black using python 3.7 style

[Adafruit_Blinka-hackapet.git] / src / pulseio.py

diff --git a/src/pulseio.py b/src/pulseio.py
index 2d3f0b588d0bc091eff58855e32335882dd9588b..b8c209bb4d4ecb07ccffdf5e895337e175236f91 100644 (file)
--- a/src/pulseio.py
+++ b/src/pulseio.py
@@ -1,4 +1,21 @@
+"""
+`pulseio` - Pulse Width Modulation input and output control
+===========================================================
+See `CircuitPython:pulseio` in CircuitPython for more details.
+Not supported by all boards.
+
+* Author(s): Melissa LeBlanc-Williams
+"""
+
+import sys
+
 from adafruit_blinka.agnostic import detector
 
+# pylint: disable=unused-import
+
 if detector.board.any_raspberry_pi:
     from adafruit_blinka.microcontroller.bcm283x.pulseio.PulseIn import PulseIn
+elif "sphinx" in sys.modules:
+    pass
+else:
+    raise NotImplementedError("pulseio not supported for this board.")