Merge pull request #3 from FoamyGuy/displayio_api_updates

displayio api updates

Author: dhalbert

README.rst

@@ -94,6 +94,7 @@ Usage Example
     import time
     import board
     import displayio
+    import fourwire
     import adafruit_ek79686
 
     # Used to ensure the display is free in CircuitPython
@@ -107,7 +108,7 @@ Usage Example
     epd_busy = board.D6
 
     # Create the displayio connection to the display pins
-    display_bus = displayio.FourWire(
+    display_bus = fourwire.FourWire(
         spi, command=epd_dc, chip_select=epd_cs, reset=epd_reset, baudrate=1000000
     )
     time.sleep(1)  # Wait a bit

adafruit_ek79686.py

@@ -28,7 +28,13 @@
 import math
 
 from epaperdisplay import EPaperDisplay
-from fourwire import FourWire
+
+try:
+    import typing
+
+    from fourwire import FourWire
+except ImportError:
+    pass
 
 __version__ = "0.0.0+auto.0"
 __repo__ = "https://github.com/adafruit/Adafruit_CircuitPython_EK79686.git"