Fix style in gas_sensor.py

Author: bessman

pslab/external/gas_sensor.py

@@ -113,9 +113,7 @@ def _correction(self):
 
     @property
     def _sensor_resistance(self):
-        return (
-            (self.vcc / self._voltage - 1) * self.r_load / self._correction
-        )
+        return (self.vcc / self._voltage - 1) * self.r_load / self._correction
 
     def measure_concentration(self):
         """Measure the concentration of the configured gas.
@@ -126,7 +124,9 @@ def measure_concentration(self):
             Gas concentration in ppm.
         """
         try:
-            return self._params[0] * (self._sensor_resistance / self.r0) ** self._params[1]
+            return (
+                self._params[0] * (self._sensor_resistance / self.r0) ** self._params[1]
+            )
         except TypeError:
             raise TypeError("r0 is not set.")
 

tox.ini

@@ -19,7 +19,7 @@ commands = coverage run --source pslab -m pytest --record
 [testenv:lint]
 deps = -rlint-requirements.txt
 setenv =
-    INCLUDE_PSL_FILES = pslab/bus/ pslab/instrument/ pslab/serial_handler.py pslab/cli.py pslab/external/motor.py
+    INCLUDE_PSL_FILES = pslab/bus/ pslab/instrument/ pslab/serial_handler.py pslab/cli.py pslab/external/motor.py pslab/external/gas_sensor.py
 commands =
     black --check {env:INCLUDE_PSL_FILES}
     flake8 --show-source {env:INCLUDE_PSL_FILES}