kill old-style namedtuples

electrum/plugin.py

@@ -22,13 +22,13 @@
 # ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 # CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
-from collections import namedtuple
 import traceback
 import sys
 import os
 import pkgutil
 import time
 import threading
+from typing import NamedTuple, Any, Union
 
 from .i18n import _
 from .util import (profiler, PrintError, DaemonThread, UserCancelled,
@@ -259,14 +259,23 @@ class BasePlugin(PrintError):
         pass
 
 
-class DeviceNotFoundError(Exception):
-    pass
+class DeviceNotFoundError(Exception): pass
+class DeviceUnpairableError(Exception): pass
 
-class DeviceUnpairableError(Exception):
-    pass
 
-Device = namedtuple("Device", "path interface_number id_ product_key usage_page")
-DeviceInfo = namedtuple("DeviceInfo", "device label initialized")
+class Device(NamedTuple):
+    path: Union[str, bytes]
+    interface_number: int
+    id_: str
+    product_key: Any   # when using hid, often Tuple[int, int]
+    usage_page: int
+
+
+class DeviceInfo(NamedTuple):
+    device: Device
+    label: str
+    initialized: bool
+
 
 class DeviceMgr(ThreadJob, PrintError):
     '''Manages hardware clients.  A client communicates over a hardware