all linting should be fixed

Author: siddacious

adafruit_pcf8591/analog_in.py

@@ -54,7 +54,8 @@ def value(self):
 
     @property
     def reference_voltage(self):
-        """The maximum voltage measurable (also known as the reference voltage) as a float in Volts. Assumed to be 3.3V but can be overridden using the `PCF8591` constructor"""
+        """The maximum voltage measurable (also known as the reference voltage) as a float in
+        Volts. Assumed to be 3.3V but can be overridden using the `PCF8591` constructor"""
         if not self._pcf:
             raise RuntimeError(
                 "Underlying ADC does not exist, likely due to callint `deinit`"

adafruit_pcf8591/analog_out.py

@@ -39,7 +39,7 @@ def __init__(self, pcf, dac_pin=0):
 
         """
         self._pcf = pcf
-        if dac_pin is not 0:
+        if dac_pin != 0:
             raise AttributeError("DAC pin must be adafruit_pcf8591.pcf8591.DAC_PIN")
         self._pin_setting = dac_pin
         self._pcf.dac_enabled = True
@@ -62,7 +62,8 @@ def value(self, new_value):  # this may have to scale from 16-bit
         self._pcf.analog_write(new_value >> 8)
         self._value = new_value
 
-    def deinit():
-        """Disable the underlying DAC and release the reference to the PCF8591. Create a new AnalogOut to use it again."""
+    def deinit(self):
+        """Disable the underlying DAC and release the reference to the PCF8591.
+        Create a new AnalogOut to use it again."""
         self._pcf.dac_enabled = False
         self._pcf = None

adafruit_pcf8591/pcf8591.py

@@ -69,7 +69,8 @@ def __init__(self, i2c_bus, address=_PCF8591_DEFAULT_ADDR, reference_voltage=3.3
 
     @property
     def reference_voltage(self):
-        """The voltage level that ADC signals are compared to. An ADC value of 65535 will equal `reference_voltage`"""
+        """The voltage level that ADC signals are compared to.
+        An ADC value of 65535 will equal `reference_voltage`"""
         return self._reference_voltage
 
     def analog_read(self, channel):