add pydocstyle

Author: Ernst79

.pre-commit-config.yaml

@@ -14,6 +14,11 @@ repos:
       - id: end-of-file-fixer
       - id: trailing-whitespace
       - id: debug-statements
+-   repo: https://github.com/asottile/pyupgrade
+    rev: v2.37.3
+    hooks:
+      - id: pyupgrade
+        args: [--py37-plus]
 -   repo: https://github.com/PyCQA/isort
     rev: 5.12.0
     hooks:

custom_components/ble_monitor/config_flow.py

@@ -167,7 +167,7 @@ async def async_step_add_remove_device(self, user_input=None):
                     and user_input[key].upper()
                     != self._sel_device.get(key).upper()
                 ):
-                    errors[key] = "cannot_change_{}".format(key)
+                    errors[key] = f"cannot_change_{key}"
                     user_input[key] = self._sel_device.get(key)
                 else:
                     self._validate(user_input[key], key, errors)
@@ -248,7 +248,7 @@ async def async_step_add_remove_device(self, user_input=None):
                 else:
                     _LOGGER.error("Removing BLE monitor device %s from device registry", key)
                     device_registry.async_remove_device(device.id)
-                _LOGGER.error("Removing BLE monitor device %s from configuration {}".format(device), key)
+                _LOGGER.error(f"Removing BLE monitor device %s from configuration {device}", key)
                 del self._devices[key]
             return self._show_main_form(errors)
         device_option_schema = vol.Schema(

custom_components/ble_monitor/device_tracker.py

@@ -165,7 +165,7 @@ def __init__(self, config, key):
         self._fkey = identifier_normalize(key)
         self._device_settings = self.get_device_settings()
         self._device_name = self._device_settings["name"]
-        self._name = "ble tracker {}".format(self._device_name)
+        self._name = f"ble tracker {self._device_name}"
         self._state = None
         self._extra_state_attributes = {}
         self._unique_id = "ble_tracker_" + self._device_name