diff --git a/homeassistant/components/actiontec/device_tracker.py b/homeassistant/components/actiontec/device_tracker.py
index d9d4a4f2ea6a55b0cc19cbf439459538463d6def..e3fdeaf35f28fe17d71f6a208d6f0e19545b18b7 100644
--- a/homeassistant/components/actiontec/device_tracker.py
+++ b/homeassistant/components/actiontec/device_tracker.py
@@ -95,9 +95,9 @@ class ActiontecDeviceScanner(DeviceScanner):
try:
telnet = telnetlib.Telnet(self.host)
telnet.read_until(b"Username: ")
- telnet.write((self.username + "\n").encode("ascii"))
+ telnet.write((f"{self.username}\n").encode("ascii"))
telnet.read_until(b"Password: ")
- telnet.write((self.password + "\n").encode("ascii"))
+ telnet.write((f"{self.password}\n").encode("ascii"))
prompt = telnet.read_until(b"Wireless Broadband Router> ").split(b"\n")[-1]
telnet.write(b"firewall mac_cache_dump\n")
telnet.write(b"\n")
diff --git a/homeassistant/components/aftership/sensor.py b/homeassistant/components/aftership/sensor.py
index 3f00c8c310da31820034f964be8ca45bc30a0d37..a615c5e40330be2acac5442498b6e07b56a3d56d 100644
--- a/homeassistant/components/aftership/sensor.py
+++ b/homeassistant/components/aftership/sensor.py
@@ -27,7 +27,7 @@ CONF_TITLE = "title"
CONF_TRACKING_NUMBER = "tracking_number"
DEFAULT_NAME = "aftership"
-UPDATE_TOPIC = DOMAIN + "_update"
+UPDATE_TOPIC = f"{DOMAIN}_update"
ICON = "mdi:package-variant-closed"
diff --git a/homeassistant/components/aqualogic/__init__.py b/homeassistant/components/aqualogic/__init__.py
index 9f693966382c48d29613fab7f9c2d4b5a32616ce..7ed38206a11901f63d777e8207348de5e7400201 100644
--- a/homeassistant/components/aqualogic/__init__.py
+++ b/homeassistant/components/aqualogic/__init__.py
@@ -18,7 +18,7 @@ from homeassistant.helpers import config_validation as cv
_LOGGER = logging.getLogger(__name__)
DOMAIN = "aqualogic"
-UPDATE_TOPIC = DOMAIN + "_update"
+UPDATE_TOPIC = f"{DOMAIN}_update"
CONF_UNIT = "unit"
RECONNECT_INTERVAL = timedelta(seconds=10)
diff --git a/homeassistant/components/arwn/sensor.py b/homeassistant/components/arwn/sensor.py
index 6684a5b882b83737a2f5623bf3ed01be47a44448..7be5c4bfb935b01fc3ce0c9925591819c825befa 100644
--- a/homeassistant/components/arwn/sensor.py
+++ b/homeassistant/components/arwn/sensor.py
@@ -32,7 +32,7 @@ def discover_sensors(topic, payload):
unit = TEMP_CELSIUS
return ArwnSensor(name, "temp", unit)
if domain == "moisture":
- name = parts[2] + " Moisture"
+ name = f"{parts[2]} Moisture"
return ArwnSensor(name, "moisture", unit, "mdi:water-percent")
if domain == "rain":
if len(parts) >= 3 and parts[2] == "today":
diff --git a/homeassistant/components/darksky/sensor.py b/homeassistant/components/darksky/sensor.py
index 26ba590888f9994db1c3ada5a7800ca3a54778c6..0d6814fca10d66946b3b7d601870378b77d04f89 100644
--- a/homeassistant/components/darksky/sensor.py
+++ b/homeassistant/components/darksky/sensor.py
@@ -771,7 +771,8 @@ def convert_to_camel(data):
This is not pythonic, but needed for certain situations.
"""
components = data.split("_")
- return components[0] + "".join(x.title() for x in components[1:])
+ capital_components = "".join(x.title() for x in components[1:])
+ return f"{components[0]}{capital_components}"
class DarkSkyData:
diff --git a/homeassistant/components/denon/media_player.py b/homeassistant/components/denon/media_player.py
index 9f210add0af0709c1ce3e1ab1ee9d8c19c2f2913..11c31107ef60e93f18364ca06380765cac9bd854 100644
--- a/homeassistant/components/denon/media_player.py
+++ b/homeassistant/components/denon/media_player.py
@@ -187,7 +187,7 @@ class DenonDevice(MediaPlayerDevice):
"NSE8",
]
for line in self.telnet_request(telnet, "NSE", all_lines=True):
- self._mediainfo += line[len(answer_codes.pop(0)) :] + "\n"
+ self._mediainfo += f"{line[len(answer_codes.pop(0)) :]}\n"
else:
self._mediainfo = self.source
@@ -257,7 +257,7 @@ class DenonDevice(MediaPlayerDevice):
def set_volume_level(self, volume):
"""Set volume level, range 0..1."""
- self.telnet_command(f"MV{str(round(volume * self._volume_max)).zfill(2)}")
+ self.telnet_command(f"MV{round(volume * self._volume_max):02}")
def mute_volume(self, mute):
"""Mute (true) or unmute (false) media player."""
diff --git a/homeassistant/components/dublin_bus_transport/sensor.py b/homeassistant/components/dublin_bus_transport/sensor.py
index 5de0b62a4a9a5837748b86dd919ef120b28897ab..e75775bf75f522226cedb0991f09772b477f2291 100644
--- a/homeassistant/components/dublin_bus_transport/sensor.py
+++ b/homeassistant/components/dublin_bus_transport/sensor.py
@@ -94,7 +94,7 @@ class DublinPublicTransportSensor(Entity):
if self._times is not None:
next_up = "None"
if len(self._times) > 1:
- next_up = self._times[1][ATTR_ROUTE] + " in "
+ next_up = f"{self._times[1][ATTR_ROUTE]} in "
next_up += self._times[1][ATTR_DUE_IN]
return {
diff --git a/homeassistant/components/dwd_weather_warnings/sensor.py b/homeassistant/components/dwd_weather_warnings/sensor.py
index 966ec407ce8fa80ce0c6f5eed9edca89a4b82c08..2b7d2296a0160ee099c77a0d2ce1dab53fbe5828 100644
--- a/homeassistant/components/dwd_weather_warnings/sensor.py
+++ b/homeassistant/components/dwd_weather_warnings/sensor.py
@@ -133,9 +133,9 @@ class DwdWeatherWarningsSensor(Entity):
else:
raise Exception("Unknown warning type")
- data["warning_count"] = self._api.data[prefix + "_warning_count"]
+ data["warning_count"] = self._api.data[f"{prefix}_warning_count"]
i = 0
- for event in self._api.data[prefix + "_warnings"]:
+ for event in self._api.data[f"{prefix}_warnings"]:
i = i + 1
data[f"warning_{i}_name"] = event["event"]
diff --git a/homeassistant/components/ecobee/binary_sensor.py b/homeassistant/components/ecobee/binary_sensor.py
index 71aaee1c40548fd84bd7e07cd2710f6a280299b0..2f422007ff45500d6ad2721b084e6f13efd50259 100644
--- a/homeassistant/components/ecobee/binary_sensor.py
+++ b/homeassistant/components/ecobee/binary_sensor.py
@@ -28,7 +28,7 @@ class EcobeeBinarySensor(BinarySensorDevice):
def __init__(self, data, sensor_name, sensor_index):
"""Initialize the Ecobee sensor."""
self.data = data
- self._name = sensor_name + " Occupancy"
+ self._name = f"{sensor_name} Occupancy"
self.sensor_name = sensor_name
self.index = sensor_index
self._state = None
diff --git a/homeassistant/components/econet/water_heater.py b/homeassistant/components/econet/water_heater.py
index 26ee7cb8bd422fd40338055e3e782cd575267f87..8fede954255c45b15b20a0c6c22a4c6c642f421e 100644
--- a/homeassistant/components/econet/water_heater.py
+++ b/homeassistant/components/econet/water_heater.py
@@ -132,11 +132,7 @@ class EcoNetWaterHeater(WaterHeaterDevice):
self.ha_state_to_econet[value] = key
for mode in self.supported_modes:
if mode not in ECONET_STATE_TO_HA:
- error = (
- "Invalid operation mode mapping. "
- + mode
- + " doesn't map. Please report this."
- )
+ error = f"Invalid operation mode mapping. {mode} doesn't map. Please report this."
_LOGGER.error(error)
@property
diff --git a/homeassistant/components/group/__init__.py b/homeassistant/components/group/__init__.py
index fd44a80cf3cf6761b849e4e802a26de1ffc1dc0c..e4966a1a4ceef11101d8502a261a6901e0294111 100644
--- a/homeassistant/components/group/__init__.py
+++ b/homeassistant/components/group/__init__.py
@@ -174,7 +174,7 @@ def get_entity_ids(
if not domain_filter:
return cast(List[str], entity_ids)
- domain_filter = domain_filter.lower() + "."
+ domain_filter = f"{domain_filter.lower()}."
return [ent_id for ent_id in entity_ids if ent_id.startswith(domain_filter)]
diff --git a/homeassistant/components/hydrawise/sensor.py b/homeassistant/components/hydrawise/sensor.py
index 53bca7996576b21127a2f625f69bfe47ef87b4ec..88146dbeb0d1746c24f20c8723e6ab9cbdcca099 100644
--- a/homeassistant/components/hydrawise/sensor.py
+++ b/homeassistant/components/hydrawise/sensor.py
@@ -58,11 +58,7 @@ class HydrawiseSensor(HydrawiseEntity):
if relay["nicetime"] == "Not scheduled":
self._state = "not_scheduled"
else:
- self._state = (
- relay["nicetime"].split(",")[0]
- + " "
- + relay["nicetime"].split(" ")[3]
- )
+ self._state = f"{relay['nicetime'].split(',')[0]} {relay['nicetime'].split(' ')[3]}"
@property
def icon(self):
diff --git a/homeassistant/components/hyperion/light.py b/homeassistant/components/hyperion/light.py
index fa5d58fb385296f4a8c4be60067b5f3c1e170003..fc96f672afbf09879d0d76d942b89043862b4ff1 100644
--- a/homeassistant/components/hyperion/light.py
+++ b/homeassistant/components/hyperion/light.py
@@ -285,7 +285,7 @@ class Hyperion(Light):
sock.close()
return False
- sock.send(bytearray(json.dumps(request) + "\n", "utf-8"))
+ sock.send(bytearray(f"{json.dumps(request)}\n", "utf-8"))
try:
buf = sock.recv(4096)
except socket.timeout:
diff --git a/homeassistant/components/influxdb/__init__.py b/homeassistant/components/influxdb/__init__.py
index 1b3093447ecbdb52c4c6f1f533bdcecace65f216..922a0197cf160023e7a32c5dcf92306f106a6fce 100644
--- a/homeassistant/components/influxdb/__init__.py
+++ b/homeassistant/components/influxdb/__init__.py
@@ -239,7 +239,7 @@ def setup(hass, config):
elif key != "unit_of_measurement" or include_uom:
# If the key is already in fields
if key in json["fields"]:
- key = key + "_"
+ key = f"{key}_"
# Prevent column data errors in influxDB.
# For each value we try to cast it as float
# But if we can not do it we store the value
diff --git a/homeassistant/components/irish_rail_transport/sensor.py b/homeassistant/components/irish_rail_transport/sensor.py
index 3bb7da52e22c4f7652f17d41ab76722ff93956fc..76f8d0dfaabd2f02dbc3fab52b60d2a1cd05369f 100644
--- a/homeassistant/components/irish_rail_transport/sensor.py
+++ b/homeassistant/components/irish_rail_transport/sensor.py
@@ -97,9 +97,11 @@ class IrishRailTransportSensor(Entity):
if self._times:
next_up = "None"
if len(self._times) > 1:
- next_up = self._times[1][ATTR_ORIGIN] + " to "
- next_up += self._times[1][ATTR_DESTINATION] + " in "
- next_up += self._times[1][ATTR_DUE_IN]
+ next_up = (
+ f"{self._times[1][ATTR_ORIGIN]} to "
+ f"{self._times[1][ATTR_DESTINATION]} in "
+ f"{self._times[1][ATTR_DUE_IN]}"
+ )
return {
ATTR_ATTRIBUTION: ATTRIBUTION,
diff --git a/homeassistant/components/knx/climate.py b/homeassistant/components/knx/climate.py
index e6da946c81c38b7e8984b5d78faa5b943f3cef08..e7e489dba789666d1118c121d2262efa3eeac8b5 100644
--- a/homeassistant/components/knx/climate.py
+++ b/homeassistant/components/knx/climate.py
@@ -139,7 +139,7 @@ def async_add_entities_config(hass, config, async_add_entities):
"""Set up climate for KNX platform configured within platform."""
climate_mode = XknxClimateMode(
hass.data[DATA_KNX].xknx,
- name=config[CONF_NAME] + " Mode",
+ name=f"{config[CONF_NAME]} Mode",
group_address_operation_mode=config.get(CONF_OPERATION_MODE_ADDRESS),
group_address_operation_mode_state=config.get(
CONF_OPERATION_MODE_STATE_ADDRESS
diff --git a/homeassistant/components/life360/__init__.py b/homeassistant/components/life360/__init__.py
index 50117c210a2a2459051d46f2dfca55ba46f860e4..8338cbf7f116e9a7cb1852754271c91a1df421ee 100644
--- a/homeassistant/components/life360/__init__.py
+++ b/homeassistant/components/life360/__init__.py
@@ -57,7 +57,7 @@ def _prefix(value):
if not value:
return ""
if not value.endswith("_"):
- return value + "_"
+ return f"{value}_"
return value
diff --git a/homeassistant/components/light/__init__.py b/homeassistant/components/light/__init__.py
index 5b9b923cc56f8c167ca1593b6f08c19e011ec409..e86de00b59f3bd014f7b8fa2069cb9c0646f76a9 100644
--- a/homeassistant/components/light/__init__.py
+++ b/homeassistant/components/light/__init__.py
@@ -325,7 +325,7 @@ class Profiles:
def get_default(cls, entity_id):
"""Return the default turn-on profile for the given light."""
# pylint: disable=unsupported-membership-test
- name = entity_id + ".default"
+ name = f"{entity_id}.default"
if name in cls._all:
return name
name = "group.all_lights.default"
diff --git a/homeassistant/components/mobile_app/const.py b/homeassistant/components/mobile_app/const.py
index f43f1c88396d30fc750ff696669d61973b0667d2..a9cdc67693246ca714b8039f1a6ac89332e2ad65 100644
--- a/homeassistant/components/mobile_app/const.py
+++ b/homeassistant/components/mobile_app/const.py
@@ -70,5 +70,5 @@ ATTR_SENSOR_TYPE_SENSOR = "sensor"
ATTR_SENSOR_UNIQUE_ID = "unique_id"
ATTR_SENSOR_UOM = "unit_of_measurement"
-SIGNAL_SENSOR_UPDATE = DOMAIN + "_sensor_update"
+SIGNAL_SENSOR_UPDATE = f"{DOMAIN}_sensor_update"
SIGNAL_LOCATION_UPDATE = DOMAIN + "_location_update_{}"
diff --git a/homeassistant/components/mqtt/discovery.py b/homeassistant/components/mqtt/discovery.py
index 812bb183e1c46497d38fa8806605cd55c8fd2329..ce8207fc28d82b8cb3b3e77ec80bf57213716e1f 100644
--- a/homeassistant/components/mqtt/discovery.py
+++ b/homeassistant/components/mqtt/discovery.py
@@ -166,7 +166,7 @@ async def async_start(
hass.data[CONFIG_ENTRY_IS_SETUP] = set()
await mqtt.async_subscribe(
- hass, discovery_topic + "/#", async_device_message_received, 0
+ hass, f"{discovery_topic}/#", async_device_message_received, 0
)
return True
diff --git a/homeassistant/components/mychevy/__init__.py b/homeassistant/components/mychevy/__init__.py
index 0ec4d05a623bdb18e9c076d2a8770bd9298f66c0..2b8bd65dfe8a01fba6d9b579a54f61a0cdcfbafd 100644
--- a/homeassistant/components/mychevy/__init__.py
+++ b/homeassistant/components/mychevy/__init__.py
@@ -13,7 +13,7 @@ from homeassistant.util import Throttle
DOMAIN = "mychevy"
UPDATE_TOPIC = DOMAIN
-ERROR_TOPIC = DOMAIN + "_error"
+ERROR_TOPIC = f"{DOMAIN}_error"
MYCHEVY_SUCCESS = "success"
MYCHEVY_ERROR = "error"
diff --git a/homeassistant/components/nest/binary_sensor.py b/homeassistant/components/nest/binary_sensor.py
index a029fcfe7d65fc805dc73442d3c0dab22d6603b5..34dc7b06ade620ae01b7d338c7bc0fea33ef78fc 100644
--- a/homeassistant/components/nest/binary_sensor.py
+++ b/homeassistant/components/nest/binary_sensor.py
@@ -69,7 +69,7 @@ async def async_setup_entry(hass, entry, async_add_entities):
for variable in conditions:
if variable in _BINARY_TYPES_DEPRECATED:
wstr = (
- variable + " is no a longer supported "
+ f"{variable} is no a longer supported "
"monitored_conditions. See "
"https://www.home-assistant.io/integrations/binary_sensor.nest/ "
"for valid options."
diff --git a/homeassistant/components/nest/sensor.py b/homeassistant/components/nest/sensor.py
index 064c78917e1cc28c2cfa19821d4ad51fd8db2676..082b5b19b5f465f16b319198b578f230c8cc2737 100644
--- a/homeassistant/components/nest/sensor.py
+++ b/homeassistant/components/nest/sensor.py
@@ -96,7 +96,7 @@ async def async_setup_entry(hass, entry, async_add_entities):
)
else:
wstr = (
- variable + " is no a longer supported "
+ f"{variable} is no a longer supported "
"monitored_conditions. See "
"https://www.home-assistant.io/integrations/"
"binary_sensor.nest/ for valid options."
diff --git a/homeassistant/components/ombi/__init__.py b/homeassistant/components/ombi/__init__.py
index 750772ce8f5beb2a5deeba61e673f3ed0856d250..dcd8f2641612b0aa10e4dbe56738c1efa019df05 100644
--- a/homeassistant/components/ombi/__init__.py
+++ b/homeassistant/components/ombi/__init__.py
@@ -38,7 +38,7 @@ def urlbase(value) -> str:
value = str(value).strip("/")
if not value:
return value
- return value + "/"
+ return f"{value}/"
SUBMIT_MOVIE_REQUEST_SERVICE_SCHEMA = vol.Schema({vol.Required(ATTR_NAME): cv.string})