lint by black

[hackapet/Adafruit_Blinka.git] / src / adafruit_blinka / microcontroller / generic_agnostic_board / pin.py

diff --git a/src/adafruit_blinka/microcontroller/generic_agnostic_board/pin.py b/src/adafruit_blinka/microcontroller/generic_agnostic_board/pin.py
index b04e71de7196aa2d8abb8f19eb74856bd666e649..47d97545661e59b0c05c2a09905b46565f99a956 100644 (file)
--- a/src/adafruit_blinka/microcontroller/generic_agnostic_board/pin.py
+++ b/src/adafruit_blinka/microcontroller/generic_agnostic_board/pin.py
@@ -71,6 +71,8 @@ class Pin:
     PULL_UP = 1
     PULL_DOWN = 2
 
+    # pylint: disable=no-self-use
+
     def return_toggle(self):
         """Returns the pin's expected value, toggling between True and False"""
         toggle_state = not self.previous_value
@@ -150,10 +152,10 @@ class Pin:
         self.current_value = self.pin_behavior.get(self.id)()
 
         # is pin a pull up and pin is LOW?
-        if self._pull == Pin.PULL_UP and self.current_value == False:
+        if self._pull == Pin.PULL_UP and self.current_value is False:
             self.current_value = False
         # is pin a pull down and pin is HIGH?
-        if self._pull == Pin.PULL_DOWN and self.current_value == True:
+        if self._pull == Pin.PULL_DOWN and self.current_value is True:
             self.current_value = False
         return self.current_value
 
@@ -178,8 +180,8 @@ class Pin:
         # Analog Out
         if self._mode == Pin.DAC:
             if val is None:
-                # write only
-                raise AttributeError("unreadable attribute")
+                self.previous_value = self.current_value
+                return self.current_value
             self.write(val)
             return None
         raise RuntimeError(
@@ -200,6 +202,7 @@ A0 = Pin(7)
 A1 = Pin(8)
 A2 = Pin(9)
 A3 = Pin(10)
+A4 = Pin(12)
 
 D7 = Pin(11)