Third-party stubs: enforce CamelCase for type alias names

stubs/SQLAlchemy/sqlalchemy/sql/base.pyi

@@ -5,6 +5,7 @@ from typing import Any, ClassVar
 from .. import util
 from ..util import HasMemoized, hybridmethod, memoized_property
 from . import roles
+from .elements import ColumnElement
 from .traversals import (
     HasCacheKey as HasCacheKey,
     HasCopyInternals as HasCopyInternals,
@@ -151,7 +152,7 @@ class ImmutableColumnCollection(util.ImmutableContainer, ColumnCollection):
     extend: Any
     remove: Any
 
-class ColumnSet(util.ordered_column_set):
+class ColumnSet(util.ordered_column_set[ColumnElement[Any]]):
     def contains_column(self, col): ...
     def extend(self, cols) -> None: ...
     def __add__(self, other): ...

stubs/SQLAlchemy/sqlalchemy/util/_collections.pyi

@@ -2,10 +2,8 @@ import collections.abc
 from _typeshed import Self, SupportsKeysAndGetItem
 from collections.abc import Callable, Iterable, Iterator, Mapping
 from typing import Any, Generic, NoReturn, TypeVar, overload
-from typing_extensions import TypeAlias
 
 from ..cimmutabledict import immutabledict as immutabledict
-from ..sql.elements import ColumnElement
 
 _KT = TypeVar("_KT")
 _VT = TypeVar("_VT")
@@ -163,7 +161,11 @@ class WeakPopulateDict(dict[Any, Any]):
 
 column_set = set
 column_dict = dict
-ordered_column_set: TypeAlias = OrderedSet[ColumnElement[Any]]
+# Ignore Y026, this isn't a type alias.
+# We have to do `ordered_column_set = OrderedSet[_T]
+# instead of `ordered_column_set = OrderedSet`,
+# or pyright complains
+ordered_column_set = OrderedSet[_T]  # noqa: Y026
 
 def unique_list(seq: Iterable[_T], hashfunc: Callable[[_T], Any] | None = ...) -> list[_T]: ...
 

stubs/SQLAlchemy/sqlalchemy/util/_concurrency_py3k.pyi

@@ -5,11 +5,11 @@ from typing_extensions import TypeAlias
 
 from .langhelpers import memoized_property
 
-_greenlet: TypeAlias = Any  # actually greenlet.greenlet
+_Greenlet: TypeAlias = Any  # actually greenlet.greenlet
 
 def is_exit_exception(e): ...
 
-class _AsyncIoGreenlet(_greenlet):
+class _AsyncIoGreenlet(_Greenlet):
     driver: Any
     gr_context: Any
     def __init__(self, fn, driver) -> None: ...

stubs/boto/boto/utils.pyi

@@ -96,14 +96,14 @@ class LRUCache(dict[_KT, _VT]):
     def __init__(self, capacity: int) -> None: ...
 
 # This exists to work around Password.str's name shadowing the str type
-_str: TypeAlias = str
+_Str: TypeAlias = str
 
 class Password:
     hashfunc: Callable[[bytes], _Hash]
-    str: _str | None
-    def __init__(self, str: _str | None = ..., hashfunc: Callable[[bytes], _Hash] | None = ...) -> None: ...
-    def set(self, value: bytes | _str) -> None: ...
-    def __eq__(self, other: _str | bytes | None) -> bool: ...  # type: ignore[override]
+    str: _Str | None
+    def __init__(self, str: _Str | None = ..., hashfunc: Callable[[bytes], _Hash] | None = ...) -> None: ...
+    def set(self, value: bytes | _Str) -> None: ...
+    def __eq__(self, other: _Str | bytes | None) -> bool: ...  # type: ignore[override]
     def __len__(self) -> int: ...
 
 def notify(

stubs/caldav/caldav/objects.pyi

@@ -13,7 +13,7 @@ from .lib.url import URL
 
 _CC = TypeVar("_CC", bound=CalendarObjectResource)
 
-_vCalAddress: TypeAlias = Any  # actually icalendar.vCalAddress
+_VCalAddress: TypeAlias = Any  # actually icalendar.vCalAddress
 
 class DAVObject:
     id: str | None
@@ -58,7 +58,7 @@ class Principal(DAVObject):
         self, name: str | None = ..., cal_id: str | None = ..., supported_calendar_component_set: Any | None = ...
     ) -> Calendar: ...
     def calendar(self, name: str | None = ..., cal_id: str | None = ...) -> Calendar: ...
-    def get_vcal_address(self) -> _vCalAddress: ...
+    def get_vcal_address(self) -> _VCalAddress: ...
     calendar_home_set: CalendarSet  # can also be set to anything URL.objectify() accepts
     def freebusy_request(self, dtstart, dtend, attendees): ...
     def calendar_user_address_set(self) -> list[str]: ...

stubs/html5lib/html5lib/_tokenizer.pyi

@@ -1,8 +1,7 @@
 from typing import Any
-from typing_extensions import TypeAlias
 
 entitiesTrie: Any
-attributeMap: TypeAlias = dict[Any, Any]
+attributeMap = dict
 
 class HTMLTokenizer:
     stream: Any

stubs/psutil/psutil/__init__.pyi

@@ -3,7 +3,6 @@ from _typeshed import Self
 from collections.abc import Callable, Iterable, Iterator
 from contextlib import AbstractContextManager
 from typing import Any
-from typing_extensions import TypeAlias
 
 from ._common import (
     AIX as AIX,
@@ -109,8 +108,8 @@ elif sys.platform == "darwin":
 elif sys.platform == "win32":
     from ._pswindows import pfullmem, pmem
 else:
-    pmem: TypeAlias = Any
-    pfullmem: TypeAlias = Any
+    class pmem(Any): ...
+    class pfullmem(Any): ...
 
 if sys.platform == "linux":
     PROCFS_PATH: str

stubs/psycopg2/psycopg2/_psycopg.pyi

@@ -112,7 +112,7 @@ class cursor:
     def __iter__(self: Self) -> Self: ...
     def __next__(self) -> tuple[Any, ...]: ...
 
-_cursor: TypeAlias = cursor
+_Cursor: TypeAlias = cursor
 
 class AsIs:
     adapted: Any
@@ -246,7 +246,7 @@ class Diagnostics:
     def __init__(self, __err: Error) -> None: ...
 
 class Error(Exception):
-    cursor: _cursor | None
+    cursor: _Cursor | None
     diag: Diagnostics
     pgcode: str | None
     pgerror: str | None
@@ -357,7 +357,7 @@ class Xid:
     def __getitem__(self, __index): ...
     def __len__(self): ...
 
-_T_cur = TypeVar("_T_cur", bound=_cursor)
+_T_cur = TypeVar("_T_cur", bound=cursor)
 
 class connection:
     DataError: Any
@@ -377,7 +377,7 @@ class connection:
     def binary_types(self) -> Any: ...
     @property
     def closed(self) -> int: ...
-    cursor_factory: Callable[..., _cursor]
+    cursor_factory: Callable[..., _Cursor]
     @property
     def dsn(self) -> str: ...
     @property
@@ -415,7 +415,7 @@ class connection:
     def close(self) -> None: ...
     def commit(self) -> None: ...
     @overload
-    def cursor(self, name: str | bytes | None = ..., *, withhold: bool = ..., scrollable: bool | None = ...) -> _cursor: ...
+    def cursor(self, name: str | bytes | None = ..., *, withhold: bool = ..., scrollable: bool | None = ...) -> _Cursor: ...
     @overload
     def cursor(
         self,

stubs/python-dateutil/dateutil/relativedelta.pyi

@@ -9,7 +9,7 @@ from ._common import weekday
 _SelfT = TypeVar("_SelfT", bound=relativedelta)
 _DateT = TypeVar("_DateT", date, datetime)
 # Work around attribute and type having the same name.
-_weekday: TypeAlias = weekday
+_Weekday: TypeAlias = weekday
 
 MO: weekday
 TU: weekday
@@ -30,7 +30,7 @@ class relativedelta:
     microseconds: int
     year: int | None
     month: int | None
-    weekday: _weekday | None
+    weekday: _Weekday | None
     day: int | None
     hour: int | None
     minute: int | None
@@ -52,7 +52,7 @@ class relativedelta:
         year: int | None = ...,
         month: int | None = ...,
         day: int | None = ...,
-        weekday: int | _weekday | None = ...,
+        weekday: int | _Weekday | None = ...,
         yearday: int | None = ...,
         nlyearday: int | None = ...,
         hour: int | None = ...,

stubs/python-dateutil/dateutil/rrule.pyi

@@ -84,7 +84,7 @@ class _iterinfo:
     def mtimeset(self, hour, minute, second): ...
     def stimeset(self, hour, minute, second): ...
 
-_rrule: TypeAlias = rrule
+_RRule: TypeAlias = rrule
 
 class rruleset(rrulebase):
     class _genitem:
@@ -100,7 +100,7 @@ class rruleset(rrulebase):
         def __ne__(self, other): ...
 
     def __init__(self, cache: bool = ...) -> None: ...
-    def rrule(self, rrule: _rrule): ...
+    def rrule(self, rrule: _RRule): ...
     def rdate(self, rdate): ...
     def exrule(self, exrule): ...
     def exdate(self, exdate): ...

stubs/typed-ast/typed_ast/ast27.pyi

@@ -24,7 +24,7 @@ PyCF_ONLY_AST: int
 
 # ast classes
 
-_identifier: TypeAlias = str
+_Identifier: TypeAlias = str
 
 class AST:
     _attributes: tuple[str, ...]
@@ -55,14 +55,14 @@ class stmt(AST):
     col_offset: int
 
 class FunctionDef(stmt):
-    name: _identifier
+    name: _Identifier
     args: arguments
     body: list[stmt]
     decorator_list: list[expr]
     type_comment: str | None
 
 class ClassDef(stmt):
-    name: _identifier
+    name: _Identifier
     bases: list[expr]
     body: list[stmt]
     decorator_list: list[expr]
@@ -133,7 +133,7 @@ class Import(stmt):
     names: list[alias]
 
 class ImportFrom(stmt):
-    module: _identifier | None
+    module: _Identifier | None
     names: list[alias]
     level: int | None
 
@@ -143,7 +143,7 @@ class Exec(stmt):
     locals: expr | None
 
 class Global(stmt):
-    names: list[_identifier]
+    names: list[_Identifier]
 
 class Expr(stmt):
     value: expr
@@ -153,7 +153,7 @@ class Break(stmt): ...
 class Continue(stmt): ...
 class slice(AST): ...
 
-_slice: TypeAlias = slice  # this lets us type the variable named 'slice' below
+_Slice: TypeAlias = slice  # this lets us type the variable named 'slice' below
 
 class Slice(slice):
     lower: expr | None
@@ -245,16 +245,16 @@ class Str(expr):
 
 class Attribute(expr):
     value: expr
-    attr: _identifier
+    attr: _Identifier
     ctx: expr_context
 
 class Subscript(expr):
     value: expr
-    slice: _slice
+    slice: _Slice
     ctx: expr_context
 
 class Name(expr):
-    id: _identifier
+    id: _Identifier
     ctx: expr_context
 
 class List(expr):
@@ -319,18 +319,18 @@ class ExceptHandler(AST):
 
 class arguments(AST):
     args: list[expr]
-    vararg: _identifier | None
-    kwarg: _identifier | None
+    vararg: _Identifier | None
+    kwarg: _Identifier | None
     defaults: list[expr]
     type_comments: list[str | None]
 
 class keyword(AST):
-    arg: _identifier
+    arg: _Identifier
     value: expr
 
 class alias(AST):
-    name: _identifier
-    asname: _identifier | None
+    name: _Identifier
+    asname: _Identifier | None
 
 class TypeIgnore(AST):
     lineno: int