Introduce Self type

This change removes Python 3.8, 3.9 and 3.10 support.

This reverts commit 6952e9a.

Author: jfhbrook

pyee/asyncio.py

@@ -1,12 +1,10 @@
 # -*- coding: utf-8 -*-
 
 from asyncio import AbstractEventLoop, ensure_future, Future, iscoroutine, wait
-from typing import Any, Callable, cast, Dict, Optional, Set, Tuple
+from typing import Any, Callable, cast, Dict, Optional, Self, Set, Tuple
 
 from pyee.base import EventEmitter
 
-Self = Any
-
 __all__ = ["AsyncIOEventEmitter"]
 
 

pyee/base.py

@@ -10,14 +10,13 @@
     Mapping,
     Optional,
     overload,
+    Self,
     Set,
     Tuple,
     TypeVar,
     Union,
 )
 
-Self = Any
-
 
 class PyeeException(Exception):
     """An exception internal to pyee. Deprecated in favor of PyeeError."""

pyee/executor.py

@@ -2,12 +2,10 @@
 
 from concurrent.futures import Executor, Future, ThreadPoolExecutor
 from types import TracebackType
-from typing import Any, Callable, Dict, Optional, Tuple, Type
+from typing import Any, Callable, Dict, Optional, Self, Tuple, Type
 
 from pyee.base import EventEmitter
 
-Self = Any
-
 __all__ = ["ExecutorEventEmitter"]
 
 

pyee/trio.py

@@ -7,9 +7,9 @@
     AsyncGenerator,
     Awaitable,
     Callable,
-    cast,
     Dict,
     Optional,
+    Self,
     Tuple,
     Type,
 )
@@ -18,8 +18,6 @@
 
 from pyee.base import EventEmitter, PyeeError
 
-Self = Any
-
 __all__ = ["TrioEventEmitter"]
 
 
@@ -126,7 +124,7 @@ async def __aenter__(self: Self) -> "TrioEventEmitter":
         self._context: Optional[AbstractAsyncContextManager["TrioEventEmitter"]] = (
             self.context()
         )
-        return await cast(Any, self._context).__aenter__()
+        return await self._context.__aenter__()
 
     async def __aexit__(
         self: Self,

pyee/twisted.py

@@ -1,16 +1,13 @@
 # -*- coding: utf-8 -*-
 
 from asyncio import iscoroutine
-from typing import Any, Callable, cast, Dict, Optional, Tuple
+from typing import Any, Callable, Dict, Optional, Self, Tuple
 
 from twisted.internet.defer import Deferred, ensureDeferred
 from twisted.python.failure import Failure
 
 from pyee.base import EventEmitter, PyeeError
 
-Self = Any
-
-
 __all__ = ["TwistedEventEmitter"]
 
 
@@ -90,6 +87,6 @@ def _emit_handle_potential_error(self: Self, event: str, error: Any) -> None:
             else:
                 self.emit("error", PyeeError(f"Unexpected failure object: {error}"))
         else:
-            cast(Any, super(TwistedEventEmitter, self))._emit_handle_potential_error(
+            (super(TwistedEventEmitter, self))._emit_handle_potential_error(
                 event, error
             )

pyproject.toml

@@ -21,9 +21,6 @@ classifiers = [
     "Operating System :: OS Independent",
     "Programming Language :: Python",
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.8",
-    "Programming Language :: Python :: 3.9",
-    "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",