Use lowercase type everywhere (#6853)

Author: AlexWaygood

stdlib/_compression.pyi

@@ -1,6 +1,6 @@
 from _typeshed import WriteableBuffer
 from io import BufferedIOBase, RawIOBase
-from typing import Any, Callable, Protocol, Type
+from typing import Any, Callable, Protocol
 
 BUFFER_SIZE: Any
 
@@ -16,7 +16,7 @@ class DecompressReader(RawIOBase):
         self,
         fp: _Reader,
         decomp_factory: Callable[..., object],
-        trailing_error: Type[Exception] | tuple[Type[Exception], ...] = ...,
+        trailing_error: type[Exception] | tuple[type[Exception], ...] = ...,
         **decomp_args: Any,
     ) -> None: ...
     def readable(self) -> bool: ...

stdlib/_csv.pyi

@@ -1,4 +1,4 @@
-from typing import Any, Iterable, Iterator, Protocol, Type, Union
+from typing import Any, Iterable, Iterator, Protocol, Union
 from typing_extensions import Literal
 
 QUOTE_ALL: Literal[1]
@@ -19,7 +19,7 @@ class Dialect:
     strict: int
     def __init__(self) -> None: ...
 
-_DialectLike = Union[str, Dialect, Type[Dialect]]
+_DialectLike = Union[str, Dialect, type[Dialect]]
 
 class _reader(Iterator[list[str]]):
     dialect: Dialect

stdlib/_dummy_threading.pyi

@@ -1,6 +1,6 @@
 import sys
 from types import FrameType, TracebackType
-from typing import Any, Callable, Iterable, Mapping, Optional, Type, TypeVar
+from typing import Any, Callable, Iterable, Mapping, Optional, TypeVar
 
 # TODO recursive type
 _TF = Callable[[FrameType, str, Any], Optional[Callable[..., Any]]]
@@ -67,7 +67,7 @@ class Lock:
     def __init__(self) -> None: ...
     def __enter__(self) -> bool: ...
     def __exit__(
-        self, exc_type: Type[BaseException] | None, exc_val: BaseException | None, exc_tb: TracebackType | None
+        self, exc_type: type[BaseException] | None, exc_val: BaseException | None, exc_tb: TracebackType | None
     ) -> bool | None: ...
     def acquire(self, blocking: bool = ..., timeout: float = ...) -> bool: ...
     def release(self) -> None: ...
@@ -77,7 +77,7 @@ class _RLock:
     def __init__(self) -> None: ...
     def __enter__(self) -> bool: ...
     def __exit__(
-        self, exc_type: Type[BaseException] | None, exc_val: BaseException | None, exc_tb: TracebackType | None
+        self, exc_type: type[BaseException] | None, exc_val: BaseException | None, exc_tb: TracebackType | None
     ) -> bool | None: ...
     def acquire(self, blocking: bool = ..., timeout: float = ...) -> bool: ...
     def release(self) -> None: ...
@@ -88,7 +88,7 @@ class Condition:
     def __init__(self, lock: Lock | _RLock | None = ...) -> None: ...
     def __enter__(self) -> bool: ...
     def __exit__(
-        self, exc_type: Type[BaseException] | None, exc_val: BaseException | None, exc_tb: TracebackType | None
+        self, exc_type: type[BaseException] | None, exc_val: BaseException | None, exc_tb: TracebackType | None
     ) -> bool | None: ...
     def acquire(self, blocking: bool = ..., timeout: float = ...) -> bool: ...
     def release(self) -> None: ...
@@ -101,7 +101,7 @@ class Condition:
 class Semaphore:
     def __init__(self, value: int = ...) -> None: ...
     def __exit__(
-        self, exc_type: Type[BaseException] | None, exc_val: BaseException | None, exc_tb: TracebackType | None
+        self, exc_type: type[BaseException] | None, exc_val: BaseException | None, exc_tb: TracebackType | None
     ) -> bool | None: ...
     def acquire(self, blocking: bool = ..., timeout: float | None = ...) -> bool: ...
     def __enter__(self, blocking: bool = ..., timeout: float | None = ...) -> bool: ...

stdlib/_py_abc.pyi

@@ -1,10 +1,10 @@
-from typing import Any, Type, TypeVar
+from typing import Any, TypeVar
 
 _T = TypeVar("_T")
 
 # TODO: Change the return into a NewType bound to int after pytype/#597
 def get_cache_token() -> object: ...
 
 class ABCMeta(type):
-    def __new__(__mcls, __name: str, __bases: tuple[Type[Any], ...], __namespace: dict[str, Any]) -> ABCMeta: ...
-    def register(cls, subclass: Type[_T]) -> Type[_T]: ...
+    def __new__(__mcls, __name: str, __bases: tuple[type[Any], ...], __namespace: dict[str, Any]) -> ABCMeta: ...
+    def register(cls, subclass: type[_T]) -> type[_T]: ...

stdlib/_thread.pyi

@@ -2,7 +2,7 @@ import sys
 from _typeshed import structseq
 from threading import Thread
 from types import TracebackType
-from typing import Any, Callable, NoReturn, Optional, Type
+from typing import Any, Callable, NoReturn, Optional
 from typing_extensions import final
 
 error = RuntimeError
@@ -18,7 +18,7 @@ class LockType:
     def locked(self) -> bool: ...
     def __enter__(self) -> bool: ...
     def __exit__(
-        self, type: Type[BaseException] | None, value: BaseException | None, traceback: TracebackType | None
+        self, type: type[BaseException] | None, value: BaseException | None, traceback: TracebackType | None
     ) -> None: ...
 
 def start_new_thread(function: Callable[..., Any], args: tuple[Any, ...], kwargs: dict[str, Any] = ...) -> int: ...
@@ -34,10 +34,10 @@ if sys.version_info >= (3, 8):
     def get_native_id() -> int: ...  # only available on some platforms
     @final
     class _ExceptHookArgs(
-        structseq[Any], tuple[Type[BaseException], Optional[BaseException], Optional[TracebackType], Optional[Thread]]
+        structseq[Any], tuple[type[BaseException], Optional[BaseException], Optional[TracebackType], Optional[Thread]]
     ):
         @property
-        def exc_type(self) -> Type[BaseException]: ...
+        def exc_type(self) -> type[BaseException]: ...
         @property
         def exc_value(self) -> BaseException | None: ...
         @property

stdlib/_typeshed/__init__.pyi

@@ -7,7 +7,7 @@ import ctypes
 import mmap
 import sys
 from os import PathLike
-from typing import AbstractSet, Any, Awaitable, Container, Generic, Iterable, Protocol, Type, TypeVar, Union
+from typing import AbstractSet, Any, Awaitable, Container, Generic, Iterable, Protocol, TypeVar, Union
 from typing_extensions import Final, Literal, final
 
 _KT = TypeVar("_KT")
@@ -215,4 +215,4 @@ class structseq(Generic[_T_co]):
     # The second parameter will accept a dict of any kind without raising an exception,
     # but only has any meaning if you supply it a dict where the keys are strings.
     # https://github.com/python/typeshed/pull/6560#discussion_r767149830
-    def __new__(cls: Type[_T], sequence: Iterable[_T_co], dict: dict[str, Any] = ...) -> _T: ...
+    def __new__(cls: type[_T], sequence: Iterable[_T_co], dict: dict[str, Any] = ...) -> _T: ...

stdlib/_warnings.pyi

@@ -1,21 +1,21 @@
-from typing import Any, Type, overload
+from typing import Any, overload
 
 _defaultaction: str
 _onceregistry: dict[Any, Any]
-filters: list[tuple[str, str | None, Type[Warning], str | None, int]]
+filters: list[tuple[str, str | None, type[Warning], str | None, int]]
 
 @overload
-def warn(message: str, category: Type[Warning] | None = ..., stacklevel: int = ..., source: Any | None = ...) -> None: ...
+def warn(message: str, category: type[Warning] | None = ..., stacklevel: int = ..., source: Any | None = ...) -> None: ...
 @overload
 def warn(message: Warning, category: Any = ..., stacklevel: int = ..., source: Any | None = ...) -> None: ...
 @overload
 def warn_explicit(
     message: str,
-    category: Type[Warning],
+    category: type[Warning],
     filename: str,
     lineno: int,
     module: str | None = ...,
-    registry: dict[str | tuple[str, Type[Warning], int], int] | None = ...,
+    registry: dict[str | tuple[str, type[Warning], int], int] | None = ...,
     module_globals: dict[str, Any] | None = ...,
     source: Any | None = ...,
 ) -> None: ...
@@ -26,7 +26,7 @@ def warn_explicit(
     filename: str,
     lineno: int,
     module: str | None = ...,
-    registry: dict[str | tuple[str, Type[Warning], int], int] | None = ...,
+    registry: dict[str | tuple[str, type[Warning], int], int] | None = ...,
     module_globals: dict[str, Any] | None = ...,
     source: Any | None = ...,
 ) -> None: ...

stdlib/abc.pyi

@@ -1,6 +1,6 @@
 import sys
 from _typeshed import SupportsWrite
-from typing import Any, Callable, Type, TypeVar
+from typing import Any, Callable, TypeVar
 
 _T = TypeVar("_T")
 _FuncT = TypeVar("_FuncT", bound=Callable[..., Any])
@@ -12,7 +12,7 @@ class ABCMeta(type):
     def __instancecheck__(cls: ABCMeta, instance: Any) -> Any: ...
     def __subclasscheck__(cls: ABCMeta, subclass: Any) -> Any: ...
     def _dump_registry(cls: ABCMeta, file: SupportsWrite[str] | None = ...) -> None: ...
-    def register(cls: ABCMeta, subclass: Type[_T]) -> Type[_T]: ...
+    def register(cls: ABCMeta, subclass: type[_T]) -> type[_T]: ...
 
 def abstractmethod(funcobj: _FuncT) -> _FuncT: ...
 
@@ -27,4 +27,4 @@ class ABC(metaclass=ABCMeta): ...
 def get_cache_token() -> object: ...
 
 if sys.version_info >= (3, 10):
-    def update_abstractmethods(cls: Type[_T]) -> Type[_T]: ...
+    def update_abstractmethods(cls: type[_T]) -> type[_T]: ...

stdlib/aifc.pyi

@@ -1,7 +1,7 @@
 import sys
 from _typeshed import Self
 from types import TracebackType
-from typing import IO, Any, NamedTuple, Type, Union, overload
+from typing import IO, Any, NamedTuple, Union, overload
 from typing_extensions import Literal
 
 class Error(Exception): ...
@@ -21,7 +21,7 @@ class Aifc_read:
     def __init__(self, f: _File) -> None: ...
     def __enter__(self: Self) -> Self: ...
     def __exit__(
-        self, exc_type: Type[BaseException] | None, exc_val: BaseException | None, exc_tb: TracebackType | None
+        self, exc_type: type[BaseException] | None, exc_val: BaseException | None, exc_tb: TracebackType | None
     ) -> None: ...
     def initfp(self, file: IO[bytes]) -> None: ...
     def getfp(self) -> IO[bytes]: ...
@@ -45,7 +45,7 @@ class Aifc_write:
     def __del__(self) -> None: ...
     def __enter__(self: Self) -> Self: ...
     def __exit__(
-        self, exc_type: Type[BaseException] | None, exc_val: BaseException | None, exc_tb: TracebackType | None
+        self, exc_type: type[BaseException] | None, exc_val: BaseException | None, exc_tb: TracebackType | None
     ) -> None: ...
     def initfp(self, file: IO[bytes]) -> None: ...
     def aiff(self) -> None: ...

stdlib/argparse.pyi

@@ -1,5 +1,5 @@
 import sys
-from typing import IO, Any, Callable, Generator, Generic, Iterable, NoReturn, Pattern, Protocol, Sequence, Type, TypeVar, overload
+from typing import IO, Any, Callable, Generator, Generic, Iterable, NoReturn, Pattern, Protocol, Sequence, TypeVar, overload
 
 _T = TypeVar("_T")
 _ActionT = TypeVar("_ActionT", bound=Action)
@@ -47,7 +47,7 @@ class _ActionsContainer:
     def add_argument(
         self,
         *name_or_flags: str,
-        action: str | Type[Action] = ...,
+        action: str | type[Action] = ...,
         nargs: int | str = ...,
         const: Any = ...,
         default: Any = ...,
@@ -67,7 +67,7 @@ class _ActionsContainer:
     def _add_container_actions(self, container: _ActionsContainer) -> None: ...
     def _get_positional_kwargs(self, dest: str, **kwargs: Any) -> dict[str, Any]: ...
     def _get_optional_kwargs(self, *args: Any, **kwargs: Any) -> dict[str, Any]: ...
-    def _pop_action_class(self, kwargs: Any, default: Type[Action] | None = ...) -> Type[Action]: ...
+    def _pop_action_class(self, kwargs: Any, default: type[Action] | None = ...) -> type[Action]: ...
     def _get_handler(self) -> Callable[[Action, Iterable[tuple[str, Action]]], Any]: ...
     def _check_conflict(self, action: Action) -> None: ...
     def _handle_conflict_error(self, action: Action, conflicting_actions: Iterable[tuple[str, Action]]) -> NoReturn: ...
@@ -143,7 +143,7 @@ class ArgumentParser(_AttributeHolder, _ActionsContainer):
             title: str = ...,
             description: str | None = ...,
             prog: str = ...,
-            action: Type[Action] = ...,
+            action: type[Action] = ...,
             option_string: str = ...,
             dest: str | None = ...,
             required: bool = ...,
@@ -157,8 +157,8 @@ class ArgumentParser(_AttributeHolder, _ActionsContainer):
             title: str = ...,
             description: str | None = ...,
             prog: str = ...,
-            parser_class: Type[_ArgumentParserT] = ...,
-            action: Type[Action] = ...,
+            parser_class: type[_ArgumentParserT] = ...,
+            action: type[Action] = ...,
             option_string: str = ...,
             dest: str | None = ...,
             required: bool = ...,
@@ -173,7 +173,7 @@ class ArgumentParser(_AttributeHolder, _ActionsContainer):
             title: str = ...,
             description: str | None = ...,
             prog: str = ...,
-            action: Type[Action] = ...,
+            action: type[Action] = ...,
             option_string: str = ...,
             dest: str | None = ...,
             help: str | None = ...,
@@ -186,8 +186,8 @@ class ArgumentParser(_AttributeHolder, _ActionsContainer):
             title: str = ...,
             description: str | None = ...,
             prog: str = ...,
-            parser_class: Type[_ArgumentParserT] = ...,
-            action: Type[Action] = ...,
+            parser_class: type[_ArgumentParserT] = ...,
+            action: type[Action] = ...,
             option_string: str = ...,
             dest: str | None = ...,
             help: str | None = ...,
@@ -237,7 +237,7 @@ class HelpFormatter:
     _current_section: Any
     _whitespace_matcher: Pattern[str]
     _long_break_matcher: Pattern[str]
-    _Section: Type[Any]  # Nested class
+    _Section: type[Any]  # Nested class
     def __init__(self, prog: str, indent_increment: int = ..., max_help_position: int = ..., width: int | None = ...) -> None: ...
     def _indent(self) -> None: ...
     def _dedent(self) -> None: ...
@@ -410,9 +410,9 @@ class _VersionAction(Action):
 
 # undocumented
 class _SubParsersAction(Action, Generic[_ArgumentParserT]):
-    _ChoicesPseudoAction: Type[Any]  # nested class
+    _ChoicesPseudoAction: type[Any]  # nested class
     _prog_prefix: str
-    _parser_class: Type[_ArgumentParserT]
+    _parser_class: type[_ArgumentParserT]
     _name_parser_map: dict[str, _ArgumentParserT]
     choices: dict[str, _ArgumentParserT]
     _choices_actions: list[Action]
@@ -421,7 +421,7 @@ class _SubParsersAction(Action, Generic[_ArgumentParserT]):
             self,
             option_strings: Sequence[str],
             prog: str,
-            parser_class: Type[_ArgumentParserT],
+            parser_class: type[_ArgumentParserT],
             dest: str = ...,
             required: bool = ...,
             help: str | None = ...,
@@ -432,7 +432,7 @@ class _SubParsersAction(Action, Generic[_ArgumentParserT]):
             self,
             option_strings: Sequence[str],
             prog: str,
-            parser_class: Type[_ArgumentParserT],
+            parser_class: type[_ArgumentParserT],
             dest: str = ...,
             help: str | None = ...,
             metavar: str | tuple[str, ...] | None = ...,