diff --git a/mypy/typeshed/stdlib/_asyncio.pyi b/mypy/typeshed/stdlib/_asyncio.pyi
index 18920cd8a8a4..a259026615aa 100644
--- a/mypy/typeshed/stdlib/_asyncio.pyi
+++ b/mypy/typeshed/stdlib/_asyncio.pyi
@@ -1,6 +1,6 @@
 import sys
 from asyncio.events import AbstractEventLoop
-from collections.abc import Awaitable, Callable, Coroutine, Generator, Iterable
+from collections.abc import Awaitable, Callable, Coroutine, Generator
 from contextvars import Context
 from types import FrameType
 from typing import Any, Literal, TextIO, TypeVar
@@ -13,7 +13,7 @@ _T = TypeVar("_T")
 _T_co = TypeVar("_T_co", covariant=True)
 _TaskYieldType: TypeAlias = Future[object] | None
 
-class Future(Awaitable[_T], Iterable[_T]):
+class Future(Awaitable[_T]):
     _state: str
     @property
     def _exception(self) -> BaseException | None: ...
diff --git a/mypy/typeshed/stdlib/_csv.pyi b/mypy/typeshed/stdlib/_csv.pyi
index 6d1893cf8c16..0e206a63b260 100644
--- a/mypy/typeshed/stdlib/_csv.pyi
+++ b/mypy/typeshed/stdlib/_csv.pyi
@@ -1,3 +1,4 @@
+import csv
 import sys
 from _typeshed import SupportsWrite
 from collections.abc import Iterable, Iterator
@@ -20,7 +21,7 @@ _QuotingType: TypeAlias = int
 
 class Error(Exception): ...
 
-_DialectLike: TypeAlias = str | Dialect | type[Dialect]
+_DialectLike: TypeAlias = str | Dialect | csv.Dialect | type[Dialect | csv.Dialect]
 
 class Dialect:
     delimiter: str
diff --git a/mypy/typeshed/stdlib/builtins.pyi b/mypy/typeshed/stdlib/builtins.pyi
index adfe1d83752b..eaa6695f7045 100644
--- a/mypy/typeshed/stdlib/builtins.pyi
+++ b/mypy/typeshed/stdlib/builtins.pyi
@@ -850,7 +850,10 @@ class slice:
     @overload
     def __new__(cls, start: Any, stop: Any, step: Any = ..., /) -> Self: ...
     def __eq__(self, value: object, /) -> bool: ...
-    __hash__: ClassVar[None]  # type: ignore[assignment]
+    if sys.version_info >= (3, 12):
+        def __hash__(self) -> int: ...
+    else:
+        __hash__: ClassVar[None]  # type: ignore[assignment]
     def indices(self, len: SupportsIndex, /) -> tuple[int, int, int]: ...
 
 class tuple(Sequence[_T_co]):
diff --git a/mypy/typeshed/stdlib/csv.pyi b/mypy/typeshed/stdlib/csv.pyi
index 89a019753f04..c5c7fea8fa25 100644
--- a/mypy/typeshed/stdlib/csv.pyi
+++ b/mypy/typeshed/stdlib/csv.pyi
@@ -4,7 +4,6 @@ from _csv import (
     QUOTE_MINIMAL as QUOTE_MINIMAL,
     QUOTE_NONE as QUOTE_NONE,
     QUOTE_NONNUMERIC as QUOTE_NONNUMERIC,
-    Dialect as _Dialect,
     Error as Error,
     __version__ as __version__,
     _DialectLike,
@@ -59,7 +58,15 @@ if sys.version_info < (3, 13):
 
 _T = TypeVar("_T")
 
-class Dialect(_Dialect):
+class Dialect:
+    delimiter: str
+    quotechar: str | None
+    escapechar: str | None
+    doublequote: bool
+    skipinitialspace: bool
+    lineterminator: str
+    quoting: _QuotingType
+    strict: bool
     def __init__(self) -> None: ...
 
 class excel(Dialect): ...
diff --git a/mypy/typeshed/stdlib/posixpath.pyi b/mypy/typeshed/stdlib/posixpath.pyi
index 31406f8df950..3313667f1781 100644
--- a/mypy/typeshed/stdlib/posixpath.pyi
+++ b/mypy/typeshed/stdlib/posixpath.pyi
@@ -77,7 +77,11 @@ pathsep: LiteralString
 defpath: LiteralString
 devnull: LiteralString
 
-def abspath(path: PathLike[AnyStr] | AnyStr) -> AnyStr: ...
+# Overloads are necessary to work around python/mypy#17952 & python/mypy#11880
+@overload
+def abspath(path: PathLike[AnyStr]) -> AnyStr: ...
+@overload
+def abspath(path: AnyStr) -> AnyStr: ...
 @overload
 def basename(p: PathLike[AnyStr]) -> AnyStr: ...
 @overload
@@ -86,8 +90,14 @@ def basename(p: AnyOrLiteralStr) -> AnyOrLiteralStr: ...
 def dirname(p: PathLike[AnyStr]) -> AnyStr: ...
 @overload
 def dirname(p: AnyOrLiteralStr) -> AnyOrLiteralStr: ...
-def expanduser(path: PathLike[AnyStr] | AnyStr) -> AnyStr: ...
-def expandvars(path: PathLike[AnyStr] | AnyStr) -> AnyStr: ...
+@overload
+def expanduser(path: PathLike[AnyStr]) -> AnyStr: ...
+@overload
+def expanduser(path: AnyStr) -> AnyStr: ...
+@overload
+def expandvars(path: PathLike[AnyStr]) -> AnyStr: ...
+@overload
+def expandvars(path: AnyStr) -> AnyStr: ...
 @overload
 def normcase(s: PathLike[AnyStr]) -> AnyStr: ...
 @overload
diff --git a/mypy/typeshed/stdlib/unittest/runner.pyi b/mypy/typeshed/stdlib/unittest/runner.pyi
index 46da85619d30..be546f42315e 100644
--- a/mypy/typeshed/stdlib/unittest/runner.pyi
+++ b/mypy/typeshed/stdlib/unittest/runner.pyi
@@ -13,13 +13,14 @@ class _SupportsWriteAndFlush(SupportsWrite[str], SupportsFlush, Protocol): ...
 
 # All methods used by unittest.runner.TextTestResult's stream
 class _TextTestStream(_SupportsWriteAndFlush, Protocol):
-    def writeln(self, arg: str | None = None) -> str: ...
+    def writeln(self, arg: str | None = None, /) -> str: ...
 
 # _WritelnDecorator should have all the same attrs as its stream param.
 # But that's not feasible to do Generically
 # We can expand the attributes if requested
 class _WritelnDecorator(_TextTestStream):
     def __init__(self, stream: _TextTestStream) -> None: ...
+    def writeln(self, arg: str | None = None) -> str: ...
     def __getattr__(self, attr: str) -> Any: ...  # Any attribute from the stream type passed to __init__
     # These attributes are prevented by __getattr__
     stream: Never