Add @final to several more stdlib classes (#7215)

Co-authored-by: hauntsaninja <>

stdlib/_curses.pyi

@@ -1,6 +1,7 @@
 import sys
 from _typeshed import SupportsRead
 from typing import IO, Any, NamedTuple, Union, overload
+from typing_extensions import final
 
 if sys.platform != "win32":
     _chtype = Union[str, bytes, int]
@@ -374,6 +375,7 @@ if sys.platform != "win32":
 
     class error(Exception): ...
 
+    @final
     class _CursesWindow:
         encoding: str
         @overload

stdlib/parser.pyi

@@ -1,6 +1,7 @@
 from _typeshed import StrOrBytesPath
 from types import CodeType
 from typing import Any, Sequence
+from typing_extensions import final
 
 def expr(source: str) -> STType: ...
 def suite(source: str) -> STType: ...
@@ -14,6 +15,7 @@ def issuite(st: STType) -> bool: ...
 
 class ParserError(Exception): ...
 
+@final
 class STType:
     def compile(self, filename: StrOrBytesPath = ...) -> CodeType: ...
     def isexpr(self) -> bool: ...

stdlib/select.pyi

@@ -2,6 +2,7 @@ import sys
 from _typeshed import FileDescriptorLike, Self
 from types import TracebackType
 from typing import Any, Iterable
+from typing_extensions import final
 
 if sys.platform != "win32":
     PIPE_BUF: int
@@ -33,6 +34,7 @@ error = OSError
 
 if sys.platform != "linux" and sys.platform != "win32":
     # BSD only
+    @final
     class kevent:
         data: Any
         fflags: int
@@ -50,6 +52,7 @@ if sys.platform != "linux" and sys.platform != "win32":
             udata: Any = ...,
         ) -> None: ...
     # BSD only
+    @final
     class kqueue:
         closed: bool
         def __init__(self) -> None: ...

stdlib/typing.pyi

@@ -13,6 +13,7 @@ if sys.version_info >= (3, 9):
 
 Any = object()
 
+@_final
 class TypeVar:
     __name__: str
     __bound__: Any | None
@@ -30,6 +31,7 @@ class TypeVar:
 _promote = object()
 
 # N.B. Keep this definition in sync with typing_extensions._SpecialForm
+@_final
 class _SpecialForm:
     def __getitem__(self, typeargs: Any) -> object: ...
     if sys.version_info >= (3, 10):
@@ -748,6 +750,7 @@ class _TypedDict(Mapping[str, object], metaclass=ABCMeta):
 def type_check_only(func_or_cls: _F) -> _F: ...
 
 if sys.version_info >= (3, 7):
+    @_final
     class ForwardRef:
         __forward_arg__: str
         __forward_code__: CodeType

stdlib/typing_extensions.pyi

@@ -150,6 +150,7 @@ NotRequired: _SpecialForm
 LiteralString: _SpecialForm
 Unpack: _SpecialForm
 
+@final
 class TypeVarTuple:
     __name__: str
     def __init__(self, name: str) -> None: ...

stdlib/xxlimited.pyi

@@ -1,8 +1,10 @@
 import sys
 from typing import Any
+from typing_extensions import final
 
 class Str: ...
 
+@final
 class Xxo:
     def demo(self) -> None: ...