import psutil
from libqtile.widget import base
[docs]
class ThermalSensor(base.BackgroundPoll):
"""Widget to display temperature sensor information
For using the thermal sensor widget you need to have lm-sensors installed.
You can get a list of the tag_sensors executing "sensors" in your terminal.
Then you can choose which you want, otherwise it will display the first
available.
Widget requirements: psutil_.
.. _psutil: https://pypi.org/project/psutil/
"""
defaults = [
(
"format",
"{temp:.1f}{unit}",
"Display string format. Three options available: "
"``{temp}`` - temperature, "
"``{tag}`` - tag of the temperature sensor, and "
"``{unit}`` - °C or °F",
),
("metric", True, "True to use metric/C, False to use imperial/F"),
("update_interval", 2, "Update interval in seconds"),
("tag_sensor", None, 'Tag of the temperature sensor. For example: "temp1" or "Core 0"'),
(
"threshold",
70,
"If the current temperature value is above, then change to foreground_alert colour",
),
("foreground_alert", "ff0000", "Foreground colour alert"),
]
def __init__(self, **config):
base.BackgroundPoll.__init__(self, **config)
self.add_defaults(ThermalSensor.defaults)
temp_values = self.get_temp_sensors()
if temp_values is None:
self.data = "sensors command not found"
elif len(temp_values) == 0:
self.data = "Temperature sensors not found"
elif self.tag_sensor is None:
for k in temp_values:
self.tag_sensor = k
break
def _configure(self, qtile, bar):
self.unit = "°C" if self.metric else "°F"
base.BackgroundPoll._configure(self, qtile, bar)
self.foreground_normal = self.foreground
def get_temp_sensors(self):
"""
Reads temperatures from sys-fs via psutil.
Output will be read Fahrenheit if user has specified it to be.
"""
temperature_list = {}
temps = psutil.sensors_temperatures(fahrenheit=not self.metric)
empty_index = 0
for kernel_module in temps:
for sensor in temps[kernel_module]:
label = sensor.label
if not label:
label = "{}-{}".format(
kernel_module if kernel_module else "UNKNOWN", str(empty_index)
)
empty_index += 1
temperature_list[label] = sensor.current
return temperature_list
def poll(self):
temp_values = self.get_temp_sensors()
# Temperature not available
if (temp_values is None) or (self.tag_sensor not in temp_values):
return "N/A"
temp_value = temp_values.get(self.tag_sensor)
if temp_value > self.threshold:
self.layout.colour = self.foreground_alert
else:
self.layout.colour = self.foreground_normal
val = dict(temp=temp_value, tag=self.tag_sensor, unit=self.unit)
return self.format.format(**val)