using dataclasses instead of typed namedtuple

genmap.py

@@ -23,15 +23,16 @@
 
 import sys
 import textwrap
+import dataclasses
 
 from typing import List
-from typing import NamedTuple
 
 import mako.template
 
 
 # =====
-class _KeyMapping(NamedTuple):
+@dataclasses.dataclass(frozen=True)
+class _KeyMapping:
     kvmd_code: int
     arduino_hid_key: str
     web_key: str

kvmd/apps/ipmi/auth.py

@@ -20,9 +20,10 @@
 # ========================================================================== #
 
 
+import dataclasses
+
 from typing import List
 from typing import Dict
-from typing import NamedTuple
 
 
 # =====
@@ -31,7 +32,8 @@ class IpmiPasswdError(Exception):
         super().__init__("Incorrect IPMI passwd file: " + msg)
 
 
-class IpmiUserCredentials(NamedTuple):
+@dataclasses.dataclass(frozen=True)
+class IpmiUserCredentials:
     ipmi_user: str
     ipmi_passwd: str
     kvmd_user: str

kvmd/apps/kvmd/hid.py

@@ -50,19 +50,19 @@ class _BaseEvent:
         raise NotImplementedError
 
 
-@dataclasses.dataclass  # pylint: disable=abstract-method
+@dataclasses.dataclass(frozen=True)  # pylint: disable=abstract-method
 class _BoolEvent(_BaseEvent):
     name: str
     state: bool
 
 
-@dataclasses.dataclass  # pylint: disable=abstract-method
+@dataclasses.dataclass(frozen=True)  # pylint: disable=abstract-method
 class _IntEvent(_BaseEvent):
     x: int
     y: int
 
 
-@dataclasses.dataclass
+@dataclasses.dataclass(frozen=True)
 class _KeyEvent(_BoolEvent):
     def __post_init__(self) -> None:
         assert self.name in keymap.KEYMAP
@@ -75,7 +75,7 @@ class _KeyEvent(_BoolEvent):
         return b"\x11" + key_bytes + state_bytes + b"\x00\x00"
 
 
-@dataclasses.dataclass
+@dataclasses.dataclass(frozen=True)
 class _MouseMoveEvent(_IntEvent):
     def __post_init__(self) -> None:
         assert -32768 <= self.x <= 32767
@@ -85,7 +85,7 @@ class _MouseMoveEvent(_IntEvent):
         return b"\x12" + struct.pack(">hh", self.x, self.y)
 
 
-@dataclasses.dataclass
+@dataclasses.dataclass(frozen=True)
 class _MouseButtonEvent(_BoolEvent):
     def __post_init__(self) -> None:
         assert self.name in ["left", "right"]
@@ -100,7 +100,7 @@ class _MouseButtonEvent(_BoolEvent):
         return b"\x13" + bytes([code]) + b"\x00\x00\x00"
 
 
-@dataclasses.dataclass
+@dataclasses.dataclass(frozen=True)
 class _MouseWheelEvent(_IntEvent):
     def __post_init__(self) -> None:
         assert self.x == 0  # Горизонтальная прокрутка пока не поддерживается

kvmd/apps/kvmd/msd.py

@@ -24,10 +24,10 @@ import os
 import struct
 import asyncio
 import asyncio.queues
+import dataclasses
 import types
 
 from typing import Dict
-from typing import NamedTuple
 from typing import Callable
 from typing import Type
 from typing import AsyncGenerator
@@ -84,19 +84,22 @@ class MsdIsBusyError(MsdOperationError, aioregion.RegionIsBusyError):
 
 
 # =====
-class _HardwareInfo(NamedTuple):
+@dataclasses.dataclass(frozen=True)
+class _HardwareInfo:
     manufacturer: str
     product: str
     serial: str
 
 
-class _ImageInfo(NamedTuple):
+@dataclasses.dataclass(frozen=True)
+class _ImageInfo:
     name: str
     size: int
     complete: bool
 
 
-class _MassStorageDeviceInfo(NamedTuple):
+@dataclasses.dataclass(frozen=True)
+class _MassStorageDeviceInfo:
     path: str
     real: str
     size: int
@@ -250,13 +253,13 @@ class MassStorageDevice:  # pylint: disable=too-many-instance-attributes
 
     def get_state(self) -> Dict:
         online = (self._enabled and bool(self._device_path))
-        info = (self.__saved_device_info._asdict() if self.__saved_device_info else None)
+        info = (dataclasses.asdict(self.__saved_device_info) if self.__saved_device_info else None)
         connected_to: Optional[str] = None
 
         if online:
             if info:
-                info["hw"] = (info["hw"]._asdict() if info["hw"] else None)
+                info["hw"] = (dataclasses.asdict(info["hw"]) if info["hw"] else None)
-                info["image"] = (info["image"]._asdict() if info["image"] else None)
+                info["image"] = (dataclasses.asdict(info["image"]) if info["image"] else None)
             connected_to = ("kvm" if self.__device_info else "server")
 
         return {