Change functools.Wrapped call signature from wrapper to wrapped

[hereisasound]

No description provided.

[AlexWaygood]

Hi, thanks for the PR! It looks like this would cause mypy to start emitting a bunch of new errors on several open-source projects -- mind explaining what problem you're trying to solve here? :)

[srittau]

Please note that there is quite a lengthy discussion around this behavior in #6670 when it was last changed.

[hereisasound]

Hello :)
For example here

importfunctoolsfromtypingimportreveal_typeclassFlamingo:
def__init__(self, name: str, age: int):
passclassFlock:
def__init__(self):
self.flamingos= []
@functools.wraps(Flamingo.__init__)defadd_flamingo(self, *args, **kwargs):
flamingo=Flamingo(*args, **kwargs)
self.flamingos.append(flamingo)
flock=Flock()
reveal_type(flock.add_flamingo)
flock.add_flamingo('Fiona', 3)
print(help(flock.add_flamingo))

Here is an output:

Help on method __init__ in module __main__:
__init__(name: str, age: int) method of __main__.Flock instance
Initialize self. See help(type(self)) for accurate signature.
None

Mypy says:

mypy fiona.py
fiona.py:19: note: Revealed type is "functools._Wrapped[[self: fiona.Flamingo, name: builtins.str, age: builtins.int], None, [self: fiona.Flock, *args: Any, **kwargs: Any], Any]"
fiona.py:20: error: Argument 1 to "__call__" of "_Wrapped" has incompatible type "str"; expected "Flock" [arg-type]
fiona.py:22: error: "help" does not return a value (it only ever returns None) [func-returns-value]
Found 2 errors in 1 file (checked 1 source file)

But yes, it seems really not very easy here with conflicts :(

[srittau]

The problem here is not the used type var, it's the fact that the whole signature is copied – including the first argument. Usually this makes sense, although not in the case of wrapping a method, as the example show. In this case, the first argument should be ignored.

So we would need an overload for cases where a method is passed to wraps, but I'm not sure the current type system can handle that.

[AlexWaygood]

Is this the same issue that has been reported in #10653?

[srittau]

Is this the same issue that has been reported in #10653?

Looks like it, although that issue is a bit convoluted.

[srittau]

See also python/typing#1410.

[hereisasound]

Hmm, maybe something like this:

def wraps(
wrapped: Callable[Concatenate[Self, _PWrapped], _RWrapped],
assigned: Sequence[str] = (
"__module__", "__name__", "__qualname__", "__doc__", "__annotations__", "__type_params__"),
updated: Sequence[str] = ("__dict__",),
) -> _MethodWrapper[_PWrapped, _RWrapped]: ...

[srittau]

I'm not sure that would work, but it's worth a try as an additional overload.

[github-actions]

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

pip (https://github.com/pypa/pip)
+ src/pip/_internal/index/collector.py:220: error: Incompatible return value type (got "_WrappedMethod[Never, Never, [IndexContent], list[Link]]", expected "ParseLinks") [return-value]+ src/pip/_internal/index/collector.py:220: note: Following member(s) of "_WrappedMethod[Never, Never, [IndexContent], list[Link]]" have conflicts:+ src/pip/_internal/index/collector.py:220: note: Expected:+ src/pip/_internal/index/collector.py:220: note: def __call__(self, page: IndexContent) -> Iterable[Link]+ src/pip/_internal/index/collector.py:220: note: Got:+ src/pip/_internal/index/collector.py:220: note: def __call__(self, *args: Never, **kwargs: Never) -> Never
pydantic (https://github.com/samuelcolvin/pydantic)
+ pydantic/v1/class_validators.py:275: error: Incompatible return value type (got "_WrappedMethod[Never, Never, [type[BaseModel] | type[Dataclass] | None, Any, dict[str, Any], ModelField, type[BaseConfig]], Any]", expected "Callable[[type[BaseModel] | type[Dataclass] | None, Any, dict[str, Any], ModelField, type[BaseConfig]], Any]") [return-value]+ pydantic/v1/class_validators.py:275: note: "_WrappedMethod[Never, Never, [type[BaseModel] | type[Dataclass] | None, Any, dict[str, Any], ModelField, type[BaseConfig]], Any].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ pydantic/v1/class_validators.py:278: error: Incompatible return value type (got "_WrappedMethod[Never, Never, [type[BaseModel] | type[Dataclass] | None, Any, dict[str, Any], ModelField, type[BaseConfig]], Any]", expected "Callable[[type[BaseModel] | type[Dataclass] | None, Any, dict[str, Any], ModelField, type[BaseConfig]], Any]") [return-value]+ pydantic/v1/class_validators.py:278: note: "_WrappedMethod[Never, Never, [type[BaseModel] | type[Dataclass] | None, Any, dict[str, Any], ModelField, type[BaseConfig]], Any].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ pydantic/v1/dataclasses.py:329: error: Argument 1 to "__call__" of "_WrappedMethod" has incompatible type "Dataclass"; expected Never [arg-type]+ pydantic/plugin/_schema_validator.py:124: error: Incompatible return value type (got "_WrappedMethod[Never, Never, P, R]", expected "Callable[P, R]") [return-value]+ pydantic/plugin/_schema_validator.py:124: note: "_WrappedMethod[Never, Never, P, R].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ pydantic/type_adapter.py:144: error: Incompatible return value type (got "_WrappedMethod[Never, Never, [TypeAdapterT, **P], R]", expected "Callable[[TypeAdapterT, **P], R]") [return-value]+ pydantic/type_adapter.py:144: note: "_WrappedMethod[Never, Never, [TypeAdapterT, **P], R].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"
Expression (https://github.com/cognitedata/Expression)
+ expression/core/fn.py:50: error: Incompatible return value type (got "_WrappedMethod[Never, Never, _P, _TResult]", expected "Callable[_P, _TResult]") [return-value]+ expression/core/fn.py:50: note: "_WrappedMethod[Never, Never, _P, _TResult].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ expression/core/fn.py:69: error: Incompatible return value type (got "_WrappedMethod[Never, Never, _P, Coroutine[Any, Any, _TResult]]", expected "Callable[_P, Awaitable[_TResult]]") [return-value]+ expression/core/fn.py:69: note: "_WrappedMethod[Never, Never, _P, Coroutine[Any, Any, _TResult]].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ expression/core/builder.py:131: error: Incompatible return value type (got "_WrappedMethod[Never, Never, _P, _TOuter]", expected "Callable[_P, _TOuter]") [return-value]+ expression/core/builder.py:131: note: "_WrappedMethod[Never, Never, _P, _TOuter].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"
pandas (https://github.com/pandas-dev/pandas)
+ pandas/core/computation/align.py:86: error: Incompatible return value type (got "_WrappedMethod[Never, Never, [Any], Any]", expected "Callable[[F], F]") [return-value]+ pandas/core/computation/align.py:86: note: "_WrappedMethod[Never, Never, [Any], Any].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"
pwndbg (https://github.com/pwndbg/pwndbg)
+ pwndbg/decorators.py: note: In function "only_after_first_prompt":+ pwndbg/decorators.py:32: error: Incompatible return value type (got "_WrappedMethod[Never, Never, P, T]", expected "Callable[P, T | None]") [return-value]+ pwndbg/decorators.py:32: note: "_WrappedMethod[Never, Never, P, T].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ pwndbg/lib/cache.py: note: In function "cache_until":+ pwndbg/lib/cache.py:166: error: Incompatible return value type (got "_WrappedMethod[Never, Never, P, T]", expected "Callable[P, T]") [return-value]+ pwndbg/lib/cache.py:166: note: "_WrappedMethod[Never, Never, P, T].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ pwndbg/gdblib/proc.py: note: In member "OnlyWhenRunning" of class "module":+ pwndbg/gdblib/proc.py:175: error: Incompatible return value type (got "_WrappedMethod[Never, Never, P, T]", expected "Callable[P, T | None]") [return-value]+ pwndbg/gdblib/proc.py:175: note: "_WrappedMethod[Never, Never, P, T].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ pwndbg/gdblib/proc.py: note: In member "OnlyWhenQemuKernel" of class "module":+ pwndbg/gdblib/proc.py:184: error: Incompatible return value type (got "_WrappedMethod[Never, Never, P, T]", expected "Callable[P, T | None]") [return-value]+ pwndbg/gdblib/proc.py:184: note: "_WrappedMethod[Never, Never, P, T].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ pwndbg/gdblib/proc.py: note: In function "OnlyWithArch":+ pwndbg/gdblib/proc.py:204: error: Incompatible return value type (got "_WrappedMethod[Never, Never, P, T]", expected "Callable[P, T | None]") [return-value]+ pwndbg/gdblib/proc.py:204: note: "_WrappedMethod[Never, Never, P, T].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ pwndbg/gdblib/abi.py: note: In function "LinuxOnly":+ pwndbg/gdblib/abi.py:69: error: Incompatible return value type (got "_WrappedMethod[Never, Never, P, T | D]", expected "Callable[P, T | D | None]") [return-value]+ pwndbg/gdblib/abi.py:69: note: "_WrappedMethod[Never, Never, P, T | D].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ pwndbg/ida.py: note: In function "withIDA":+ pwndbg/ida.py:143: error: Incompatible return value type (got "_WrappedMethod[Never, Never, P, T]", expected "Callable[P, T | None]") [return-value]+ pwndbg/ida.py:143: note: "_WrappedMethod[Never, Never, P, T].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ pwndbg/ida.py: note: In function "withHexrays":+ pwndbg/ida.py:154: error: Incompatible return value type (got "Callable[[VarArg(Never), KwArg(Never)], Never]", expected "Callable[P, T | None]") [return-value]+ pwndbg/ida.py: note: In function "takes_address":+ pwndbg/ida.py:162: error: Incompatible return value type (got "_WrappedMethod[Never, Never, [int, **P], T]", expected "Callable[[int, **P], T]") [return-value]+ pwndbg/ida.py:162: note: "_WrappedMethod[Never, Never, [int, **P], T].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ pwndbg/ida.py: note: In function "returns_address":+ pwndbg/ida.py:170: error: Incompatible return value type (got "_WrappedMethod[Never, Never, P, int]", expected "Callable[P, int]") [return-value]+ pwndbg/ida.py:170: note: "_WrappedMethod[Never, Never, P, int].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ pwndbg/gdblib/kernel/__init__.py: note: In function "requires_kconfig":+ pwndbg/gdblib/kernel/__init__.py:61: error: Incompatible return value type (got "_WrappedMethod[Never, Never, P, T | D]", expected "Callable[P, T | D]") [return-value]+ pwndbg/gdblib/kernel/__init__.py:61: note: "_WrappedMethod[Never, Never, P, T | D].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ pwndbg/gdblib/kernel/__init__.py: note: In function "requires_debug_syms":+ pwndbg/gdblib/kernel/__init__.py:80: error: Incompatible return value type (got "_WrappedMethod[Never, Never, P, T | D]", expected "Callable[P, T | D]") [return-value]+ pwndbg/gdblib/kernel/__init__.py:80: note: "_WrappedMethod[Never, Never, P, T | D].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ pwndbg/glibc.py: note: In function "OnlyWhenGlibcLoaded":+ pwndbg/glibc.py:175: error: Incompatible return value type (got "_WrappedMethod[Never, Never, P, T]", expected "Callable[P, T | None]") [return-value]+ pwndbg/glibc.py:175: note: "_WrappedMethod[Never, Never, P, T].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ pwndbg/commands/__init__.py: note: In function "OnlyWithFile":+ pwndbg/commands/__init__.py:274: error: Incompatible return value type (got "_WrappedMethod[Never, Never, P, T]", expected "Callable[P, T | None]") [return-value]+ pwndbg/commands/__init__.py:274: note: "_WrappedMethod[Never, Never, P, T].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ pwndbg/commands/__init__.py: note: In function "OnlyWhenQemuKernel":+ pwndbg/commands/__init__.py:288: error: Incompatible return value type (got "_WrappedMethod[Never, Never, P, T]", expected "Callable[P, T | None]") [return-value]+ pwndbg/commands/__init__.py:288: note: "_WrappedMethod[Never, Never, P, T].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ pwndbg/commands/__init__.py: note: In function "OnlyWhenUserspace":+ pwndbg/commands/__init__.py:302: error: Incompatible return value type (got "_WrappedMethod[Never, Never, P, T]", expected "Callable[P, T | None]") [return-value]+ pwndbg/commands/__init__.py:302: note: "_WrappedMethod[Never, Never, P, T].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ pwndbg/commands/__init__.py: note: In function "OnlyWithArch":+ pwndbg/commands/__init__.py:326: error: Incompatible return value type (got "_WrappedMethod[Never, Never, P, T]", expected "Callable[P, T | None]") [return-value]+ pwndbg/commands/__init__.py:326: note: "_WrappedMethod[Never, Never, P, T].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ pwndbg/commands/__init__.py: note: In function "OnlyWithKernelDebugSyms":+ pwndbg/commands/__init__.py:342: error: Incompatible return value type (got "_WrappedMethod[Never, Never, P, T]", expected "Callable[P, T | None]") [return-value]+ pwndbg/commands/__init__.py:342: note: "_WrappedMethod[Never, Never, P, T].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ pwndbg/commands/__init__.py: note: In function "OnlyWhenPagingEnabled":+ pwndbg/commands/__init__.py:354: error: Incompatible return value type (got "_WrappedMethod[Never, Never, P, T]", expected "Callable[P, T | None]") [return-value]+ pwndbg/commands/__init__.py:354: note: "_WrappedMethod[Never, Never, P, T].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ pwndbg/commands/__init__.py: note: In function "OnlyWhenRunning":+ pwndbg/commands/__init__.py:366: error: Incompatible return value type (got "_WrappedMethod[Never, Never, P, T]", expected "Callable[P, T | None]") [return-value]+ pwndbg/commands/__init__.py:366: note: "_WrappedMethod[Never, Never, P, T].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ pwndbg/commands/__init__.py: note: In function "OnlyWithTcache":+ pwndbg/commands/__init__.py:381: error: Incompatible return value type (got "_WrappedMethod[Never, Never, P, T]", expected "Callable[P, T | None]") [return-value]+ pwndbg/commands/__init__.py:381: note: "_WrappedMethod[Never, Never, P, T].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ pwndbg/commands/__init__.py: note: In function "OnlyWhenHeapIsInitialized":+ pwndbg/commands/__init__.py:393: error: Incompatible return value type (got "_WrappedMethod[Never, Never, P, T]", expected "Callable[P, T | None]") [return-value]+ pwndbg/commands/__init__.py:393: note: "_WrappedMethod[Never, Never, P, T].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ pwndbg/commands/__init__.py: note: In function "OnlyWithResolvedHeapSyms":+ pwndbg/commands/__init__.py:515: error: Incompatible return value type (got "_WrappedMethod[Never, Never, P, T]", expected "Callable[P, T | None]") [return-value]+ pwndbg/commands/__init__.py:515: note: "_WrappedMethod[Never, Never, P, T].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ pwndbg/wrappers/__init__.py: note: In member "__call__" of class "OnlyWithCommand":+ pwndbg/wrappers/__init__.py:39: error: Incompatible return value type (got "Callable[[VarArg(Never), KwArg(Never)], Never]", expected "Callable[P, T | None]") [return-value]+ pwndbg/commands/cymbol.py: note: In function "OnlyWhenStructFileExists":+ pwndbg/commands/cymbol.py:83: error: Incompatible return value type (got "_WrappedMethod[Never, Never, [str, str], Never]", expected "_OnlyWhenStructFileExists") [return-value]+ pwndbg/commands/cymbol.py:83: note: Following member(s) of "_WrappedMethod[Never, Never, [str, str], Never]" have conflicts:+ pwndbg/commands/cymbol.py:83: note: Expected:+ pwndbg/commands/cymbol.py:83: note: def [T] __call__(self, custom_structure_name: str, custom_structure_path: str = ...) -> T | None+ pwndbg/commands/cymbol.py:83: note: Got:+ pwndbg/commands/cymbol.py:83: note: def __call__(self, *args: Never, **kwargs: Never) -> Never
hydra-zen (https://github.com/mit-ll-responsible-ai/hydra-zen)
+ src/hydra_zen/wrapper/_implementations.py:522: error: Need type annotation for "target" [var-annotated]- src/hydra_zen/wrapper/_implementations.py:524: error: Incompatible types in assignment (expression has type "Zen[P, R]", variable has type "_Wrapped[P, R, [Any], Any]") [assignment]+ src/hydra_zen/wrapper/_implementations.py:524: error: Incompatible types in assignment (expression has type "Zen[P, R]", variable has type "_WrappedMethod[Any, Any, [Any], Any]") [assignment]
optuna (https://github.com/optuna/optuna)
+ optuna/_experimental.py:84: error: Incompatible return value type (got "_WrappedMethod[Never, Never, [VarArg(Any), KwArg(Any)], FT]", expected "Callable[FP, FT]") [return-value]+ optuna/_experimental.py:84: note: "_WrappedMethod[Never, Never, [VarArg(Any), KwArg(Any)], FT].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ optuna/_deprecated.py:115: error: Incompatible return value type (got "_WrappedMethod[Never, Never, [VarArg(Any), KwArg(Any)], FT]", expected "Callable[FP, FT]") [return-value]+ optuna/_deprecated.py:115: note: "_WrappedMethod[Never, Never, [VarArg(Any), KwArg(Any)], FT].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ optuna/_convert_positional_args.py:85: error: Incompatible return value type (got "_WrappedMethod[Never, Never, [VarArg(Any), KwArg(Any)], _T]", expected "Callable[_P, _T]") [return-value]+ optuna/_convert_positional_args.py:85: note: "_WrappedMethod[Never, Never, [VarArg(Any), KwArg(Any)], _T].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"
trio (https://github.com/python-trio/trio)
+ src/trio/_deprecate.py:120: error: Incompatible return value type (got "_WrappedMethod[Never, Never, ArgsT, RetT]", expected "Callable[ArgsT, RetT]") [return-value]+ src/trio/_deprecate.py:120: note: "_WrappedMethod[Never, Never, ArgsT, RetT].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ src/trio/_deprecate.py:140: error: Incompatible return value type (got "Callable[[VarArg(Never), KwArg(Never)], Never]", expected "Callable[ArgsT, RetT]") [return-value]+ src/trio/_core/_ki.py:143: error: Unused "type: ignore" comment [unused-ignore]+ src/trio/_core/_ki.py:149: error: Incompatible return value type (got "_WrappedMethod[Never, Never, ArgsT, RetT]", expected "Callable[ArgsT, RetT]") [return-value]+ src/trio/_core/_ki.py:149: note: "_WrappedMethod[Never, Never, ArgsT, RetT].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ src/trio/_core/_ki.py:153: error: Unused "type: ignore" comment [unused-ignore]+ src/trio/_core/_ki.py:166: error: Incompatible return value type (got "_WrappedMethod[Never, Never, ArgsT, RetT]", expected "Callable[ArgsT, RetT]") [return-value]+ src/trio/_core/_ki.py:166: note: "_WrappedMethod[Never, Never, ArgsT, RetT].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ src/trio/_core/_ki.py:169: error: Unused "type: ignore" comment [unused-ignore]+ src/trio/_core/_ki.py:170: error: Unused "type: ignore" comment [unused-ignore]+ src/trio/_core/_ki.py:176: error: Incompatible return value type (got "_WrappedMethod[Never, Never, ArgsT, RetT]", expected "Callable[ArgsT, RetT]") [return-value]+ src/trio/_core/_ki.py:176: note: "_WrappedMethod[Never, Never, ArgsT, RetT].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ src/trio/_core/_ki.py:184: error: Incompatible return value type (got "_WrappedMethod[Never, Never, ArgsT, RetT]", expected "Callable[ArgsT, RetT]") [return-value]+ src/trio/_core/_ki.py:184: note: "_WrappedMethod[Never, Never, ArgsT, RetT].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ src/trio/testing/_trio_test.py:48: error: Incompatible return value type (got "_WrappedMethod[Never, Never, ArgsT, RetT]", expected "Callable[ArgsT, RetT]") [return-value]+ src/trio/testing/_trio_test.py:48: note: "_WrappedMethod[Never, Never, ArgsT, RetT].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"
antidote (https://github.com/Finistere/antidote)
+ tests/core/test_thread_safety.py:71: error: Incompatible return value type (got "_WrappedMethod[Never, Never, P, T]", expected "Callable[P, T]") [return-value]+ tests/core/test_thread_safety.py:71: note: "_WrappedMethod[Never, Never, P, T].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"
tornado (https://github.com/tornadoweb/tornado)
- tornado/gen.py:261: error: Unused "type: ignore" comment [unused-ignore]+ tornado/testing.py:596: error: Need type annotation for "coro" [var-annotated]
werkzeug (https://github.com/pallets/werkzeug)
+ src/werkzeug/wsgi.py:28: error: Incompatible return value type (got "_Wrapped[[VarArg(Any), KwArg(Any)], Callable[[dict[str, Any], StartResponse], Iterable[bytes]], [VarArg(Any)], Iterable[bytes]]", expected "Callable[[dict[str, Any], StartResponse], Iterable[bytes]]") [return-value]+ src/werkzeug/wsgi.py:28: note: "_Wrapped[[VarArg(Any), KwArg(Any)], Callable[[dict[str, Any], StartResponse], Iterable[bytes]], [VarArg(Any)], Iterable[bytes]].__call__" has type "Callable[[VarArg(Any)], Callable[[dict[str, Any], StartResponse], Iterable[bytes]]]"
starlette (https://github.com/encode/starlette)
+ starlette/authentication.py:66: error: Incompatible return value type (got "_WrappedMethod[Never, Never, _P, Coroutine[Any, Any, None]]", expected "Callable[_P, Any]") [return-value]+ starlette/authentication.py:66: note: "_WrappedMethod[Never, Never, _P, Coroutine[Any, Any, None]].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ starlette/authentication.py:83: error: Incompatible return value type (got "_WrappedMethod[Never, Never, _P, Coroutine[Any, Any, Any]]", expected "Callable[_P, Any]") [return-value]+ starlette/authentication.py:83: note: "_WrappedMethod[Never, Never, _P, Coroutine[Any, Any, Any]].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ starlette/authentication.py:100: error: Incompatible return value type (got "_WrappedMethod[Never, Never, _P, Any]", expected "Callable[_P, Any]") [return-value]+ starlette/authentication.py:100: note: "_WrappedMethod[Never, Never, _P, Any].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"
Tanjun (https://github.com/FasterSpeeding/Tanjun)
+ tanjun/_internal/__init__.py:283: error: Incompatible return value type (got "_WrappedMethod[Never, Never, _P, Coroutine[Any, Any, _T]]", expected "Callable[_P, Coroutine[Any, Any, _T]]") [return-value]+ tanjun/_internal/__init__.py:283: note: "_WrappedMethod[Never, Never, _P, Coroutine[Any, Any, _T]].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"
mkosi (https://github.com/systemd/mkosi)
+ mkosi/util.py:37:12: error: Incompatible return value type (got "_Wrapped[[VarArg(Any), KwArg(Any)], Iterator[tuple[T, V]], [VarArg(Any), KwArg(Any)], dict[T, V]]", expected "Callable[..., dict[T, V]]") [return-value]+ mkosi/util.py:37:12: note: "_Wrapped[[VarArg(Any), KwArg(Any)], Iterator[tuple[T, V]], [VarArg(Any), KwArg(Any)], dict[T, V]].__call__" has type "Callable[[VarArg(Any), KwArg(Any)], Iterator[tuple[T, V]]]"+ mkosi/util.py:44:12: error: Incompatible return value type (got "_Wrapped[[VarArg(Any), KwArg(Any)], Iterable[T], [VarArg(Any), KwArg(Any)], list[T]]", expected "Callable[..., list[T]]") [return-value]+ mkosi/util.py:44:12: note: "_Wrapped[[VarArg(Any), KwArg(Any)], Iterable[T], [VarArg(Any), KwArg(Any)], list[T]].__call__" has type "Callable[[VarArg(Any), KwArg(Any)], Iterable[T]]"+ mkosi/util.py:51:12: error: Incompatible return value type (got "_Wrapped[[VarArg(Any), KwArg(Any)], Iterable[T], [VarArg(Any), KwArg(Any)], tuple[T, ...]]", expected "Callable[..., tuple[T, ...]]") [return-value]+ mkosi/util.py:51:12: note: "_Wrapped[[VarArg(Any), KwArg(Any)], Iterable[T], [VarArg(Any), KwArg(Any)], tuple[T, ...]].__call__" has type "Callable[[VarArg(Any), KwArg(Any)], Iterable[T]]"
scrapy (https://github.com/scrapy/scrapy)
+ scrapy/utils/decorators.py:38: error: Incompatible return value type (got "_WrappedMethod[Never, Never, _P, Any]", expected "Callable[_P, _T]") [return-value]+ scrapy/utils/decorators.py:38: note: "_WrappedMethod[Never, Never, _P, Any].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ scrapy/utils/decorators.py:53: error: Incompatible return value type (got "_WrappedMethod[Never, Never, _P, Any]", expected "Callable[_P, Any]") [return-value]+ scrapy/utils/decorators.py:53: note: "_WrappedMethod[Never, Never, _P, Any].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ scrapy/utils/decorators.py:65: error: Incompatible return value type (got "_WrappedMethod[Never, Never, _P, Any]", expected "Callable[_P, Any]") [return-value]+ scrapy/utils/decorators.py:65: note: "_WrappedMethod[Never, Never, _P, Any].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ scrapy/utils/python.py:201: error: Incompatible return value type (got "_WrappedMethod[Never, Never, [_SelfT, **_P], _T]", expected "Callable[[_SelfT, **_P], _T]") [return-value]+ scrapy/utils/python.py:201: note: "_WrappedMethod[Never, Never, [_SelfT, **_P], _T].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ scrapy/utils/defer.py:401: error: Incompatible return value type (got "_WrappedMethod[Never, Never, _P, Any]", expected "Callable[_P, Any]") [return-value]+ scrapy/utils/defer.py:401: note: "_WrappedMethod[Never, Never, _P, Any].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"
black (https://github.com/psf/black)
+ src/black/linegen.py:1161:12: error: Incompatible return value type (got "_WrappedMethod[Never, Never, [Line, Collection[Feature], Mode], Iterator[Line]]", expected "Callable[[Line, Collection[Feature], Mode], Iterator[Line]]") [return-value]+ src/black/linegen.py:1161:12: note: "_WrappedMethod[Never, Never, [Line, Collection[Feature], Mode], Iterator[Line]].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"
ibis (https://github.com/ibis-project/ibis)
- ibis/expr/types/relations.py:3247: error: Missing positional argument "predicates" in call to "__call__" of "_Wrapped" [call-arg]+ ibis/expr/types/relations.py:3248: error: Argument 2 to "__call__" of "_WrappedMethod" has incompatible type "str | Sequence[Literal[True, False] | str | BooleanColumn | tuple[str | Column | Deferred, str | Column | Deferred]]"; expected Never [arg-type]+ ibis/expr/types/relations.py:3248: error: Argument "how" to "__call__" of "_WrappedMethod" has incompatible type "Literal['inner', 'left', 'right', 'outer', 'asof', 'semi', 'anti', 'any_inner', 'any_left', 'cross']"; expected Never [arg-type]+ ibis/expr/types/relations.py:3248: error: Argument "lname" to "__call__" of "_WrappedMethod" has incompatible type "str"; expected Never [arg-type]+ ibis/expr/types/relations.py:3248: error: Argument "rname" to "__call__" of "_WrappedMethod" has incompatible type "str"; expected Never [arg-type]+ ibis/expr/types/relations.py:3293: error: Argument 2 to "__call__" of "_WrappedMethod" has incompatible type "str | BooleanColumn"; expected Never [arg-type]+ ibis/expr/types/relations.py:3293: error: Argument 3 to "__call__" of "_WrappedMethod" has incompatible type "str | Column | Sequence[str | Column]"; expected Never [arg-type]+ ibis/expr/types/relations.py:3293: error: Argument "tolerance" to "__call__" of "_WrappedMethod" has incompatible type "str | IntervalScalar | None"; expected Never [arg-type]+ ibis/expr/types/relations.py:3293: error: Argument "lname" to "__call__" of "_WrappedMethod" has incompatible type "str"; expected Never [arg-type]+ ibis/expr/types/relations.py:3293: error: Argument "rname" to "__call__" of "_WrappedMethod" has incompatible type "str"; expected Never [arg-type]+ ibis/expr/types/relations.py:3376: error: Argument "lname" to "__call__" of "_WrappedMethod" has incompatible type "str"; expected Never [arg-type]+ ibis/expr/types/relations.py:3376: error: Argument "rname" to "__call__" of "_WrappedMethod" has incompatible type "str"; expected Never [arg-type]
jax (https://github.com/google/jax)
+ jax/_src/ad_checkpoint.py:767: error: Argument 2 to "__call__" of "_WrappedMethod" has incompatible type "Callable[[VarArg(Any)], Any]"; expected Never [arg-type]+ jax/_src/ad_checkpoint.py:767: error: Argument 3 to "__call__" of "_WrappedMethod" has incompatible type "Callable[[VarArg(Any)], Any]"; expected Never [arg-type]+ jax/_src/scipy/linalg.py:1189: error: Need type annotation for "R" [var-annotated]+ jax/_src/scipy/linalg.py:1189: error: Argument 2 to "__call__" of "_WrappedMethod" has incompatible type "Callable[[Any], Any]"; expected Never [arg-type]+ jax/_src/scipy/linalg.py:1189: error: Argument 3 to "__call__" of "_WrappedMethod" has incompatible type "Callable[[Any], Any]"; expected Never [arg-type]+ jax/_src/scipy/linalg.py:1189: error: Argument 4 to "__call__" of "_WrappedMethod" has incompatible type "tuple[Array, Any, Any]"; expected Never [arg-type]+ jax/_src/scipy/special.py:2570: error: Need type annotation for "result" [var-annotated]+ jax/_src/scipy/special.py:2570: error: Argument 1 to "__call__" of "_WrappedMethod" has incompatible type "Array"; expected Never [arg-type]+ jax/_src/scipy/special.py:2570: error: Argument 2 to "__call__" of "_WrappedMethod" has incompatible type "Callable[[Any, Any, Any], Any]"; expected Never [arg-type]+ jax/_src/scipy/special.py:2570: error: Argument 3 to "__call__" of "_WrappedMethod" has incompatible type "Callable[[Any, Any, Any], Any]"; expected Never [arg-type]+ jax/_src/scipy/special.py:2570: error: Argument 4 to "__call__" of "_WrappedMethod" has incompatible type "Array"; expected Never [arg-type]+ jax/_src/scipy/special.py:2570: error: Argument 5 to "__call__" of "_WrappedMethod" has incompatible type "Array"; expected Never [arg-type]+ jax/_src/scipy/special.py:2570: error: Argument 6 to "__call__" of "_WrappedMethod" has incompatible type "Array"; expected Never [arg-type]+ jax/experimental/sparse/coo.py:129: error: Argument 1 to "__call__" of "_WrappedMethod" has incompatible type "bool"; expected Never [arg-type]+ jax/experimental/sparse/coo.py:129: error: Argument 2 to "__call__" of "_WrappedMethod" has incompatible type "Callable[[], Any]"; expected Never [arg-type]+ jax/experimental/sparse/coo.py:129: error: Argument 3 to "__call__" of "_WrappedMethod" has incompatible type "Callable[[], int]"; expected Never [arg-type]+ jax/experimental/sparse/coo.py:130: error: Argument 1 to "__call__" of "_WrappedMethod" has incompatible type "bool"; expected Never [arg-type]+ jax/experimental/sparse/coo.py:130: error: Argument 2 to "__call__" of "_WrappedMethod" has incompatible type "Callable[[], Any]"; expected Never [arg-type]+ jax/experimental/sparse/coo.py:130: error: Argument 3 to "__call__" of "_WrappedMethod" has incompatible type "Callable[[], int]"; expected Never [arg-type]+ jax/experimental/sparse/bcoo.py:2575: error: Argument 1 to "__call__" of "_WrappedMethod" has incompatible type "bool"; expected Never [arg-type]+ jax/experimental/sparse/bcoo.py:2575: error: Argument 2 to "__call__" of "_WrappedMethod" has incompatible type "Callable[[], Any]"; expected Never [arg-type]+ jax/experimental/sparse/bcoo.py:2575: error: Argument 3 to "__call__" of "_WrappedMethod" has incompatible type "Callable[[], int]"; expected Never [arg-type]+ jax/experimental/sparse/bcoo.py:2576: error: Argument 1 to "__call__" of "_WrappedMethod" has incompatible type "bool"; expected Never [arg-type]+ jax/experimental/sparse/bcoo.py:2576: error: Argument 2 to "__call__" of "_WrappedMethod" has incompatible type "Callable[[], Any]"; expected Never [arg-type]+ jax/experimental/sparse/bcoo.py:2576: error: Argument 3 to "__call__" of "_WrappedMethod" has incompatible type "Callable[[], int]"; expected Never [arg-type]
discord.py (https://github.com/Rapptz/discord.py)
+ discord/utils.py:309: error: Incompatible return value type (got "_WrappedMethod[Never, Never, P, T]", expected "Callable[P, T]") [return-value]+ discord/utils.py:309: note: "_WrappedMethod[Never, Never, P, T].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ discord/ext/commands/core.py:226: error: Incompatible return value type (got "_WrappedMethod[Never, Never, P, Coroutine[Any, Any, T | None]]", expected "Callable[P, Coroutine[Any, Any, T | None]]") [return-value]+ discord/ext/commands/core.py:226: note: "_WrappedMethod[Never, Never, P, Coroutine[Any, Any, T | None]].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ discord/ext/commands/core.py:252: error: Incompatible return value type (got "_WrappedMethod[Never, Never, P, Coroutine[Any, Any, T | None]]", expected "Callable[P, Coroutine[Any, Any, T | None]]") [return-value]+ discord/ext/commands/core.py:252: note: "_WrappedMethod[Never, Never, P, Coroutine[Any, Any, T | None]].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"
schemathesis (https://github.com/schemathesis/schemathesis)
+ src/schemathesis/specs/openapi/negative/mutations.py: note: In function "for_types":+ src/schemathesis/specs/openapi/negative/mutations.py:158: error: Incompatible return value type (got "_WrappedMethod[Never, Never, [MutationContext, Callable[[Any], Any], Dict[str, Any]], MutationResult]", expected "Callable[[MutationContext, Callable[[Any], Any], Dict[str, Any]], MutationResult]") [return-value]+ src/schemathesis/specs/openapi/negative/mutations.py:158: note: "_WrappedMethod[Never, Never, [MutationContext, Callable[[Any], Any], Dict[str, Any]], MutationResult].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"+ src/schemathesis/specs/openapi/negative/mutations.py: note: At top level:
bokeh (https://github.com/bokeh/bokeh)
+ release/credentials.py: note: In function "collect_credential":+ release/credentials.py:61:16: error: Incompatible return value type (got "_WrappedMethod[Never, Never, [Config, System], ActionReturn]", expected "Callable[[Config, System], ActionReturn]") [return-value]+ release/credentials.py:61:16: note: "_WrappedMethod[Never, Never, [Config, System], ActionReturn].__call__" has type "Callable[[VarArg(Never), KwArg(Never)], Never]"
streamlit (https://github.com/streamlit/streamlit)
+ lib/streamlit/runtime/fragment.py: note: In function "_fragment":+ lib/streamlit/runtime/fragment.py:212:12: error: Incompatible return value type (got "_WrappedMethod[Never, Never, [VarArg(Any), KwArg(Any)], Any]", expected "Union[Callable[[F], F], F]") [return-value]

[srittau]

Unfortunately, I don't think this going to work like this. We need a solution like discussed here or in #10653 to be able to overload the function, depending on whether a function or method is passed.

[srittau]

I've marked this inexpressible and I'm closing it per my previous comment. Thanks for the effort! I hope we'll have a working solution for this at some point.