Fix undefined fields in Python 3.14

Author: srittau

stdlib/asyncio/events.pyi

@@ -21,7 +21,9 @@ from .futures import Future
 from .protocols import BaseProtocol
 from .tasks import Task
 from .transports import BaseTransport, DatagramTransport, ReadTransport, SubprocessTransport, Transport, WriteTransport
-from .unix_events import AbstractChildWatcher
+
+if sys.version_info < (3, 14):
+    from .unix_events import AbstractChildWatcher
 
 # Keep asyncio.__all__ updated with any changes to __all__ here
 if sys.version_info >= (3, 14):

stdlib/sqlite3/__init__.pyi

@@ -60,12 +60,14 @@ from sqlite3.dbapi2 import (
     sqlite_version as sqlite_version,
     sqlite_version_info as sqlite_version_info,
     threadsafety as threadsafety,
-    version_info as version_info,
 )
 from types import TracebackType
 from typing import Any, Literal, Protocol, SupportsIndex, TypeVar, final, overload, type_check_only
 from typing_extensions import Self, TypeAlias
 
+if sys.version_info < (3, 14):
+    from sqlite3.dbapi2 import version_info as version_info
+
 if sys.version_info >= (3, 12):
     from sqlite3.dbapi2 import (
         LEGACY_TRANSACTION_CONTROL as LEGACY_TRANSACTION_CONTROL,

stdlib/typing.pyi

@@ -37,7 +37,6 @@ __all__ = [
     "AsyncIterator",
     "Awaitable",
     "BinaryIO",
-    "ByteString",
     "Callable",
     "ChainMap",
     "ClassVar",
@@ -106,6 +105,9 @@ __all__ = [
     "runtime_checkable",
 ]
 
+if sys.version_info < (3, 14):
+    __all__ += ["ByteString"]
+
 if sys.version_info >= (3, 10):
     __all__ += ["Concatenate", "ParamSpec", "ParamSpecArgs", "ParamSpecKwargs", "TypeAlias", "TypeGuard", "is_typeddict"]
 

stubs/pyflakes/pyflakes/checker.pyi

@@ -149,6 +149,11 @@ class AnnotationState:
 def in_annotation(func: _F) -> _F: ...
 def in_string_annotation(func: _F) -> _F: ...
 
+if sys.version_info < (3, 14):
+    _NameConstant: TypeAlias = ast.NameConstant
+else:
+    _NameConstant: TypeAlias = Never
+
 if sys.version_info >= (3, 10):
     _Match: TypeAlias = ast.Match
     _MatchCase: TypeAlias = ast.match_case
@@ -254,7 +259,7 @@ class Checker:
     def SET(self, tree: ast.Set, omit: _OmitType = None) -> None: ...
     def ATTRIBUTE(self, tree: ast.Attribute, omit: _OmitType = None) -> None: ...
     def STARRED(self, tree: ast.Starred, omit: _OmitType = None) -> None: ...
-    def NAMECONSTANT(self, tree: ast.NameConstant, omit: _OmitType = None) -> None: ...
+    def NAMECONSTANT(self, tree: _NameConstant, omit: _OmitType = None) -> None: ...
     def NAMEDEXPR(self, tree: ast.NamedExpr, omit: _OmitType = None) -> None: ...
     def SUBSCRIPT(self, node: ast.Subscript) -> None: ...
     def CALL(self, node: ast.Call) -> None: ...