Add type hints

Related #2273

lib/hidapi/hidapi_impl.py

@@ -228,7 +228,7 @@ class _DeviceMonitor(Thread):
 
 def _match(
     action: str,
-    device,
+    device: dict[str, Any],
     filter_func: Callable[[int, int, int, bool, bool], dict[str, Any]],
 ):
     """
@@ -393,7 +393,7 @@ def open(vendor_id, product_id, serial=None):
     return device_handle
 
 
-def open_path(device_path) -> Any:
+def open_path(device_path: str) -> int:
     """Open a HID device by its path name.
 
     :param device_path: the path of a ``DeviceInfo`` tuple returned by enumerate().

lib/logitech_receiver/base.py

@@ -66,7 +66,7 @@ class HIDAPI(typing.Protocol):
     def open(self, vendor_id, product_id, serial=None):
         ...
 
-    def open_path(self, path):
+    def open_path(self, path) -> int:
         ...
 
     def enumerate(self, filter_func: Callable[[int, int, int, bool, bool], dict[str, typing.Any]]) -> DeviceInfo:
@@ -233,7 +233,7 @@ def notify_on_receivers_glib(glib: GLib, callback: Callable):
     return hidapi.monitor_glib(glib, callback, _filter_products_of_interest)
 
 
-def open_path(path):
+def open_path(path) -> int:
     """Checks if the given Linux device path points to the right UR device.
 
     :param path: the Linux device path.
@@ -356,7 +356,7 @@ def _is_relevant_message(data: bytes) -> bool:
     return False
 
 
-def _read(handle, timeout):
+def _read(handle, timeout) -> tuple[int, int, bytes]:
     """Read an incoming packet from the receiver.
 
     :returns: a tuple of (report_id, devnumber, data), or `None`.

lib/logitech_receiver/device.py

@@ -23,7 +23,6 @@ import threading
 import time
 import typing
 
-from typing import Any
 from typing import Callable
 from typing import Optional
 from typing import Protocol
@@ -51,7 +50,7 @@ _hidpp20 = hidpp20.Hidpp20()
 
 
 class LowLevelInterface(Protocol):
-    def open_path(self, path) -> Any:
+    def open_path(self, path) -> int:
         ...
 
     def find_paired_node(self, receiver_path: str, index: int, timeout: int):

lib/logitech_receiver/settings_templates.py

@@ -22,7 +22,6 @@ import struct
 import traceback
 
 from time import time
-from typing import Any
 from typing import Callable
 from typing import Protocol
 
@@ -1890,7 +1889,7 @@ class SettingsProtocol(Protocol):
         ...
 
 
-def check_feature(device, settings_class: SettingsProtocol) -> None | bool | Any:
+def check_feature(device, settings_class: SettingsProtocol) -> None | bool | SettingsProtocol:
     if settings_class.feature not in device.features:
         return
     if settings_class.min_version > device.features.get_feature_version(settings_class.feature):

lib/solaar/listener.py

@@ -15,10 +15,13 @@
 ## with this program; if not, write to the Free Software Foundation, Inc.,
 ## 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
+from __future__ import annotations
+
 import errno
 import logging
 import subprocess
 import time
+import typing
 
 from collections import namedtuple
 from functools import partial
@@ -36,9 +39,15 @@ from . import configuration
 from . import dbus
 from . import i18n
 
+if typing.TYPE_CHECKING:
+    from hidapi.common import DeviceInfo
+
 gi.require_version("Gtk", "3.0")  # NOQA: E402
 from gi.repository import GLib  # NOQA: E402 # isort:skip
 
+if typing.TYPE_CHECKING:
+    from logitech_receiver.device import Device
+
 logger = logging.getLogger(__name__)
 
 ACTION_ADD = "add"
@@ -235,7 +244,7 @@ class SolaarListener(listener.EventsListener):
         return f"<SolaarListener({self.receiver.path},{self.receiver.handle})>"
 
 
-def _process_bluez_dbus(device, path, dictionary, signature):
+def _process_bluez_dbus(device: Device, path, dictionary: dict, signature):
     """Process bluez dbus property changed signals for device status
     changes to discover disconnections and connections.
     """
@@ -251,7 +260,7 @@ def _process_bluez_dbus(device, path, dictionary, signature):
         _cleanup_bluez_dbus(device)
 
 
-def _cleanup_bluez_dbus(device):
+def _cleanup_bluez_dbus(device: Device):
     """Remove dbus signal receiver for device"""
     if logger.isEnabledFor(logging.INFO):
         logger.info("bluez cleanup for %s", device)
@@ -261,10 +270,10 @@ def _cleanup_bluez_dbus(device):
 _all_listeners = {}  # all known receiver listeners, listeners that stop on their own may remain here
 
 
-def _start(device_info):
+def _start(device_info: DeviceInfo):
     assert _status_callback and _setting_callback
-    isDevice = device_info.isDevice
-    if not isDevice:
+
+    if not device_info.isDevice:
         receiver_ = logitech_receiver.receiver.create_receiver(base, device_info, _setting_callback)
     else:
         receiver_ = logitech_receiver.device.create_device(base, device_info, _setting_callback)
@@ -345,7 +354,7 @@ def setup_scanner(status_changed_callback, setting_changed_callback, error_callb
     base.notify_on_receivers_glib(GLib, _process_receiver_event)
 
 
-def _process_add(device_info, retry):
+def _process_add(device_info: DeviceInfo, retry):
     try:
         _start(device_info)
     except OSError as e:

tests/logitech_receiver/test_device.py

@@ -31,7 +31,7 @@ class LowLevelInterfaceFake:
     def __init__(self, responses=None):
         self.responses = responses
 
-    def open_path(self, path):
+    def open_path(self, path) -> int:
         return fake_hidpp.open_path(path)
 
     def find_paired_node(self, receiver_path: str, index: int, timeout: int):