Ran black, updated to pylint 2.x

.github/workflows/build.yml

@@ -40,7 +40,7 @@ jobs:
         source actions-ci/install.sh
     - name: Pip install pylint, black, & Sphinx
       run: |
-        pip install --force-reinstall pylint==1.9.2 black==19.10b0 Sphinx sphinx-rtd-theme
+        pip install --force-reinstall pylint black==19.10b0 Sphinx sphinx-rtd-theme
     - name: Library version
       run: git describe --dirty --always --tags
     - name: PyLint

adafruit_esp32spi/PWMOut.py

@@ -27,7 +27,8 @@
 * Author(s): Brent Rubell
 """
 
-class PWMOut():
+
+class PWMOut:
     """
     Implementation of CircuitPython PWMOut for ESP32SPI.
 
@@ -37,16 +38,18 @@ class PWMOut():
     :param int frequency: The target frequency in Hertz (32-bit).
     :param bool variable_frequency: True if the frequency will change over time.
     """
-    ESP32_PWM_PINS = set([0, 1, 2, 4, 5,
-                          12, 13, 14, 15,
-                          16, 17, 18, 19,
-                          21, 22, 23, 25,
-                          26, 27, 32, 33])
-    def __init__(self, esp, pwm_pin, *, frequency=500, duty_cycle=0, variable_frequency=False):
+
+    ESP32_PWM_PINS = set(
+        [0, 1, 2, 4, 5, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 23, 25, 26, 27, 32, 33]
+    )
+
+    def __init__(
+        self, esp, pwm_pin, *, frequency=500, duty_cycle=0, variable_frequency=False
+    ):
         if pwm_pin in self.ESP32_PWM_PINS:
             self._pwm_pin = pwm_pin
         else:
-            raise AttributeError("Pin %d is not a valid ESP32 GPIO Pin."%pwm_pin)
+            raise AttributeError("Pin %d is not a valid ESP32 GPIO Pin." % pwm_pin)
         self._esp = esp
         self._duty_cycle = duty_cycle
         self._freq = frequency
@@ -67,8 +70,10 @@ def deinit(self):
     def _is_deinited(self):
         """Checks if PWMOut object has been previously de-initalized"""
         if self._pwm_pin is None:
-            raise ValueError("PWMOut Object has been deinitialized and can no longer "
-                             "be used. Create a new PWMOut object.")
+            raise ValueError(
+                "PWMOut Object has been deinitialized and can no longer "
+                "be used. Create a new PWMOut object."
+            )
 
     @property
     def duty_cycle(self):