefect/task_engine.py:1762:47 error[invalid-argument-type] Argument to bound method `SyncTaskRunEngine.handle_success` is incorrect: Expected `R@run_generator_task_sync`, found `None`

pwndbg (https://github.com/pwndbg/pwndbg)
- pwndbg/aglib/disasm/disassembly.py:700:62 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `Literal["x86-64", "i386", "i8086", "mips", "aarch64", ... omitted 9 literals]`, found `None`
+ pwndbg/aglib/disasm/disassembly.py:700:62 error[invalid-argument-type] Argument to `DisassemblyAssistant.__init__` is incorrect: Expected `Literal["x86-64", "i386", "i8086", "mips", "aarch64", ... omitted 9 literals]`, found `None`
- pwndbg/aglib/kernel/nftables.py:124:16 error[invalid-argument-type] Argument to function `__new__` is incorrect: Expected `str | Buffer | SupportsInt | SupportsIndex | SupportsTrunc`, found `Value | None`
+ pwndbg/aglib/kernel/nftables.py:124:16 error[invalid-argument-type] Argument to constructor `int.__new__` is incorrect: Expected `str | Buffer | SupportsInt | SupportsIndex | SupportsTrunc`, found `Value | None`

pycryptodome (https://github.com/Legrandin/pycryptodome)
- lib/Crypto/SelfTest/Cipher/test_OCB.py:497:15 error[no-matching-overload] No overload of bound method `encrypt` matches arguments
+ lib/Crypto/SelfTest/Cipher/test_OCB.py:497:15 error[no-matching-overload] No overload of bound method `OcbMode.encrypt` matches arguments

pywin32 (https://github.com/mhammond/pywin32)
- win32/test/test_win32file.py:1010:28 error[invalid-argument-type] Argument to bound method `setblocking` is incorrect: Expected `bool`, found `Literal[0]`
+ win32/test/test_win32file.py:1010:28 error[invalid-argument-type] Argument to bound method `socket.setblocking` is incorrect: Expected `bool`, found `Literal[0]`

rich (https://github.com/Textualize/rich)
- tests/test_console.py:231:28 error[invalid-argument-type] Argument to bound method `print_json` is incorrect: Expected `str | None`, found `list[str]`
+ tests/test_console.py:231:28 error[invalid-argument-type] Argument to bound method `Console.print_json` is incorrect: Expected `str | None`, found `list[str]`

rotki (https://github.com/rotki/rotki)
- rotkehlchen/db/accounting_rules.py:581:9 error[invalid-argument-type] Argument to bound method `__call__` is incorrect: Expected `EvmEvent`, found `HistoryBaseEntry[Unknown]`
+ rotkehlchen/db/accounting_rules.py:581:9 error[invalid-argument-type] Argument to bound method `EventsAccountantCallback.__call__` is incorrect: Expected `EvmEvent`, found `HistoryBaseEntry[Unknown]`
- rotkehlchen/tasks/calendar.py:406:17 error[invalid-argument-type] Argument to bound method `create_or_update_calendar_entry_from_event` is incorrect: Expected `str`, found `str | None`
+ rotkehlchen/tasks/calendar.py:406:17 error[invalid-argument-type] Argument to bound method `CalendarReminderCreator.create_or_update_calendar_entry_from_event` is incorrect: Expected `str`, found `str | None`
- rotkehlchen/tests/db/test_history_events.py:103:17 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `str`, found `EVMTxHash`
+ rotkehlchen/tests/db/test_history_events.py:103:17 error[invalid-argument-type] Argument to `HistoryEvent.__init__` is incorrect: Expected `str`, found `EVMTxHash`
- rotkehlchen/tests/exchanges/test_binance.py:58:47 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `DBHandler`, found `object`
+ rotkehlchen/tests/exchanges/test_binance.py:58:47 error[invalid-argument-type] Argument to `Binance.__init__` is incorrect: Expected `DBHandler`, found `object`
- rotkehlchen/tests/exchanges/test_bitfinex.py:131:59 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `MessagesAggregator`, found `object`
+ rotkehlchen/tests/exchanges/test_bitfinex.py:131:59 error[invalid-argument-type] Argument to `Bitfinex.__init__` is incorrect: Expected `MessagesAggregator`, found `object`
- rotkehlchen/tests/unit/decoders/test_main.py:457:9 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `int`, found `float`
+ rotkehlchen/tests/unit/decoders/test_main.py:457:9 error[invalid-argument-type] Argument to `L2WithL1FeesTransaction.__init__` is incorrect: Expected `int`, found `float`
- rotkehlchen/tests/unit/decoders/test_paraswap.py:1227:9 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `ChecksumAddress | None`, found `Literal["0xDEF171Fe48CF0115B1d80b88dc8eAB59176FEe57"]`
+ rotkehlchen/tests/unit/decoders/test_paraswap.py:1227:9 error[invalid-argument-type] Argument to `EvmSwapEvent.__init__` is incorrect: Expected `ChecksumAddress | None`, found `Literal["0xDEF171Fe48CF0115B1d80b88dc8eAB59176FEe57"]`
- rotkehlchen/tests/unit/decoders/test_zerox.py:1309:9 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `ChecksumAddress | None`, found `Literal["0x000000000022D473030F116dDEE9F6B43aC78BA3"]`
+ rotkehlchen/tests/unit/decoders/test_zerox.py:1309:9 error[invalid-argument-type] Argument to `OnchainEvent.__init__` is incorrect: Expected `ChecksumAddress | None`, found `Literal["0x000000000022D473030F116dDEE9F6B43aC78BA3"]`
- rotkehlchen/tests/unit/test_eth2.py:519:9 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `int`, found `int | None`
+ rotkehlchen/tests/unit/test_eth2.py:519:9 error[invalid-argument-type] Argument to `EthWithdrawalEvent.__init__` is incorrect: Expected `int`, found `int | None`

schemathesis (https://github.com/schemathesis/schemathesis)
- src/schemathesis/config/_error.py:119:31 error[no-matching-overload] No overload of bound method `join` matches arguments
+ src/schemathesis/config/_error.py:119:31 error[no-matching-overload] No overload of bound method `str.join` matches arguments

scikit-learn (https://github.com/scikit-learn/scikit-learn)
- sklearn/decomposition/_dict_learning.py:140:23 error[invalid-argument-type] Argument to function `__new__` is incorrect: Expected `str | Buffer | SupportsFloat | SupportsIndex`, found `Unknown | None`
+ sklearn/decomposition/_dict_learning.py:140:23 error[invalid-argument-type] Argument to constructor `float.__new__` is incorrect: Expected `str | Buffer | SupportsFloat | SupportsIndex`, found `Unknown | None`
- sklearn/model_selection/tests/test_search.py:1388:18 error[no-matching-overload] No overload of bound method `repeat` matches arguments
+ sklearn/model_selection/tests/test_search.py:1388:18 error[no-matching-overload] No overload of bound method `ndarray.repeat` matches arguments
- sklearn/utils/validation.py:2521:13 error[invalid-argument-type] Argument to bound method `sort` is incorrect: Argument type `object` does not satisfy upper bound `SupportsDunderLT[Any] | SupportsDunderGT[Any]` of type variable `SupportsRichComparisonT`
+ sklearn/utils/validation.py:2521:13 error[invalid-argument-type] Argument to bound method `list.sort` is incorrect: Argument type `object` does not satisfy upper bound `SupportsDunderLT[Any] | SupportsDunderGT[Any]` of type variable `SupportsRichComparisonT`

scipy (https://github.com/scipy/scipy)
- benchmarks/benchmarks/sparse_linalg_lobpcg.py:163:42 error[unknown-argument] Argument `matvec` does not match any known parameter of bound method `__init__`
+ benchmarks/benchmarks/sparse_linalg_lobpcg.py:163:42 error[unknown-argument] Argument `matvec` does not match any known parameter of `LinearOperator.__init__`
- scipy/linalg/_decomp.py:478:44 error[no-matching-overload] No overload of bound method `join` matches arguments
+ scipy/linalg/_decomp.py:478:44 error[no-matching-overload] No overload of bound method `str.join` matches arguments
- scipy/optimize/_lsq/common.py:643:36 error[unknown-argument] Argument `matvec` does not match any known parameter of bound method `__init__`
+ scipy/optimize/_lsq/common.py:643:36 error[unknown-argument] Argument `matvec` does not match any known parameter of `LinearOperator.__init__`
- scipy/signal/tests/test_short_time_fft.py:439:37 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `Literal["twosided", "centered", "onesided", "onesided2X"]`, found `int | str | None`
+ scipy/signal/tests/test_short_time_fft.py:439:37 error[invalid-argument-type] Argument to `ShortTimeFFT.__init__` is incorrect: Expected `Literal["twosided", "centered", "onesided", "onesided2X"]`, found `int | str | None`
- scipy/sparse/linalg/_interface.py:1230:32 error[unknown-argument] Argument `rmatvec` does not match any known parameter of bound method `__init__`
+ scipy/sparse/linalg/_interface.py:1230:32 error[unknown-argument] Argument `rmatvec` does not match any known parameter of `LinearOperator.__init__`
- scipy/spatial/transform/tests/test_rotation.py:1453:16 error[invalid-argument-type] Argument to bound method `mean` is incorrect: Expected `None | int | tuple[int, ...]`, found `Literal["0"]`
+ scipy/spatial/transform/tests/test_rotation.py:1453:16 error[invalid-argument-type] Argument to bound method `Rotation.mean` is incorrect: Expected `None | int | tuple[int, ...]`, found `Literal["0"]`
- scipy/stats/tests/test_sampling.py:557:17 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `TDRDist`, found `StandardNormal`
+ scipy/stats/tests/test_sampling.py:557:17 error[invalid-argument-type] Argument to `TransformedDensityRejection.__init__` is incorrect: Expected `TDRDist`, found `StandardNormal`
- scipy/stats/tests/test_sampling.py:1140:37 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `int | float`, found `Literal["ekki"]`
+ scipy/stats/tests/test_sampling.py:1140:37 error[invalid-argument-type] Argument to `NumericalInverseHermite.__init__` is incorrect: Expected `int | float`, found `Literal["ekki"]`
- scipy/stats/tests/test_stats.py:1381:18 error[invalid-argument-type] Argument to bound method `append` is incorrect: Expected `int`, found `float`
+ scipy/stats/tests/test_stats.py:1381:18 error[invalid-argument-type] Argument to bound method `list.append` is incorrect: Expected `int`, found `float`

scrapy (https://github.com/scrapy/scrapy)
- tests/test_mail.py:160:43 error[invalid-argument-type] Argument to bound method `_create_sender_factory` is incorrect: Expected `IO[bytes]`, found `Literal["test"]`
+ tests/test_mail.py:160:43 error[invalid-argument-type] Argument to bound method `MailSender._create_sender_factory` is incorrect: Expected `IO[bytes]`, found `Literal["test"]`

setuptools (https://github.com/pypa/setuptools)
- setuptools/_distutils/command/sdist.py:388:39 error[invalid-argument-type] Argument to bound method `exclude_pattern` is incorrect: Expected `str`, found `None`
+ setuptools/_distutils/command/sdist.py:388:39 error[invalid-argument-type] Argument to bound method `FileList.exclude_pattern` is incorrect: Expected `str`, found `None`
- setuptools/_distutils/compilers/C/base.py:1041:35 error[invalid-argument-type] Argument to function `_make_relative` is incorrect: Expected `Path`, found `PurePath`
+ setuptools/_distutils/compilers/C/base.py:1041:35 error[invalid-argument-type] Argument to function `Compiler._make_relative` is incorrect: Expected `Path`, found `PurePath`

spack (https://github.com/spack/spack)
- lib/spack/spack/vendor/ruamel/yaml/main.py:702:21 error[too-many-positional-arguments] Too many positional arguments to bound method `__init__`: expected 1, got 2
+ lib/spack/spack/vendor/ruamel/yaml/main.py:702:21 error[too-many-positional-arguments] Too many positional arguments to `object.__init__`: expected 1, got 2
- lib/spack/spack/vendor/typing_extensions.py:2607:9 error[too-many-positional-arguments] Too many positional arguments to bound method `__init__`: expected 1, got 2
+ lib/spack/spack/vendor/typing_extensions.py:2607:9 error[too-many-positional-arguments] Too many positional arguments to `object.__init__`: expected 1, got 2

static-frame (https://github.com/static-frame/static-frame)
- static_frame/core/container_util.py:504:17 error[invalid-argument-type] Argument to function `to_index` is incorrect: Expected `type[IndexBase]`, found `((...) -> IndexBase) | type[Index[Any]] | None`
+ static_frame/core/container_util.py:504:17 error[invalid-argument-type] Argument to function `IndexAutoConstructorFactory.to_index` is incorrect: Expected `type[IndexBase]`, found `((...) -> IndexBase) | type[Index[Any]] | None`
- static_frame/core/display_visidata.py:319:56 error[too-many-positional-arguments] Too many positional arguments to bound method `from_concat`: expected 2, got 3
+ static_frame/core/display_visidata.py:319:56 error[too-many-positional-arguments] Too many positional arguments to bound method `Frame.from_concat`: expected 2, got 3
- static_frame/core/interface.py:1541:61 error[invalid-argument-type] Argument to bound method `gen_from_display` is incorrect: Expected `str`, found `str | type[ContainerBase] | Any | int`
+ static_frame/core/interface.py:1541:61 error[invalid-argument-type] Argument to bound method `InterfaceRecord.gen_from_display` is incorrect: Expected `type[ContainerBase]`, found `str | type[ContainerBase] | Any | int`
- static_frame/test/unit/test_index_hierarchy.py:1877:39 error[invalid-argument-type] Argument to bound method `from_tree` is incorrect: Expected `dict[Hashable, Divergent]`, found `OrderedDict[str, OrderedDict[str, tuple[int, int]]]`
+ static_frame/test/unit/test_index_hierarchy.py:1877:39 error[invalid-argument-type] Argument to bound method `IndexHierarchy.from_tree` is incorrect: Expected `dict[Hashable, Divergent]`, found `OrderedDict[str, OrderedDict[str, tuple[int, int]]]`
- static_frame/test/unit/test_store.py:162:17 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `bool`, found `int | ((x) -> Unknown)`
+ static_frame/test/unit/test_store.py:162:17 error[invalid-argument-type] Argument to `StoreConfig.__init__` is incorrect: Expected `int | None`, found `int | ((x) -> Unknown)`
- static_frame/test/unit/test_type_clinic.py:1978:49 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `Sequence[Hashable]`, found `EllipsisType`
+ static_frame/test/unit/test_type_clinic.py:1978:49 error[invalid-argument-type] Argument to `LabelsOrder.__init__` is incorrect: Expected `Sequence[Hashable]`, found `EllipsisType`
- static_frame/test/unit/test_type_clinic.py:2459:37 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `Sequence[Hashable]`, found `Pattern[str]`
+ static_frame/test/unit/test_type_clinic.py:2459:37 error[invalid-argument-type] Argument to `LabelsMatch.__init__` is incorrect: Expected `Sequence[Hashable]`, found `Pattern[str]`

sympy (https://github.com/sympy/sympy)
- sympy/core/tests/test_args.py:3072:33 error[invalid-argument-type] Argument to function `__new__` is incorrect: Expected `Boolean | bool`, found `Literal[1]`
+ sympy/core/tests/test_args.py:3072:33 error[invalid-argument-type] Argument to constructor `And.__new__` is incorrect: Expected `Boolean | bool`, found `Literal[1]`
- sympy/holonomic/holonomic.py:1043:59 error[invalid-argument-type] Argument to function `__new__` is incorrect: Expected `Iterable[Unknown]`, found `Unknown | None`
+ sympy/holonomic/holonomic.py:1043:59 error[invalid-argument-type] Argument to constructor `enumerate.__new__` is incorrect: Expected `Iterable[Unknown]`, found `Unknown | None`
- sympy/polys/polyoptions.py:476:61 error[invalid-argument-type] Argument to bound method `poly_ring` is incorrect: Expected `str | Expr`, found `Basic | int | float | complex | Any`
+ sympy/polys/polyoptions.py:476:61 error[invalid-argument-type] Argument to bound method `Domain.poly_ring` is incorrect: Expected `str | Expr`, found `Basic | int | float | complex | Any`
- sympy/polys/rootoftools.py:331:25 error[invalid-argument-type] Argument to function `__new__` is incorrect: Expected `str | Buffer | SupportsInt | SupportsIndex | SupportsTrunc`, found `(Unknown & ~None) | Basic`
+ sympy/polys/rootoftools.py:331:25 error[invalid-argument-type] Argument to constructor `int.__new__` is incorrect: Expected `str | Buffer | SupportsInt | SupportsIndex | SupportsTrunc`, found `(Unknown & ~None) | Basic`
- sympy/printing/mathml.py:1291:26 error[invalid-argument-type] Argument to bound method `appendChild` is incorrect: Argument type `str` does not satisfy upper bound `Element | ProcessingInstruction | Comment | Text | DocumentFragment` of type variable `_ElementChildrenPlusFragment`
+ sympy/printing/mathml.py:1291:26 error[invalid-argument-type] Argument to bound method `Element.appendChild` is incorrect: Argument type `str` does not satisfy upper bound `Element | ProcessingInstruction | Comment | Text | DocumentFragment` of type variable `_ElementChildrenPlusFragment`
- sympy/solvers/tests/test_pde.py:130:22 error[invalid-argument-type] Argument to function `__new__` is incorrect: Expected `(str, /) -> Unknown`, found `<class 'Function'>`
+ sympy/solvers/tests/test_pde.py:130:22 error[invalid-argument-type] Argument to constructor `map.__new__` is incorrect: Expected `(str, /) -> Unknown`, found `<class 'Function'>`
- sympy/testing/runtests.py:1191:36 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `list[expr]`, found `list[Name]`
+ sympy/testing/runtests.py:1191:36 error[invalid-argument-type] Argument to `Tuple.__init__` is incorrect: Expected `list[expr]`, found `list[Name]`

trio (https://github.com/python-trio/trio)
- src/trio/_tests/test_testing_raisesgroup.py:993:17 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `type[BaseException]`, found `<class 'object'>`
+ src/trio/_tests/test_testing_raisesgroup.py:993:17 error[invalid-argument-type] Argument to `Matcher.__init__` is incorrect: Expected `type[BaseException]`, found `<class 'object'>`

vision (https://github.com/pytorch/vision)
- test/test_transforms_v2.py:1746:45 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `InterpolationMode | int`, found `int | tuple[int | float, int | float] | tuple[int, int, int, int]`
+ test/test_transforms_v2.py:1746:45 error[invalid-argument-type] Argument to `RandomAffine.__init__` is incorrect: Expected `InterpolationMode | int`, found `int | tuple[int | float, int | float] | tuple[int, int, int, int]`
- test/test_transforms_v2.py:3734:45 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `int | Sequence[int] | None`, found `list[int | float]`
+ test/test_transforms_v2.py:3734:45 error[invalid-argument-type] Argument to `RandomCrop.__init__` is incorrect: Expected `int | Sequence[int] | None`, found `list[int | float]`

werkzeug (https://github.com/pallets/werkzeug)
- src/werkzeug/datastructures/headers.py:518:51 error[invalid-argument-type] Argument to bound method `getlist` is incorrect: Expected `str`, found `object`
+ src/werkzeug/datastructures/headers.py:518:51 error[invalid-argument-type] Argument to bound method `MultiDict.getlist` is incorrect: Expected `Never`, found `object`
- tests/middleware/test_shared_data.py:10:32 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `(dict[str, Any], StartResponse, /) -> Iterable[bytes]`, found `None`
+ tests/middleware/test_shared_data.py:10:32 error[invalid-argument-type] Argument to `SharedDataMiddleware.__init__` is incorrect: Expected `(dict[str, Any], StartResponse, /) -> Iterable[bytes]`, found `None`
- tests/test_datastructures.py:952:44 error[invalid-argument-type] Argument to bound method `best_match` is incorrect: Expected `str`, found `None`
+ tests/test_datastructures.py:952:44 error[invalid-argument-type] Argument to bound method `Accept.best_match` is incorrect: Expected `str`, found `None`
- tests/test_routing.py:584:13 error[invalid-argument-type] Argument to bound method `force_type` is incorrect: Expected `Response`, found `(dict[str, Any], StartResponse, /) -> Iterable[bytes]`
+ tests/test_routing.py:584:13 error[invalid-argument-type] Argument to bound method `Response.force_type` is incorrect: Expected `Response`, found `(dict[str, Any], StartResponse, /) -> Iterable[bytes]`

xarray (https://github.com/pydata/xarray)
- xarray/core/groupby.py:502:36 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Argument type `T_DataWithCoords@_resolve_group` does not satisfy constraints (`DataArray`, `Dataset`) of type variable `T_Xarray`
+ xarray/core/groupby.py:502:36 error[invalid-argument-type] Argument to `_DummyGroup.__init__` is incorrect: Argument type `T_DataWithCoords@_resolve_group` does not satisfy constraints (`DataArray`, `Dataset`) of type variable `T_Xarray`
- xarray/tests/test_backends.py:3863:38 error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `MutableMapping[str, bool | dict[str, dict[str, int]]]`, found `dict[str, dict[str, dict[str, int]]]`
+ xarray/tests/test_backends.py:3863:38 error[invalid-argument-type] Argument to `ChainMap.__init__` is incorrect: Expected `MutableMapping[str, bool | dict[str, dict[str, int]]]`, found `dict[str, dict[str, dict[str, int]]]`
- xarray/tests/test_dataarray.py:2379:49 error[invalid-argument-type] Argument to bound method `get_level_values` is incorrect: Expected `str | int`, found `Hashable`
+ xarray/tests/test_dataarray.py:2379:49 error[invalid-argument-type] Argument to bound method `MultiIndex.get_level_values` is incorrect: Expected `str | int`, found `Hashable`
- xarray/tests/test_plot.py:263:17 error[missing-argument] No argument provided for required parameter `self` of bound method `__call__`
+ xarray/tests/test_plot.py:263:17 error[missing-argument] No argument provided for required parameter `self` of bound method `_Wrapped.__call__`
- xarray/tests/test_plot.py:654:13 error[missing-argument] No argument provided for required parameter `self` of bound method `__call__`
+ xarray/tests/test_plot.py:654:13 error[missing-argument] No argument provided for required parameter `self` of bound method `_Wrapped.__call__`

yarl (https://github.com/aio-libs/yarl)
- tests/test_url.py:1816:13 error[invalid-argument-type] Argument to function `__new__` is incorrect: Expected `str | SplitResult | URL | UndefinedType`, found `Literal[1234]`
+ tests/test_url.py:1816:13 error[invalid-argument-type] Argument to constructor `URL.__new__` is incorrect: Expected `str | SplitResult | URL | UndefinedType`, found `Literal[1234]`

zulip (https://github.com/zulip/zulip)
- zerver/tests/test_decorators.py:1031:13 error[unknown-argument] Argument `post_data` does not match any known parameter of function `__new__`
+ zerver/tests/test_decorators.py:1031:13 error[unknown-argument] Argument `post_data` does not match any known parameter of constructor `HttpRequest.__new__`
- zerver/tests/test_import_export.py:3166:17 error[unknown-argument] Argument `sender` does not match any known parameter of bound method `__init__`
+ zerver/tests/test_import_export.py:3166:17 error[unknown-argument] Argument `sender` does not match any known parameter of `object.__init__`
- zerver/tests/test_typed_endpoint.py:618:17 error[unknown-argument] Argument `input_data` does not match any known parameter of bound method `__init__`
+ zerver/tests/test_typed_endpoint.py:618:17 error[unknown-argument] Argument `input_data` does not match any known parameter of `object.__init__`

Full report with detailed diff (timing results)

AlexWaygood · 2026-04-11T15:23:20Z

-# error: [too-many-positional-arguments] "Too many positional arguments to bound method `__init__`: expected 1, got 2"
+# error: [too-many-positional-arguments] "Too many positional arguments to `object.__init__`: expected 1, got 2"
 reveal_type(Foo(1))  # revealed: Foo


Describing __init__ as a "bound method" in this case is technically accurate, but not at all how most Python users would think about this constructor call, since a "bound method" implies (accurately) that the method is already bound to a constructed instance -- but from the user's perspective, the instance has yet to be created!

It's tempting to describe it as a "constructor" rather than a "bound method", but that's not technically accurate; the method is called on an instance after the instance has been constructed by __new__.

I wondered about describing it as an "initializer", but "Too many positional arguments to initializer object.__init__" feels very silly, given that the name __init__ already clearly signals that the method initializes the instance.

Ultimately, I decided to omit the description entirely for this common case: I think nearly all Python users will understand that an __init__ method is implicitly called when they construct an instance. I don't think any of the descriptions "bound method", "constructor" or "initializer" add any clarity; it's better to just keep the diagnostic more concise here.

AlexWaygood · 2026-04-11T15:25:17Z

I assume that ecosystem-analyzer is just struggling with the diff here because it's so huge. I don't think there's any way that this PR could really have resulted in 340 invalid-argument-type diagnostics being removed and 111 no-matching-overload diagnostics being added.

…ng bad calls to methods

sharkdp · 2026-04-13T09:25:47Z

I assume that ecosystem-analyzer is just struggling with the diff here because it's so huge. I don't think there's any way that this PR could really have resulted in 340 invalid-argument-type diagnostics being removed and 111 no-matching-overload diagnostics being added.

Certainly plausible, but it's a bit strange that there's nothing on the "removed" side, not even a close-by "changed" message:

AlexWaygood · 2026-04-13T11:45:34Z

Right, but I just don't see how this diff could possibly result in any diagnostics being added or going away...

charliermarsh

LGTM!

AlexWaygood added ty Multi-file analysis & type inference diagnostics Related to reporting of diagnostics. labels Apr 11, 2026

AlexWaygood commented Apr 11, 2026

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AlexWaygood marked this pull request as ready for review April 11, 2026 15:25

AlexWaygood requested review from carljm, dcreager, ibraheemdev and sharkdp as code owners April 11, 2026 15:25

astral-sh-bot bot assigned dcreager Apr 11, 2026

AlexWaygood mentioned this pull request Apr 11, 2026

[ty] Validate metaclass __new__/__prepare__/__init__, and meta-metaclass __call__, as well as __init_subclass__ #24550

Open

carljm removed their request for review April 11, 2026 22:07

AlexWaygood added 2 commits April 12, 2026 17:06

[ty] Use partially qualified names when reporting diagnostics regardi…

51b18f4

…ng bad calls to methods

describe __init__ and __new__ more naturally

e46f71b

AlexWaygood force-pushed the alex/qualified-methods branch from 77bdedd to e46f71b Compare April 12, 2026 16:23

Merge branch 'main' into alex/qualified-methods

2ff50eb

charliermarsh approved these changes Apr 16, 2026

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[ty] Use partially qualified names when reporting diagnostics regarding bad calls to methods#24560

[ty] Use partially qualified names when reporting diagnostics regarding bad calls to methods#24560
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