Remove support for python <3.11 (#1273)

Python 3.11 ships with latest Debian Bookworm. 
pypy is not that widely used with this library based on statistics. It could be added back when pypy supports python 3.11.

kasa/transports/aestransport.py

@@ -12,7 +12,7 @@ import logging
 import time
 from collections.abc import AsyncGenerator
 from enum import Enum, auto
-from typing import TYPE_CHECKING, Any, Dict, cast
+from typing import TYPE_CHECKING, Any, cast
 
 from cryptography.hazmat.primitives import hashes, padding, serialization
 from cryptography.hazmat.primitives.asymmetric import padding as asymmetric_padding
@@ -193,7 +193,7 @@ class AesTransport(BaseTransport):
             )
 
         if TYPE_CHECKING:
-            resp_dict = cast(Dict[str, Any], resp_dict)
+            resp_dict = cast(dict[str, Any], resp_dict)
             assert self._encryption_session is not None
 
         self._handle_response_error_code(
@@ -326,7 +326,7 @@ class AesTransport(BaseTransport):
             )
 
         if TYPE_CHECKING:
-            resp_dict = cast(Dict[str, Any], resp_dict)
+            resp_dict = cast(dict[str, Any], resp_dict)
 
         self._handle_response_error_code(resp_dict, "Unable to complete handshake")
 

kasa/transports/klaptransport.py

@@ -51,7 +51,8 @@ import secrets
 import struct
 import time
 from asyncio import Future
-from typing import TYPE_CHECKING, Any, Generator, cast
+from collections.abc import Generator
+from typing import TYPE_CHECKING, Any, cast
 
 from cryptography.hazmat.primitives import padding
 from cryptography.hazmat.primitives.ciphers import Cipher, algorithms, modes

kasa/transports/sslaestransport.py

@@ -9,7 +9,7 @@ import logging
 import secrets
 import ssl
 from enum import Enum, auto
-from typing import TYPE_CHECKING, Any, Dict, cast
+from typing import TYPE_CHECKING, Any, cast
 
 from yarl import URL
 
@@ -227,7 +227,7 @@ class SslAesTransport(BaseTransport):
         )
 
         if TYPE_CHECKING:
-            resp_dict = cast(Dict[str, Any], resp_dict)
+            resp_dict = cast(dict[str, Any], resp_dict)
             assert self._encryption_session is not None
 
         if "result" in resp_dict and "response" in resp_dict["result"]:
@@ -393,7 +393,7 @@ class SslAesTransport(BaseTransport):
             raise AuthenticationError(f"Error trying handshake1: {resp_dict}")
 
         if TYPE_CHECKING:
-            resp_dict = cast(Dict[str, Any], resp_dict)
+            resp_dict = cast(dict[str, Any], resp_dict)
 
         server_nonce = resp_dict["result"]["data"]["nonce"]
         device_confirm = resp_dict["result"]["data"]["device_confirm"]

kasa/transports/xortransport.py

@@ -18,12 +18,9 @@ import errno
 import logging
 import socket
 import struct
+from asyncio import timeout as asyncio_timeout
 from collections.abc import Generator
 
-# When support for cpython older than 3.11 is dropped
-# async_timeout can be replaced with asyncio.timeout
-from async_timeout import timeout as asyncio_timeout
-
 from kasa.deviceconfig import DeviceConfig
 from kasa.exceptions import KasaException, _RetryableError
 from kasa.json import loads as json_loads